RS80 1 ” Pitch
ANSI
Pitch
Roller
Width
Link Plate
Pin
U.S. TSUBAKI
No.
Diameter
Between Roller Link Plates
Diameter
P
R
W
T
H
h
D
Chain No.
RS 8 0
80
1.000
.625
.625
.125
.949
.819
.312
Number
Transverse Standard Minimum Average Maximum Approx.
Number
❈
U.S. TSUBAKI
of
Pin
Pitch
Type
Ultimate
Tensile
Allowable
Weight lbs./ft.
of
Strands
of
Strength Strength
Load lbs.
Links
Pin
ANSI
lbs.
per
Standard
10 ft.
L 1 + L 2
L 1
L 2
L
C
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
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