General Catalog

U.S. TSUBAKI INC. GENERAL CATALOG

DRIVE CHAINS

CONVEYOR CHAINS

S P R O C K E T S

www.ustsubaki.com

PT COMPONENTS

U.S. T SUBAKI , I NC .

301 E AST M ARQUARDT D RIVE

W HEELING , I LLINOIS 60090

T EL : 800-323-7790

T EL : 847-459-9500

F AX : 847-459-9515

W EB S ITE : www.ustsubaki.com

Distributed By:

NOTE: IN ACCORDANCE WITH THE POLICY OF U.S. TSUBAKI, INC. TO CONSISTENTLY IMPROVE ITS PRODUCTS, THE SPECIFICATIONS IN THIS CATALOG ARE SUBJECT TO CHANGE WITHOUT NOTICE. FOR CURRENT TERMS AND CONDITIONS OF SALE, SEE OUR CURRENT PRICE LIST.

U.S. TSUBAKI DRIVE CHAINS

Contents

Page

ASME/ANSI RS ROLLER CHAIN

A-1 ~ A-24 A-1 ~ A-5 A-6 ~ A-19

INTRODUCTION

RS25 THROUGH RS240

HEAVY SERIES

A-20 A-21

RS DOUBLE PITCH ROLLER CHAINS

SELECTION AND ENGINEERING INFORMATION

A-22 ~ A-24 A-25 ~ A-30 A-25 ~ A-26

LAMBDA ® CHAIN

INTRODUCTION RS DRIVE LAMBDA

A-27 A-28 A-28

NICKEL-PLATED DRIVE LAMBDA

BS/DIN DRIVE LAMBDA

LAMBDA HORSEPOWER RATINGS

A-29 ~ A-30 A-31 ~ A-34 A-35 ~ A-42 A-35 ~ A-36

ENERGY SERIES ® CHAIN

SUPER CHAIN

INTRODUCTION RS-T SERIES RS-HT SERIES SUPER SERIES SUPER-H SERIES

A-37 A-38 A-39 A-40 A-41 A-42

ULTRA SUPER SERIES SELECTION INFORMATION

MINIATURE CHAIN

A-43 ~ A-46 A-47 ~ A-52

BS/DIN ROLLER CHAIN

INTRODUCTION

A-47 A-48 A-49 A-50

BS/DIN CHAIN SERIES BS/DIN DRIVE LAMBDA BS/DIN STAINLESS STEEL

SELECTION AND ENGINEERING INFORMATION

A-51 ~ A-52 A-53 ~ A-62

ANTI-CORROSIVE/HEAT RESISTANT CHAIN

INTRODUCTION NEPTUNE ® CHAIN

A-53 A-54

NICKEL-PLATED CHAIN STAINLESS STEEL CHAIN

A-55 ~ A-56 A-57 ~ A-58

POLY-STEEL CHAIN

A-59 A-60

CORROSION RESISTANCE GUIDE

SELECTION AND ENGINEERING INFORMATION

A-61 ~ A-62 A-63 ~ A-68 A-69 ~ A-72

LEAF CHAIN

SPECIALTY CHAIN

LUBE-FREE CHAIN, FX CHAIN

A-70 A-71 A-72

ROLLERLESS CHAIN, WRENCH CHAIN, LAMINATED BLOCK CHAIN

AGRICULTURE CHAIN

CHAIN TOOLS

A-73 ~ A-74 A-75 ~ A-83

ENGINEERING INFORMATION

INSTALLATION AND ARRANGEMENT

A-76 A-77 A-78

LUBRICATION

TROUBLESHOOTING GUIDE ANSI SPROCKET DIMENSIONS PITCH CONVERSION TABLE

A-79 ~ A-82 A-83 ~ A-84

WARNING STATEMENT

A-85

A-iii

U.S. TSUBAKI RS ROLLER CHAIN

U.S. TSUBAKI ROLLER CHAIN — A SOLID DIFFERENCE ASME/ANSI RS Roller Chain

RS ROLLER CHAIN RS11 ˜ RS240

Higher Horsepower Ratings U.S. Tsubaki ASME/ANSI Chains handle up to 33 percent more horsepower so you can increase drive performance without increasing chain size. In fact, depending on your application, you may be able to transmit the same horsepower with a smaller, less costly chain. The improvement comes from a U.S. Tsubaki exclusive ring coining process for the slip fit connecting link and special processing on the two-pitch offset link.

Longer Wear Life U.S. Tsubaki Roller Chain lasts up to twice as long as our previous chain in many applications. Advanced technology allows us to combine the strength, durability, and reliability of a solid bushing with our patented lube groove on the inner surface of sizes RS80 through RS140. The solid bushings are precise round cylinders, which means better contact between the pin and bushing. The lube grooves hold oil where chain needs it most. The result is longer lasting chain.

Greater Fatigue Strength U.S. Tsubaki ASME/ANSI Chains are designed to have higher fatigue strength. The wider waist of the link plates puts more metal where you need it — running your application. There is less downtime because chains operate longer. Operating costs are reduced because chains perform more efficiently. These benefits go right to your bottom line.

S-N Curve

Horsepower Ratings

A & a: Fatigue strength B & b: Tensile strength

Wear Elongation Curve

Improved Tsubaki Chain Previous Tsubaki Chain

Competitor A Competitor B

Previou s T s ubaki Chain

Improved T s ubaki Chain

Improved Tsubaki Chain

33% Increa s e in Hore s power Ratin g

1.5

RS80-RS140

1.0

Other roller chain

.05

1 10 10 2

10 3

10 6

Rev s Per Minute (RPM)

10 4

10 5

10 7

* Ratin gs are for R S 80-R S 240 Roller Chain s

100

150

200

Time (Hour s )

"N" Number of times load is applied

Save Time & Money Wear in the pin-bushing joint can lead to elongation and replacement. U.S. Tsubaki’s ASME/ANSI Chains have a patented lube groove that holds lubricant right where it’s needed — in the pin-bushing joint. Tsubaki chains last longer, reducing maintenance, operating, and replacement costs.

A-1

U.S. TSUBAKI RS ROLLER CHAIN

Heat Treatment Ensures Durability Chain durability depends to a great extent on the heat-treatment of the various parts. The use of the most advanced heat-treatment methods and equipment guarantees that U.S. Tsubaki roller chains are highly durable.

Assurance of Greater Fatigue Strength The wider waist of U.S. Tsubaki link plates ensures greater fatigue strength for all chain sizes. Fatigue strength (max. allowable load) of each size can be found in this catalog.

5) Improved U.S. Tsubaki roller chain sizes RS80 through RS140 have the patented PerforMax™ solid lube groove bushings and last up to twice as long in many applications. The lube groove retains oil at the critical pin- bushing contact point, extending the life of the chain.

U.S. Tsubaki

Other Brands

Patented PerforMax ™ solid lube groove bushing

Longer Wear Life & Less Initial Adjustment 1) U.S. Tsubaki has decreased initial wear elongation to 0.01% and increased wear life by up to twice as long in many applications. Where initial elongation is a problem, as in precision applications or when you simply demand the best, U.S. Tsubaki roller chain is the solution. 2) Our original prelubricant minimizes wear elongation to enable a vast increase in the chain's wear life. 3) U.S. Tsubaki’s lube groove bushings hold oil at the pin-bushing interface, extending the working life of the chain.

Heat Treatment

Shot Peened Parts Link plates and rollers are shot peened for greater fatigue strength.

Prelubrication A special lubrication is applied by U.S. Tsubaki to bearing surfaces by hot dipping to extend chain life and reduce maintenance costs.

Factory Preloading U.S. Tsubaki roller chains are continuously preloaded on multi-sprockets after final assembly as shown below. This results in minimum initial stretch.

Perfectly cylindrical inside bushing wall

Prelubrication

A Completely Automated Manufacturing Process

The manufacture of U.S. Tsubaki roller chains employs advanced, automated techniques. The specialized equipment used in each process ensures that all parts are uniform and high quality. The photo below shows the automated positioning of curled bushings.

4) Micron control has enabled U.S. Tsubaki to produce perfectly straight bushings and significantly reduce wear elongation during initial operation.

Preloading on Sprockets

Micron Control

Automated Manufacturing

A-2

U.S. TSUBAKI RS ROLLER CHAIN

APPLICATIONS

Roller chains can be operated at speeds of up to 10,000 rpm. Even at high speeds, chain drive is quieter and smoother than a gear drive. You never have to worry about slippage as you would with a belt.

Roller chains are inherently elastic. Compared with gear drives, they soften shock and absorb vibration. They can be used in machines which are subjected to great shock or which constantly move or vibrate. Both the machine's body and bearing parts are protected against damage.

For accurate high speed drives... automobile engines

For high speed and heavy load drives... oil-well drilling equipment

For heavy shock... draw benches

For precision drives... marine diesel engines

For long center distance drives... container straddle carriers

For severe conditions... tilting tables

For heavy shock... crawler drills For multi-shaft drives... roller tables

For high speed operation... pump drives

A-3

U.S. TSUBAKI RS ROLLER CHAIN

CONNECTION OF RS ROLLER CHAIN – IMPROVED

Roller chain is normally used as a continuous length with a connecting link, resulting in an even number of pitches. Connecting Links Standard connecting links are used when RS roller chain is operated under normal conditions. For severe applications, press fit connecting links are suggested. In either case, a spring clip connecting link is used for RS roller chains of sizes RS60 or smaller, a cottered connecting link for sizes RS80 to RS200, and a spring pin connecting link for RS240. A cottered type connecting link is used for three to six strands of RS40 to RS60. A cottered type can be provided for single and double strands of RS40 to RS60 upon request. Standard connecting links have a slip fit cover plate. The wider waist of U.S. Tsubaki's cover plates provides higher fatigue strength. Installation of press fit connecting links may be less convenient than that of standard connecting links, but performance is better. Press fit connecting links should be used in extremely high-speed or heavy duty applications. The slip fit connecting links on improved U.S. Tsubaki chain have 25% greater fatigue strength. These connecting links are ring coined, which means improved capacity for your application.

If a continuous length has an odd number of pitches, an offset link must be used. However, the use of offset links should be avoided. Offset Links Both two-pitch offset links and one-pitch offset links are available for RS roller chains. U.S. Tsubaki's redesigned link plate and improved manufacturing process make our two-pitch offset links stronger than ever. The two-pitch offset link is a combination of a roller link and an offset link connected with a riveted pin. The connecting link can be attached to either side of a two-pitch offset link. One-pitch offset links are very handy, but pin and offset link plates have to be slip-fitted. One-pitch offset links are also weaker than plain chain and two-pitch offset links. Therefore, one-pitch offset links are not suggested, especially for frequent on-and-off operation, heavy impact loads, and high-speed driving. Note: Only two-pitch offset links are available for RS25.

Two-Pitch Offset Link

Spring Clip Connecting Link

Cottered Connecting Link

One-Pitch Offset Link

Roller Chain A roller chain consists of roller links and pin links connected in series.

Roller Link

Roller Link Plate

Bushing Roller

Pin Link Plate

Pin Link

Pin Link Plate

A-4

U.S. TSUBAKI RS ROLLER CHAIN

CHAIN DIMENSIONS (inch)

Single Strand

U.S. TSUBAKI

Minimum Ultimate

Width

Strength Average Maximum ❈❈

Between

ANSI

Tensile

Allowable Number of

Roller

Roller Link Connecting

Plate

Standard Strength

Load lbs.

Links

Chain No.

ANSI No.

Page No.

Pitch

Diameter

Plates .072 .094 .125 .188 .134 .188 .250 .312 .375

Pin Length Thickness

lbs.

Per 10 ft.

RS11SS

— A-45 — A-45

.1475 .1875

.090 .098 .130 .200 .306 .306 .306 .312 .400 .469 .625 .750

.214 .272 .339 .500 .425 .496 .579 .717 .878

.015 .024 .030 .050 .040 .040 .050 .060 .080 .094

— 175 — 510

11 70

814 640 480 320 240 240 240 240 192 160 120

❈ ❈ ❈ ❈

RS15 RS25 RS 3 5

25 35

A-6 A-7

.250 .375

780

1,050

140 480 370 370 500 810

1,760 2,530 — 2,120 — 2,120 1,500 2,640 3,125 4,290

RS 3 7 (4 3 ) RS 38 (42)

— — .500 — — .500

RS41 RS40 RS50 RS60 RS 8 0

41 40 50 60 80

A-8 A-9

.500 .500 .625 .750

A-10 A-11

4,880 7,050 1,430 7,030 9,920 1,980

.500 1.087 .625 1.398 .750 1.678

A-12 1.000 A-13 1.250 A-14 1.500 A-15 1.750 A-16 2.000 A-17 2.250 A-18 2.500 A-19 3.000

.125 12,500 17,640 3,300 .156 19,530 26,460 5,070 .187 28,125 37,480 6,830 .219 38,280 48,510 9,040 .250 50,000 60,630 11,900 .281 63,280 80,480 13,670 .312 78,125 103,630 16,090 .375 112,500 152,140 22,270

RS100 RS120 RS140 RS160 RS1 8 0 RS200 RS240

100 120 140 160 180 200 240

96 80 68 60 54 48 40

.875 1.000 2.118 1.000 1.000 2.307 1.125 1.250 2.705 1.406 1.406 3.075 1.562 1.500 3.299 1.875 1.875 4.071

Rollerless Bushing Diameter Refer to page A-23, "Selection for Slow Speed."

❈

❈❈

A-5

RS25 1 / 4 ” Pitch

ANSI

Pitch

Bushing Diameter

Width

Link Plate

U.S. TSUBAKI

No.

Between Inner Link Plates

Diameter

Chain No.

RS25

.250

.130

.125

.030

.230

.199

.0905

❈

Number

Transverse

Standard Minimum Average Maximum Approx.

Number

U.S. TSUBAKI

Pitch

Type

Ultimate

Tensile

Allowable

Weight lbs./ft.

Strands

Strength Strength

Load lbs.

Links

ANSI

lbs.

per

Standard

10 ft.

L 1 + L 2

L 1

L 2

Chain No.

lbs.

RS25

1 2

.339 .591

.150 .276

.189 .315

Riveted 780 1,050 Riveted 1,560 2,100

140 240

.094 .181

.252

480

RS25-2

Note: Only two-pitch offset links are available for RS25 and RS25-2. Refer to page A-23, "Selection for Slow Speed." ❈

Maximum Horsepower Ratings

Maximum Speed – Small Sprocket (rpm)

No. of Teeth Small Spkt.

100 300 500 700 900 1200 1500 1800 2100 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000 7500 8000 8500 9000 10,000

Lubrication System

11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 28 30 32 35 40 45

0.03 0.03 0.04 0.04 0.04 0.04 0.05 0.05 0.05 0.06 0.06 0.06 0.06 0.07 0.07 0.07 0.08 0.08 0.09 0.10 0.12 0.13

0.05 0.06 0.06 0.07 0.08 0.08 0.09 0.09 0.10 0.10 0.11 0.11 0.12 0.13 0.13 0.14 0.15 0.16 0.17 0.19 0.22 0.25

0.14 0.16 0.17 0.19 0.20 0.22 0.23 0.25 0.26 0.28 0.29 0.31 0.32 0.34 0.35 0.37 0.40 0.43 0.44 0.51 0.58 0.64

0.23 0.25 0.27 0.30 0.32 0.34 0.37 0.39 0.41 0.44 0.46 0.48 0.51 0.53 0.55 0.56 0.63 0.66 0.71 0.78 0.90 1.03

0.31 0.34 0.37 0.40 0.43 0.47 0.48 0.53 0.56 0.59 0.60 0.64 0.67 0.72 0.75 0.76 0.83 0.90 0.98 1.06 1.22 1.39

0.39 0.43 0.47 0.50 0.54 0.58 0.60 0.64 0.68 0.72 0.76 0.80 0.84 0.90 0.94 0.98 1.05 1.13 1.21 1.33 1.53 1.74

0.50 0.55 0.60 0.65 0.68 0.74 0.79 0.84 0.89 0.94 0.99 1.05 1.10 1.14 1.19 1.25 1.35 1.46 1.56 1.72 1.98 2.25

0.60 0.66 0.72 0.78 0.84 0.90 0.97 1.02 1.09 1.15 1.21 1.27 1.34 1.39 1.46 1.53 1.65 1.78 1.90 2.11 2.43 2.76

0.71 0.78 0.84 0.94 0.99 1.06 1.14 1.21 1.29 1.35 1.42 1.50 1.57 1.65 1.72 1.80 1.94 2.09 2.25 2.48 2.86 3.25

0.83 0.90 0.98 1.06 1.14 1.22 1.30 1.38 1.48 1.56 1.64 1.73 1.81 1.89 1.98 2.07 2.24 2.41 2.59 2.84 3.29 3.73

0.95 1.05 1.14 1.23 1.33 1.43 1.53 1.62 1.72 1.82 1.92 2.01 2.12 2.21 2.32 2.41 2.61 2.82 3.02 3.33 3.85 4.37

1.13 1.23 1.34 1.46 1.57 1.69 1.80 1.92 2.02 2.15 2.27 2.37 2.49 2.61 2.72 2.84 3.08 3.33 3.57 3.93 4.53 5.15

1.29 1.42 1.54 1.68 1.81 1.93 2.07 2.20 2.33 2.47 2.60 2.74 2.87 3.00 3.14 3.27 3.54 3.82 4.09 4.51 5.20 5.91

1.38 1.57 1.74 1.89 2.04 2.19 2.33 2.48 2.63 2.78 2.92 3.08 3.23 3.38 3.54 3.69 4.00 4.30 4.61 5.08 5.87 6.66

1.16 1.32 1.49 1.66 1.84 2.03 2.22 2.42 2.62 2.83 3.05 3.27 3.50 3.73 3.93 4.10 4.44 4.79 5.14 5.65 6.53 7.42

0.99 1.12 1.27 1.42 1.57 1.73 1.90 2.07 2.24 2.42 2.60 2.79 2.98 3.18 3.38 3.59 4.01 4.45 4.90 5.60 6.85 8.15

0.86 0.97 1.10 1.23 1.36 1.50 1.64 1.79 1.94 2.10 2.26 2.42 2.59 2.76 2.93 3.11 3.47 3.85 4.25 4.86 5.93 7.08

0.75 0.86 0.96 1.08 1.20 1.32 1.44 1.57 1.70 1.84 1.98 2.12 2.27 2.42 2.57 2.73 3.05 3.38 3.73 4.26 5.21 6.21

0.67 0.76 0.86 0.96 1.06 1.17 1.28 1.39 1.51 1.63 1.76 1.88 2.01 2.15 2.28 2.42 2.70 3.00 3.30 3.78 4.62 5.51

0.60 0.68 0.77 0.86 0.95 1.05 1.14 1.25 1.35 1.46 1.57 1.69 1.80 1.92 2.04 2.17 2.42 2.68 2.96 3.38 4.13 4.93

0.54 0.61 0.69 0.77 0.86 0.94 1.03 1.12 1.22 1.32 1.42 1.52 1.62 1.73 1.84 1.95 2.18 2.42 2.67 3.05 3.73 4.45

0.49 0.56 0.63 0.70 0.78 0.86 0.94 1.02 1.11 1.20 1.29 1.38 1.47 1.57 1.67 1.77 1.98 2.20 2.42 2.77 3.38 4.04

0.45 0.51 0.57 0.64 0.71 0.78 0.86 0.93 1.01 1.09 1.17 1.26 1.35 1.44 1.53 1.62 1.81 2.01 2.21 2.53 3.09 3.69

0.41 0.47 0.53 0.59 0.65 0.72 0.79 0.86 0.93 1.00 1.08 1.16 1.24 1.32 1.40 1.49 1.66 1.84 2.03 2.32 2.83 3.38

0.35 0.40 0.45 0.50 0.56 0.61 0.67 0.73 0.79 0.86 0.92 0.99 1.06 1.12 1.20 1.27 1.42 1.57 1.73 1.98 2.42 2.89

A-6

U.S. TSUBAKI RS ROLLER CHAIN

RS35 3 / 8 ” Pitch

ANSI

Pitch

Bushing Diameter

Width

Link Plate

U.S. TSUBAKI

No.

Between Inner Link Plates

Diameter

Chain No.

RS 3 5

.375

.200

.188

.050

.354

.307

.141

Number

Transverse Standard Minimum Average Maximum Approx.

Number

❈

U.S. TSUBAKI

Pitch

Type

Ultimate

Tensile

Allowable

Weight lbs./ft.

Strands

Strength Strength

Load lbs.

Links

ANSI

lbs.

per

Standard

10 ft.

L 1 + L 2

L 1

L 2

Chain No.

lbs.

RS 3 5

1 2 3

.500 .898

.230 .429 .630

.270 .469 .665

.531 .965

Riveted 1,760 2,530 Riveted 3,520 5,060

480 810

.22 .46 .70

.399

320

RS 3 5-2 RS 3 5- 3

1.295

1.362

Riveted 5,280 7,590 1,200

Note: Refer to page A-23, "Selection for Slow Speed." ❈

Maximum Horsepower Ratings

Maximum Speed – Small Sprocket (rpm)

No. of Teeth Small Spkt.

100 300 500 700 900 1200 1500 1800 2100 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000 7500 8000 8500 9000 10,000

Lubrication System

0.16 0.17 0.19 0.20 0.21 0.23 0.25 0.27 0.28 0.30 0.31 0.32 0.35 0.36 0.38 0.39 0.43 0.46 0.50 0.54 0.63 0.71

0.30 0.32 0.35 0.38 0.40 0.43 0.47 0.50 0.52 0.55 0.58 0.62 0.64 0.67 0.70 0.74 0.79 0.86 0.91 1.01 1.17 1.33

0.78 0.86 0.94 1.01 1.09 1.17 1.25 1.33 1.41 1.49 1.57 1.65 1.73 1.81 1.89 1.97 2.13 2.31 2.47 2.72 3.14 3.57

1.23 1.35 1.48 1.60 1.72 1.85 1.97 2.09 2.23 2.35 2.48 2.60 2.74 2.86 2.99 3.12 3.38 3.65 3.90 4.30 4.98 5.65

1.66 1.84 2.00 2.16 2.33 2.49 2.67 2.84 3.02 3.18 3.35 3.53 3.70 3.88 4.05 4.22 4.57 4.93 5.28 5.82 6.73 7.64

2.09 2.29 2.51 2.71 2.92 3.14 3.35 3.57 3.77 4.00 4.21 4.43 4.64 4.85 5.08 5.30 5.74 6.18 6.62 7.31 8.44 9.57

2.71 2.98 3.25 3.51 3.80 4.06 4.33 4.61 4.89 5.16 5.44 5.73 6.01 6.29 6.57 6.87 7.43 8.01 8.58 9.45 10.9 12.4

3.31 3.63 3.97 4.30 4.63 4.96 5.30 5.65 5.98 6.32 6.66 7.00 7.35 7.70 8.05 8.39 9.09 9.79 10.5 11.6 13.4 15.2

3.90 4.29 4.68 5.07 5.46 5.85 6.25 6.64 7.04 7.44 7.84 8.25 8.66 9.07 9.48 9.88 10.7 11.5 12.4 13.7 15.7 17.8

4.48 4.92 5.38 5.82 6.26 6.72 7.17 7.63 8.09 8.56 9.01 9.48 9.95 10.4 10.9 11.4 12.3 13.2 14.2 15.7 18.1 20.5

3.86 4.40 4.96 5.55 6.16 6.77 7.42 8.09 8.77 9.47 10.2 10.9 11.6 12.2 12.7 13.3 14.3 15.6 16.6 18.4 21.2 24.0

2.92 3.35 3.75 4.21 4.65 5.10 5.59 6.09 6.60 7.13 7.67 8.31 8.88 9.47 10.1 10.7 11.9 13.2 14.6 16.6 20.4 24.3

2.32 2.66 2.99 3.34 3.70 4.08 4.47 4.87 5.28 5.70 6.13 6.58 7.05 7.50 7.99 8.46 9.48 10.5 11.5 13.2 16.1 19.3

1.90 2.17 2.45 2.72 3.03 3.34 3.66 3.98 4.32 4.67 5.02 5.38 5.77 6.13 6.54 6.92 7.75 8.57 9.44 10.8 13.2 15.8

1.58 1.82 2.05 2.29 2.53 2.80 3.06 3.34 3.62 3.90 4.21 4.51 4.83 5.15 5.48 5.81 6.49 7.17 7.91 9.07 11.1 13.2

1.35 1.56 1.74 1.96 2.17 2.39 2.61 2.84 3.08 3.34 3.59 3.85 4.13 4.39 4.66 4.96 5.55 6.14 6.76 7.72 9.45 11.3

1.18 1.35 1.50 1.70 1.88 2.07 2.27 2.47 2.68 2.90 3.11 3.34 3.58 3.80 4.05 4.30 4.81 5.32 5.86 6.71 8.19 9.79

1.03 1.18 1.33 1.49 1.65 1.82 1.98 2.17 2.35 2.53 2.72 2.92 3.14 3.34 3.57 3.77 4.22 4.67 5.14 5.87 7.19 8.60

0.91 1.05 1.17 1.31 1.46 1.61 1.77 1.92 2.09 2.25 2.41 2.60 2.79 2.96 3.16 3.34 3.74 4.14 4.56 5.22 6.37 7.63

0.82 0.94 1.05 1.18 1.31 1.43 1.58 1.72 1.86 2.01 2.17 2.33 2.49 2.64 2.82 2.99 3.35 3.70 4.08 4.67 5.70 6.83

0.74 0.84 0.94 1.06 1.18 1.30 1.42 1.54 1.68 1.82 1.96 2.09 2.25 2.39 2.55 2.70 3.02 3.34 3.67 4.21 5.14 0

0.67 0.76 0.86 0.97 1.07 1.18 1.29 1.41 1.53 1.65 1.77 1.90 2.04 2.17 2.31 2.45 2.74 3.03 3.34 3.82 4.67

0.60 0.70 0.78 0.87 0.98 1.07 1.18 1.29 1.38 1.50 1.62 1.74 1.86 1.98 2.11 2.24 2.51 2.76 3.04 3.49 0

0.56 0.64 0.72 0.80 0.90 0.99 1.07 1.18 1.27 1.41 1.49 1.60 1.72 1.82 1.94 2.05 2.31 2.53 2.80 3.21

11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 28 30 32 35 40 45

0.48 0.55 0.62 0.68 0.76 0.83 0.93 1.01 1.09 1.18 1.27 1.35 1.46 1.54 1.65 1.74 1.96 2.17

0 0

A-7

RS41 1 / 2 ” Pitch

ANSI

Pitch

Roller

Width

Link Plate

U.S. TSUBAKI

No.

Diameter

Between Roller Link Plates

Diameter

Chain No.

RS41

.500

.306

.250

.050

.386

.331

.141

Standard

Minimum Average

Maximum Approx.

Number

❈

U.S. TSUBAKI

Type

Ultimate Strength

Tensile Strength

Allowable

Weight lbs./ft.

Load lbs.

Links

ANSI

lbs.

per

Standard

10 ft.

L 1 + L 2

L 1

L 2

Chain No.

lbs.

RS41

.579

.266

.313

.594

Riveted

1,500

2,640

500

.27

240

Note: Refer to page A-23, "Selection for Slow Speed.” ❈

Maximum Horsepower Ratings

Maximum Speed – Small Sprocket (rpm)

No. of Teeth Small Spkt.

25 50 100 200 300 400 500 700 900 1000 1200 1400 1600 1800 2100 2400 2700 3000 3500 4000 5000 6000 7000 8000

Lubrication System

11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 28 30 32 35 40 45

0.04 0.04 0.04 0.05 0.05 0.05 0.07 0.07 0.07 0.07 0.08 0.08 0.08 0.09 0.09 0.09 0.11 0.11 0.12 0.13 0.16 0.17

0.09 0.09 0.11 0.11 0.12 0.13 0.13 0.15 0.16 0.16 0.17 0.19 0.19 0.20 0.21 0.23 0.24 0.25 0.28 0.31 0.35 0.40

0.16 0.19 0.20 0.21 0.23 0.24 0.25 0.28 0.29 0.31 0.32 0.35 0.36 0.38 0.40 0.42 0.44 0.48 0.51 0.58 0.66 0.75

0.31 0.34 0.36 0.39 0.43 0.46 0.48 0.52 0.55 0.58 0.62 0.64 0.67 0.71 0.74 0.76 0.83 0.90 0.97 1.06 1.23 1.39

0.58 0.63 0.68 0.74 0.79 0.84 0.91 0.97 1.02 1.09 1.14 1.19 1.26 1.31 1.38 1.43 1.55 1.68 1.80 1.98 2.29 2.60

0.82 0.90 0.98 1.06 1.14 1.22 1.31 1.39 1.47 1.55 1.65 1.73 1.81 1.90 1.98 2.06 2.24 2.41 2.59 2.85 3.30 3.74

1.06 1.17 1.27 1.37 1.47 1.58 1.69 1.80 1.90 2.02 2.13 2.22 2.35 2.45 2.57 2.68 2.91 3.12 3.36 3.70 4.26 4.85

1.30 1.42 1.55 1.68 1.81 1.94 2.08 2.20 2.33 2.47 2.60 2.73 2.87 3.00 3.14 3.28 3.55 3.82 4.10 4.52 5.21 5.92

1.76 1.93 2.10 2.28 2.45 2.63 2.80 2.98 3.16 3.34 3.52 3.70 3.89 4.07 4.25 4.44 4.81 5.17 5.55 6.11 7.06 8.03

2.20 2.41 2.63 2.85 3.07 3.30 3.51 3.74 3.97 4.20 4.41 4.64 4.87 5.11 5.33 5.56 6.03 6.49 6.96 7.67 8.86 10.1

2.27 2.59 2.90 3.14 3.38 3.62 3.86 4.11 4.36 4.61 4.85 5.11 5.36 5.60 5.86 6.11 6.62 7.13 7.65 8.43 9.73 11.1

1.71 1.95 2.20 2.46 2.73 3.01 3.29 3.59 3.89 4.24 4.56 4.88 5.21 5.56 5.91 6.27 7.01 7.77 8.56 9.80 11.5 13.0

1.36 1.55 1.75 1.95 2.17 2.39 2.61 2.86 3.10 3.33 3.59 3.85 4.11 4.38 4.66 4.94 5.52 6.13 6.75 7.72 9.43 11.3

1.11 1.27 1.43 1.60 1.77 1.95 2.14 2.33 2.53 2.73 2.94 3.15 3.37 3.59 3.81 4.05 4.52 5.01 5.52 6.32 7.72 9.21

0.93 1.06 1.20 1.34 1.49 1.64 1.79 1.95 2.12 2.29 2.46 2.64 2.82 3.01 3.20 3.39 3.79 4.20 4.63 5.29 6.47 7.72

0.74 0.84 0.95 1.06 1.18 1.30 1.42 1.55 1.68 1.81 1.95 2.09 2.24 2.39 2.54 2.69 3.01 3.33 3.67 4.20 5.13 6.13

0.61 0.69 0.78 0.87 0.96 1.06 1.16 1.27 1.38 1.49 1.60 1.71 1.83 1.95 2.08 2.20 2.46 2.73 3.01 3.44 4.20 5.01

0.51 0.58 0.65 0.73 0.81 0.89 0.98 1.06 1.15 1.24 1.34 1.44 1.54 1.64 1.74 1.85 2.06 2.29 2.52 2.88 3.52 4.20

0.43 0.49 0.56 0.62 0.69 0.76 0.83 0.91 0.98 1.06 1.14 1.23 1.31 1.40 1.49 1.58 1.76 1.95 2.15 2.46 3.01 3.59

0.34 0.39 0.44 0.49 0.55 0.60 0.66 0.72 0.78 0.84 0.91 0.97 1.04 1.11 1.18 1.25 1.40 1.55 1.71 1.95 2.39 2.85

0.28 0.32 0.36 0.40 0.45 0.49 0.54 0.59 0.64 0.69 0.74 0.80 0.85 0.91 0.96 1.02 1.14 1.27 1.40 1.60 1.95 2.33

0.20 0.23 0.26 0.29 0.32 0.35 0.39 0.42 0.46 0.49 0.53 0.57 0.61 0.65 0.69 0.73 0.82 0.91 1.00 1.14 1.40 0

0.15 0.17 0.20 0.22 0.24 0.27 0.29 0.32 0.35 0.38 0.40 0.43 0.46 0.49 0.53 0.56 0.62 0.69

0.12 0.14 0.16 0.17 0.19 0.21 0.23 0.25 0.28 0.30 0.32 0.34 0.37 0.39

0.10 0.11 0.13 0.14 0.16 0.17 0.19

0 0 0 0 0 0 0

0 0 0 0

0 0 0

Note: 1. For lubrication systems A, B & C, refer to page A-77 for explanation. Please consult U.S. Tsubaki for use of horsepower ratings to the right of the boundary line. 2. Refer to page A-22, “Procedures for Selecting Roller Chain.”

A-8

U.S. TSUBAKI RS ROLLER CHAIN

RS40 1 / 2 ” Pitch

ANSI

Pitch

Roller

Width

Link Plate

U.S. TSUBAKI

No.

Diameter

Between Roller Link Plates

Diameter

Chain No.

RS40

.500

.312

.060

.472

.409

.156

Number

Transverse Standard Minimum Average Maximum Approx.

Number

❈

U.S. TSUBAKI

Pitch

Type

Ultimate

Tensile

Allowable

Weight lbs./ft.

Strands

Strength Strength

Load lbs.

Links

ANSI

lbs.

per

Standard

10 ft.

L 1 + L 2

L 1

L 2

Chain No.

lbs.

RS40

1 2 3 4 5 6

.717

.325 .608 .892

.392 .675 .951

.709

Riveted 3,125 Riveted 6,250

4,290

810

.43 .85

RS40-2 RS40- 3 RS40-4 RS40-5 RS40-6

1.283 1.843

1.319 1.886 2.453 3.024 3.591

8,580 1,370

Riveted 9,375 12,870 2,020 Riveted 12,500 17,160 2,670 Riveted 15,625 21,450 3,150 Riveted 18,750 25,740 3,720

1.28 1.70 2.12 2.55

.566

240

2.409 1.177 1.232 2.980 1.461 1.519 3.547 1.744 1.803

Note: Refer to page A-23, "Selection for Slow Speed." ❈

Maximum Horsepower Ratings

Maximum Speed – Small Sprocket (rpm)

No. of Teeth Small Spkt.

25 50 100 200 300 400 500 700 900 1000 1200 1400 1600 1800 2100 2400 2700 3000 3500 4000 5000 6000 7000 8000

Lubrication System

0.50 0.58 0.64 0.71 0.79 0.87 0.97

11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 28 30 32 35 40 45

0.08 0.09 0.09 0.11 0.11 0.12 0.13 0.13 0.15 0.16 0.16 0.17 0.17 0.19 0.20 0.20 0.23 0.24 0.25 0.28 0.32 0.38

0.19 0.20 0.23 0.24 0.25 0.28 0.30 0.31 0.34 0.35 0.38 0.39 0.42 0.43 0.44 0.47 0.51 0.55 0.59 0.64 0.75 0.84

0.35 0.38 0.42 0.44 0.48 0.52 0.55 0.59 0.62 0.66 0.70 0.72 0.76 0.80 0.83 0.87 0.95 1.02 1.09 1.21 1.39 1.58

0.64 0.71 0.76 0.83 0.90 0.97 1.03 1.10 1.17 1.23 1.29 1.35 1.42 1.49 1.56 1.62 1.77 1.90 2.04 2.24 2.59 2.95

1.21 1.31 1.43 1.56 1.68 1.80 1.92 2.04 2.17 2.29 2.41 2.53 2.67 2.79 2.91 3.04 3.30 3.55 3.81 4.20 4.84 5.50

1.73 1.90 2.07 2.24 2.41 2.59 2.76 2.95 3.12 3.30 3.47 3.66 3.84 4.02 4.20 4.39 4.75 5.11 5.48 6.03 6.97 7.93

2.24 2.47 2.68 2.91 3.14 3.35 3.58 3.81 4.05 4.28 4.51 4.73 4.98 5.20 5.44 5.67 6.14 6.62 7.09 7.82 9.04 10.3

2.74 3.00 3.29 3.55 3.84 4.10 4.39 4.67 4.95 5.23 5.51 5.79 6.07 6.36 6.65 6.93 7.51 8.10 8.68 9.56 11.1 12.5

3.70 4.08 4.44 4.81 5.19 5.55 5.93 6.32 6.69 7.07 7.46 7.84 8.22 8.61 9.00 9.39 10.2 11.0 11.7 12.9 14.9 17.0

4.65 5.11 5.57 6.03 6.50 6.97 7.44 7.91 8.39 8.86 9.35 9.83 10.3 10.8 11.3 11.8 12.8 13.7 14.8 16.2 18.8 21.3

5.11 5.62 6.13 6.64 7.15 7.66 8.18 8.70 9.23 9.75 10.3 10.8 11.3 11.9 12.4 12.9 14.1 15.2 16.2 17.8 20.7 23.5

6.02 6.61 7.21 7.82 8.42 9.03 9.64 10.2 10.9 11.5 12.1 12.7 13.4 13.9 14.6 15.3 16.5 17.8 19.0 21.1 24.3 27.6

6.81 7.60 8.29 8.97 9.67 10.4 11.1 11.8 12.5 13.2 13.9 14.6 15.3 16.1 16.8 17.6 19.0 20.4 21.9 24.1 27.9 31.6

5.58 6.36 7.16 8.01 8.88 9.79 10.7 11.7 12.7 13.7 14.8 15.8 16.9 18.0 18.9 19.7 21.5 23.1 24.7 27.2 31.5 35.7

4.67 5.31 5.99 6.71 7.43 8.18 8.97 9.76 10.5 11.1 12.4 13.2 14.1 15.0 16.0 17.0 19.0 21.1 23.2 26.6 32.5 38.6

3.70 4.22 4.76 5.31 5.89 6.49 7.11 7.75 8.41 9.08 9.76 10.5 11.2 11.9 12.7 13.5 15.0 16.8 18.4 21.1 25.7 30.6

3.03 3.45 3.89 4.36 4.83 5.31 5.82 6.34 6.88 7.53 7.99 8.57 9.16 9.76 10.4 11.0 12.3 13.5 15.0 17.2 21.1 25.1

2.55 2.90 3.26 3.65 4.04 4.45 4.88 5.31 5.77 6.22 6.71 7.19 7.68 8.18 8.70 9.24 10.3 11.4 12.6 14.3 17.6 21.1

2.15 2.47 2.79 3.11 3.45 3.81 4.17 4.55 4.92 5.31 5.73 6.13 6.56 7.00 7.43 7.89 8.81 9.76 10.8 12.3 15.0 18.0

1.72 1.96 2.21 2.47 2.74 3.02 3.31 3.61 3.92 4.22 4.55 4.87 5.20 5.54 5.89 6.25 7.00 7.75 8.54 9.76 11.9 14.2

1.41 1.60 1.81 2.02 2.24 2.47 2.71 2.96 3.21 3.45 3.71 3.98 4.26 4.55 4.83 5.12 5.73 6.34 7.00 7.99 9.76 11.7

1.01 1.14 1.29 1.45 1.60 1.77 1.94 2.11 2.29 2.47 2.66 2.86 3.06 3.25 3.45 3.66 4.09 4.55 5.00 5.73 7.00 0

0.76 0.87 0.98 1.10 1.22 1.34 1.48 1.60 1.74 1.88 2.02 2.17 2.32 2.47 2.63 2.76 3.11 3.45

0.62 0.68 0.78 0.87 0.97 1.07 1.17 1.27 1.38 1.49 1.60 1.72 1.84 1.96

0 0 0 0 0 0 0

0 0 0 0

0 0 0

A-9

RS50 5 / 8 ” Pitch

ANSI

Pitch

Roller

Width

Link Plate

U.S. TSUBAKI

No.

Diameter

Between Roller Link Plates

Diameter

Chain No.

RS50

.625

.400

.375

.080

.591

.512

.200

Number

Transverse Standard Minimum Average Maximum Approx.

Number

❈

U.S. TSUBAKI

Pitch

Type

Ultimate

Tensile

Allowable

Weight lbs./ft.

Strands

Strength Strength

Load lbs.

Links

ANSI

lbs.

per

Standard

10 ft.

L 1 + L 2

L 1

L 2

Chain No.

lbs.

RS50

1 2 3 4 5 6

.878

.406 .762

.472

.886

Riveted 4,880

7,050 1,430

.70

RS50-2 RS50- 3 RS50-4 RS50-5 RS50-6

1.595

.833 1.646

Riveted 9,760 14,100 2,430 Riveted 14,640 21,150 3,570 Riveted 19,520 28,200 4,710 Riveted 24,400 35,250 5,570 Riveted 29,280 42,300 6,570

1.39 2.08 2.76 3.45 4.14

2.307 1.118 1.189 2.358 3.020 1.475 1.545 3.075 3.732 1.831 1.901 3.787 4.449 2.189 2.260 4.504

.713

192

Note: Refer to page A-23, "Selection for Slow Speed." ❈

Maximum Horsepower Ratings

Maximum Speed – Small Sprocket (rpm)

No. of Teeth Small Spkt.

25 50 100 200 300 400 500 700 900 1000 1200 1400 1600 1800 2100 2400 2700 3000 3500 4000 4500 5000 5500 6000

Lubrication System

11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 28 30 32 35 40 45

0.16 0.19 0.20 0.21 0.23 0.25 0.27 0.28 0.31 0.32 0.34 0.35 0.38 0.39 0.40 0.43 0.46 0.50 0.54 0.59 0.67 0.76

0.38 0.42 0.46 0.50 0.54 0.58 0.62 0.66 0.68 0.72 0.76 0.80 0.84 0.89 0.93 0.97 1.05 1.13 1.21 1.33 1.54 1.74

0.71 0.78 0.86 0.93 0.99 1.07 1.14 1.22 1.29 1.35 1.43 1.50 1.58 1.66 1.73 1.81 1.96 2.11 2.27 2.49 2.87 3.27

1.33 1.46 1.60 1.73 1.86 2.00 2.13 2.27 2.40 2.53 2.68 2.82 2.95 3.08 3.23 3.37 3.65 3.93 4.21 4.64 5.36 6.09

2.48 2.72 2.98 3.22 3.47 3.73 3.97 4.22 4.48 4.73 4.99 5.24 5.51 5.77 6.02 6.29 6.81 7.34 7.87 8.66 10.0 11.4

3.58 3.93 4.28 4.64 5.00 5.36 5.73 6.09 6.45 6.83 7.19 7.56 7.94 8.30 8.68 9.05 9.82 10.6 11.3 12.5 14.5 16.4

4.64 5.10 5.55 6.01 6.48 6.95 7.42 7.89 8.37 8.84 9.32 9.80 10.3 10.8 11.3 11.7 12.7 13.7 14.6 16.2 18.6 21.2

5.66 6.22 6.79 7.35 7.93 8.49 9.07 9.64 10.2 10.8 11.4 12.0 12.6 13.2 13.8 14.3 15.6 16.8 18.0 19.7 22.8 25.9

7.67 8.42 9.19 9.95 10.7 11.5 12.3 13.0 13.8 14.6 15.4 16.2 17.0 17.8 18.6 19.4 21.1 22.7 24.3 26.8 31.0 35.1

9.62 10.6 11.5 12.5 13.4 14.3 15.4 16.4 17.3 18.4 19.3 20.4 21.3 22.4 23.3 24.4 26.4 28.4 30.4 33.5 38.8 44.0

10.6 11.6 12.7 13.7 14.8 15.8 16.9 18.0 19.0 20.1 21.2 22.4 23.5 24.5 25.6 26.8 29.0 31.2 33.5 36.9 42.6 48.4

10.3 11.7 13.2 14.8 16.4 18.0 19.7 21.2 22.5 23.7 25.1 26.3 27.6 29.0 30.2 31.5 34.2 36.7 39.4 43.4 50.3 57.0

8.14 9.27 10.4 11.7 13.0 14.3 15.7 17.0 18.5 20.0 21.5 23.1 24.7 26.3 27.9 29.6 33.1 36.7 40.4 46.3 56.5 65.6

6.65 7.59 8.56 9.56 10.6 11.7 12.8 13.9 15.2 16.4 17.6 18.8 20.1 21.5 22.8 24.3 27.0 30.0 33.3 38.1 46.4 55.1

5.58 6.36 7.16 8.02 8.89 9.79 10.7 11.7 12.7 13.7 14.8 15.8 16.9 18.0 19.2 20.2 22.7 25.1 27.8 31.6 38.8 46.1

4.43 5.04 5.70 6.36 7.05 7.76 8.50 9.27 10.0 10.8 11.7 12.5 13.4 14.3 15.2 16.1 18.0 19.8 22.0 25.1 30.7 36.6

3.62 4.13 4.65 5.20 5.77 6.36 6.96 7.59 8.22 8.89 9.57 10.2 11.0 11.7 12.4 13.2 14.8 16.4 18.0 20.7 25.1 30.0

3.04 3.46 3.90 4.36 4.83 5.32 5.83 6.36 6.89 7.44 8.02 8.60 9.19 9.79 10.4 11.0 12.3 13.7 15.2 17.2 21.1 25.1

2.59 2.95 3.33 3.73 4.13 4.55 4.99 5.42 5.89 6.36 6.84 7.34 7.84 8.35 8.89 9.43 10.5 11.7 12.9 14.8 18.0 21.5

2.07 2.35 2.64 2.95 3.27 3.61 3.96 4.30 4.67 5.04 5.42 5.82 6.22 6.64 7.05 7.47 8.35 9.27 10.2 11.7 14.3 0

1.68 1.92 2.16 2.43 2.68 2.95 3.23 3.53 3.82 4.13 4.44 4.76 5.10 5.42 5.77 6.13 6.84 7.59 8.35 9.56 0

1.41 1.61 1.81 2.02 2.25 2.47 2.71 2.95 3.21 3.46 3.73 4.00 4.28 4.55 4.83 5.14 5.74

1.21 1.37 1.56 1.73 1.92 2.11 2.31 2.52 2.74 2.95 3.18 3.41

1.05 1.19 1.34 1.50 1.66 1.84 2.01

0.93 1.05

0 0 0 0 0

0 0 0

A-10

U.S. TSUBAKI RS ROLLER CHAIN

RS60 3 / 4 ” Pitch

ANSI

Pitch

Roller

Width

Link Plate

U.S. TSUBAKI

No.

Diameter

Between Roller Link Plates

Diameter

Chain No.

RS60

.750

.469

.500

.094

.713

.614

.234

Number

Transverse Standard Minimum Average Maximum Approx.

Number

❈

U.S. TSUBAKI

Pitch

Type

Ultimate

Tensile

Allowable

Weight lbs./ft.

Strands

Strength Strength

Load lbs.

Links

ANSI

lbs.

per

Standard

10 ft.

L 1 + L 2

L 1

L 2

Chain No.

lbs.

RS60

1 2 3 4 5 6

1.087 1.988

.506

.581

1.110 2.071 2.972 3.870 4.772 5.669

Riveted 7,030 9,920 1,980 Riveted 14,060 19,840 3,360 Riveted 21,090 29,760 4,950 Riveted 28,120 39,680 6,530 Riveted 35,150 49,600 7,720 Riveted 42,180 59,520 9,100

1.03 2.04 3.05 4.06 5.07 6.08

RS60-2 RS60- 3 RS60-4 RS60-5 RS60-6

.955 1.033

2.906 1.404 1.502 3.803 1.852 1.951 4.705 2.303 2.402 5.606 2.752 2.854

.897

160

Note: Refer to page A-23, "Selection for Slow Speed." ❈

Maximum Horsepower Ratings

Maximum Speed – Small Sprocket (rpm)

No. of Teeth Small Spkt.

25 50 100 150 200 300 400 500 600 700 800 900 1000 1100 1200 1400 1600 1800 2000 2500 3000 3500 4000 4500

Lubrication System

11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 28 30 32 35 40 45

0.30 0.32 0.35 0.39 0.42 0.44 0.47 0.51 0.54 0.56 0.59 0.63 0.66 0.68 0.72 0.75 0.82 0.87 0.94 1.03 1.19 1.35

0.67 0.74 0.80 0.87 0.94 1.01 1.09 1.15 1.22 1.29 1.35 1.42 1.50 1.57 1.64 1.72 1.85 2.00 2.15 2.36 2.72 3.10

1.26 1.38 1.52 1.64 1.76 1.89 2.01 2.15 2.28 2.40 2.53 2.67 2.79 2.92 3.06 3.19 3.46 3.73 4.00 4.40 5.08 5.77

2.35 2.59 2.82 3.06 3.29 3.53 3.77 4.00 4.24 4.48 4.73 4.98 5.22 5.46 5.71 5.95 6.45 6.95 7.46 8.21 9.48 10.8

3.39 3.71 4.06 4.40 4.73 5.08 5.42 5.77 6.12 6.46 6.81 7.16 7.51 7.87 8.22 8.58 9.29 10.0 10.7 11.8 13.7 15.6

4.39 4.81 5.26 5.70 6.13 6.57 7.03 7.47 7.91 8.37 8.82 9.28 9.74 10.2 10.6 11.1 12.0 13.0 13.9 15.3 17.7 20.1

6.32 6.95 7.58 8.21 8.84 9.47 10.1 10.8 11.4 12.1 12.7 13.4 14.1 14.6 15.3 16.0 17.3 18.6 20.0 22.1 25.5 29.0

8.19 9.00 9.80 10.6 11.5 12.3 13.1 13.9 14.8 15.6 16.5 17.3 18.1 19.0 19.8 20.8 22.4 24.1 25.9 28.6 33.0 37.5

10.0 11.0 12.0 13.0 13.9 15.0 16.0 17.0 18.1 19.0 20.1 21.2 22.3 23.2 24.3 25.3 27.5 29.6 31.8 35.0 40.4 45.9

11.8 13.0 14.1 15.3 16.5 17.7 18.9 20.1 21.3 22.5 23.7 24.9 26.1 27.4 28.6 29.9 32.3 34.9 37.4 41.2 47.6 54.0

13.5 14.9 16.2 17.6 18.9 20.2 21.7 23.1 24.4 25.9 27.2 28.7 30.0 31.5 32.9 34.3 37.1 40.1 42.9 47.3 54.6 62.1

15.3 16.8 18.2 19.8 21.3 22.9 24.4 26.0 27.6 29.1 30.7 32.3 33.9 35.5 37.1 38.8 42.0 45.2 48.4 53.4 61.6 70.0

17.0 18.6 20.4 22.0 23.7 25.5 27.2 29.0 30.7 32.5 34.2 35.9 37.7 39.4 41.2 43.0 46.7 50.2 53.8 59.3 68.5 77.8

15.6 17.8 20.1 22.4 24.8 27.4 29.9 31.8 33.7 35.7 37.5 39.4 41.4 43.3 45.3 47.3 51.2 55.3 59.1 65.2 75.4 85.6

13.5 15.6 17.4 19.4 21.6 23.7 26.0 28.3 30.7 33.1 35.7 38.2 40.9 43.6 46.4 49.2 55.0 60.2 64.5 71.1 82.1 93.2

11.9 13.5 15.2 17.0 18.8 20.9 22.9 24.9 27.1 29.2 31.5 33.8 36.1 38.2 40.6 43.2 48.3 53.5 58.9 67.5 82.3 98.3

9.41 10.7 12.1 13.5 15.0 16.5 18.1 19.7 21.5 23.1 24.8 26.6 28.4 30.3 32.2 34.2 38.2 42.4 46.7 53.4 65.7 78.4

7.70 8.77 9.90 11.1 12.3 13.5 14.8 16.1 17.6 18.9 20.2 21.9 23.3 24.8 26.4 28.0 31.4 34.7 38.2 43.7 53.5 63.7

6.45 7.35 8.30 9.27 10.3 11.3 12.4 13.5 14.6 15.8 17.0 18.2 19.4 20.8 22.1 23.5 26.1 29.1 32.1 36.6 44.8 53.4

5.51 6.29 7.08 7.91 8.77 9.67 10.6 11.5 12.5 13.5 14.5 15.6 16.8 17.8 18.9 20.0 22.4 24.8 27.4 31.4 38.2 45.6

3.94 4.49 5.07 5.66 6.29 6.92 7.58 8.26 8.96 9.67 10.4 11.1 11.9 12.7 13.5 14.3 16.0 17.8 19.6 22.4 27.4 32.6

3.00 3.42 3.85 4.32 4.77 5.26 5.77 6.29 6.81 7.35 7.91 8.49 9.08 9.67 10.3 10.9 12.2 13.5 14.9 17.0

2.39 2.71 3.06 3.42 3.80 4.17 4.57 4.99 5.40 5.83 6.29 6.73 7.19 7.67 8.15 8.55

1.94 2.23 2.51 2.80 3.10 3.42 3.74 4.08 4.43

1.64 1.86

0 0 0 0 0 0 0

0 0 0 0

0 0

A-11

RS80 1 ” Pitch

ANSI

Pitch

Roller

Width

Link Plate

U.S. TSUBAKI

No.

Diameter

Between Roller Link Plates

Diameter

Chain No.

RS 8 0

1.000

.625

.125

.949

.819

.312

Number

Transverse Standard Minimum Average Maximum Approx.

Number

❈

U.S. TSUBAKI

Pitch

Type

Ultimate

Tensile

Allowable

Weight lbs./ft.

Strands

Strength Strength

Load lbs.

Links

ANSI

lbs.

per

Standard

10 ft.

L 1 + L 2

L 1

L 2

Chain No.

lbs.

RS 8 0

1 2 3 4 5 6

1.398 2.552 3.704 4.862 6.020 7.170

.640

.758

1.417 2.657 3.815 4.972 6.126 7.280

Riveted 12,500 17,640 3,300 Riveted 25,000 35,280 5,610 Riveted 37,500 52,920 8,250 Riveted 50,000 70,560 10,890 Riveted 62,500 88,200 12,870

1.79 3.54 5.30 7.06 8.81

RS 8 0-2 RS 8 0- 3 RS 8 0-4 RS 8 0-5 RS 8 0-6

1.217 1.335 1.795 1.909 2.372 2.490 2.951 3.069 3.528 3.642

1.153

120

Riveted 75,000 105,840 15,180 10.57

Note: Refer to page A-23, "Selection for Slow Speed." ❈

Maximum Horsepower Ratings

Maximum Speed – Small Sprocket (rpm) 10 25 50 100 150 200 300 400 500 600 700 800 900 1000 1100 1200 1400 1600 1800 2000 2200 2400 2700 3000 3400 Lubrication System A B C

No. of Teeth Small Spkt.

Note: 1. Multiply the value given above by the multiple strand factor (page A-22, Table II) in order to obtain the transmission horsepower of multiple strand chain. 2. For lubrication systems A, B & C, refer to page A-77 for explanation. Please consult U.S. Tsubaki for use of horsepower ratings to the right of the boundary line. 3. Refer to page A-22, “Procedures for Selecting Roller Chain.” 28 2.42 5.53 10.3 19.2 27.7 35.9 51.7 67.0 81.9 93.9 93.9 93.9 93.3 79.7 69.1 60.6 48.1 39.4 33.0 28.2 24.4 21.4 30 2.61 5.95 11.1 20.7 29.9 38.7 55.7 72.2 88.3 104 104 104 104 88.4 76.6 67.2 53.4 43.7 36.6 31.2 27.1 23.8 32 2.80 6.38 11.9 22.2 32.0 41.5 59.8 77.4 94.6 112 114 114 114 97.4 84.4 74.1 58.8 48.1 40.3 34.4 29.8 26.2 35 3.08 7.03 13.1 24.5 35.3 45.7 65.8 85.3 104 123 130 130 130 111 96.5 84.7 67.2 55.0 46.1 39.4 34.1 40 3.56 8.12 15.2 28.3 40.8 52.8 76.0 98.5 120 142 153 153 153 136 118 104 82.1 67.2 56.3 48.1 20.0 45 4.04 9.23 17.2 32.1 46.3 60.0 86.4 112 137 161 174 174 174 162 141 124 98.0 80.2 67.2 54.2 11 0.88 2.02 3.76 7.02 10.1 13.1 18.9 24.4 29.9 30.3 30.3 27.4 23.0 19.6 17.0 14.9 11.8 9.70 8.13 6.94 6.01 5.28 4.42 3.78 1.70 12 0.97 2.21 4.13 7.71 11.1 14.4 20.7 26.8 32.8 33.4 33.3 31.2 26.2 22.4 19.4 17.0 13.5 11.0 9.26 7.90 6.85 6.01 5.04 4.30 13 1.06 2.41 4.50 8.40 12.1 15.7 22.6 29.3 35.8 36.3 36.3 35.2 29.5 25.2 21.9 19.2 15.2 12.5 10.4 8.91 7.73 6.78 5.68 4.85 14 1.15 2.61 4.88 9.10 13.1 17.0 24.5 31.7 38.8 39.4 39.4 39.4 33.0 28.2 24.4 21.4 17.0 13.9 11.7 9.96 8.63 7.58 6.35 5.42 15 1.23 2.82 5.26 9.81 14.1 18.3 26.4 34.2 41.8 43.7 43.7 43.7 36.6 31.2 27.1 23.8 18.9 15.4 12.9 11.0 9.58 8.40 7.04 6.01 16 1.32 3.02 5.64 10.5 15.1 19.6 28.3 36.6 44.8 48.1 48.1 48.1 40.3 34.4 29.8 26.2 20.8 17.0 14.3 12.2 10.5 9.26 7.76 6.62 17 1.41 3.22 6.02 11.2 16.2 21.0 30.2 39.1 47.8 56.3 52.7 52.7 44.2 37.7 32.7 28.7 22.8 18.6 15.6 13.3 11.6 10.1 8.50 7.26 18 1.50 3.43 6.40 11.9 17.2 22.3 32.1 41.6 50.8 57.4 57.4 57.4 48.1 41.1 35.6 31.2 24.8 20.3 17.0 14.5 12.6 11.0 9.26 7.90 19 1.59 3.64 6.79 12.7 18.2 23.6 34.0 44.1 53.9 61.7 61.7 61.7 52.2 44.5 38.6 33.9 26.9 22.0 18.4 15.7 13.7 12.0 10.0 8.57 20 1.68 3.84 7.17 13.4 19.3 25.0 36.0 46.6 57.0 65.3 65.3 65.3 56.3 48.1 41.7 36.6 29.0 23.8 19.9 17.0 14.7 12.9 10.8 21 1.78 4.05 7.56 14.1 20.3 26.3 37.9 49.1 60.0 68.8 68.8 68.8 60.6 51.8 44.9 39.4 31.2 25.6 21.4 18.3 15.9 13.9 11.7 22 1.87 4.26 7.95 14.8 21.4 27.7 39.9 51.7 63.1 72.3 72.3 72.3 65.0 55.5 48.1 42.2 33.5 27.4 23.0 19.6 17.0 14.9 12.5 23 1.96 4.47 8.34 15.6 22.4 29.0 41.8 54.2 66.2 75.9 75.9 75.9 69.5 59.3 51.4 45.1 35.8 29.3 24.6 21.0 18.2 16.0 13.4 24 2.05 4.68 8.73 16.3 23.5 30.4 43.8 56.7 69.4 79.5 79.5 79.5 74.1 63.2 54.8 48.1 38.2 31.2 26.2 22.4 19.4 17.0 14.3 25 2.14 4.89 9.13 17.0 24.5 31.8 45.8 59.3 72.5 83.0 83.0 83.0 78.7 67.2 58.3 51.1 40.6 33.2 27.8 23.8 20.6 18.1 15.2 26 2.24 5.10 9.52 17.8 25.6 33.2 47.8 61.9 75.6 86.6 86.6 86.6 83.5 71.3 61.8 54.2 43.0 35.2 29.5 25.2 21.9 19.2 16.1

A-12

U.S. TSUBAKI RS ROLLER CHAIN

RS100 1 1 / 4 ” Pitch

ANSI

Pitch

Roller

Width

Link Plate

U.S. TSUBAKI

No.

Diameter

Between Roller Link Plates

Diameter

Chain No. RS100

100

1.250

.750

.156

1.185

1.024

.375

Number

Transverse Standard Minimum Average Maximum Approx.

Number

❈

U.S. TSUBAKI

Pitch

Type

Ultimate

Tensile

Allowable

Weight lbs./ft.

Strands

Strength Strength

Load lbs.

Links

ANSI

lbs.

per

Standard

10 ft.

L 1 + L 2

L 1

L 2

Chain No. RS100 RS100-2 RS100- 3 RS100-4 RS100-5 RS100-6

lbs.

1 2 3 4 5 6

1.678

.778

.900

1.748 3.209 4.618 6.028 7.437 8.846

Cottered 19,530 26,460 5,070 Cottered 39,060 52,920 8,610 Cottered 58,590 79,380 12,670

2.68 5.27 7.91

3.090 1.484 1.606 4.504 2.191 2.313 5.914 2.896 3.018 7.326 3.602 3.724 8.740 4.309 4.431

1.408

Riveted 78,120 105,840 16,730 10.55 Riveted 97,650 132,300 19,770 13.12 Riveted 117,180 158,760 23,320 15.78

Note: Refer to page A-23, "Selection for Slow Speed." ❈

Maximum Horsepower Ratings

Maximum Speed – Small Sprocket (rpm) 10 25 50 100 150 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1600 1800 2000 2200 2400 2600 2700 Lubrication System A B C

No. of Teeth Small Spkt.

Note: 1. Multiply the value given above by the multiple strand factor (page A-22, Table II) in order to obtain the transmission horsepower of multiple strand chain. 2. For lubrication systems A, B & C, refer to page A-77 for explanation. Please consult U.S. Tsubaki for use of horsepower ratings to the right of the boundary line. 3. Refer to page A-22, “Procedures for Selecting Roller Chain.” 24 3.94 8.99 16.8 31.3 45.1 58.4 84.2 109 117 117 117 106 88.5 75.6 65.5 57.5 51.0 45.6 37.4 31.3 26.7 25 4.12 9.40 17.5 32.7 47.1 61.1 88.0 114 123 123 123 112 94.1 80.4 69.7 61.1 54.2 48.5 39.7 33.3 28.4 26 4.30 9.80 18.3 34.1 49.2 63.7 91.8 119 128 128 128 119 99.8 85.2 73.9 64.8 57.5 51.5 42.1 35.3 30.1 28 4.66 10.6 19.8 37.0 53.3 69.0 99.4 129 138 138 139 133 112 95.3 82.6 72.5 64.3 57.5 47.1 39.4 33.7 30 5.02 11.4 21.4 39.8 57.4 74.4 107 139 149 149 149 148 124 106 91.6 80.4 71.3 63.8 52.2 43.7 10.0 32 5.38 12.3 22.9 42.7 61.5 79.7 115 149 162 162 162 163 136 116 101 88.5 78.5 70.3 57.5 45.2 35 5.93 13.5 25.2 47.1 67.8 87.8 127 164 186 186 186 186 156 133 115 101 89.8 80.4 65.8 55.1 40 6.84 15.6 29.1 54.4 78.3 101 146 189 228 228 228 227 191 163 141 124 110 98.2 80.4 45 7.77 17.7 33.1 61.7 88.9 115 166 215 263 263 263 261 227 194 168 148 131 117 45.3 11 1.70 3.87 7.23 13.5 19.4 25.2 36.2 44.0 44.0 44.0 40.1 32.8 27.5 23.5 20.3 17.8 15.8 14.2 11.6 9.71 8.29 7.19 6.31 1.29 12 1.86 4.25 7.94 14.8 21.3 27.6 39.8 48.4 48.4 48.4 45.6 37.4 31.3 26.7 23.2 20.3 18.0 16.1 13.2 11.1 9.45 8.19 7.19 13 2.03 4.64 8.65 16.2 23.3 30.1 43.4 52.7 52.7 52.7 51.5 42.1 35.3 30.1 26.1 22.9 20.3 18.2 14.9 12.5 10.7 9.24 8.11 14 2.20 5.02 9.38 17.5 25.2 32.6 47.0 57.5 57.5 57.5 57.5 47.1 39.4 33.7 29.2 25.6 22.7 20.3 16.6 13.9 11.9 10.3 9.06 15 2.37 5.41 10.1 18.8 27.2 35.2 50.7 63.8 63.8 63.8 63.8 52.2 43.7 37.4 32.4 28.4 25.2 22.5 18.5 15.5 13.2 11.4 10.0 16 2.54 5.80 10.8 20.2 29.1 37.7 54.3 70.3 70.3 70.3 70.3 57.5 48.2 41.2 35.7 31.3 27.8 24.8 20.3 17.0 14.5 12.6 11.1 17 2.72 6.20 11.6 21.6 31.1 40.3 58.0 75.1 77.0 77.0 77.0 63.0 52.8 45.1 39.1 34.3 30.4 27.2 22.3 18.7 15.9 13.8 0.79 18 2.89 6.59 12.3 23.0 33.1 42.8 61.7 79.9 83.8 83.8 83.8 68.6 57.5 49.1 42.6 37.4 33.1 29.6 24.3 20.3 17.4 15.0 19 3.06 6.99 13.0 24.3 35.0 45.4 65.4 84.7 90.9 90.9 90.9 74.4 62.4 53.3 46.2 40.5 35.9 32.1 26.3 22.1 18.8 16.3 20 3.24 7.39 13.8 25.7 37.0 48.0 69.1 89.6 96.4 96.4 96.5 80.4 67.4 57.5 49.8 43.7 38.8 34.7 28.4 23.8 20.3 17.6 21 3.41 7.79 14.5 27.1 39.0 50.6 72.9 94.4 102 102 102 86.5 72.5 61.9 53.6 47.1 41.7 37.4 30.6 25.6 21.9 19.0 22 3.59 8.19 15.3 28.5 41.1 53.2 76.6 99.3 107 107 107 92.7 77.7 66.3 57.5 50.5 44.8 40.1 32.8 27.5 23.5 20.3 23 3.77 8.59 16.0 29.9 43.1 55.8 80.4 104 112 112 112 99.1 83.1 70.9 61.5 54.0 47.8 42.8 35.0 29.4 25.1 7.74

A-13

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