Sprocket Catalog

No. 50

QD ® SPROCKET DIMENSIONS

U.S. TSUBAKI STOCK SPROCKETS

HOW TO ORDER

U.S. Tsubaki Stock Sprockets

All dimensions in inches unless noted.

Chain Data Size

No. 50 QD ® Sprocket Dia.

Dimensional Data QD® Sprockets

50

No. 50 5/8" Pitch: QD ®

No. Teeth

Outside Dia.

QD ® Bushing #

MAX Bore *

Hub Dia.

Hub Type

Hub Style

Weight Lbs.

LTB

X

Y

L

F

Pitch

5/8" 3/8"

Inside Width

12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 30 32 35 36 40 42 45 48 54 60 70 72 80 84 96

2.710 2.910 3.110 3.320 3.520 3.720 3.920 4.120 4.320 4.520 4.720 4.920 5.120 5.320 5.520 5.720 5.920 6.320 6.720 7.320 7.520 8.320 8.720 9.310 9.910

JA JA JA JA JA SH SH SH

1.250 1.922 0.625 1.125 1.125 0.656 2.063 1.250 2.063 0.625 1.125 1.125 0.656 2.063 1.250 2.125 0.625 1.125 1.125 0.656 2.063 1.250 2.250 0.625 1.125 1.125 0.656 2.063 1.250 2.250 0.625 1.125 1.125 0.656 2.063 1.688 2.750 0.813 1.437 1.437 0.906 2.688 1.688 2.875 0.813 1.437 1.437 0.906 2.688 1.688 3.000 0.813 1.437 1.437 0.906 2.688 2.000 3.313 0.750 1.500 1.500 0.969 3.188 2.000 3.500 0.750 1.500 1.500 0.969 3.188 2.000 3.500 0.750 1.500 1.500 0.969 3.188 2.000 3.500 0.750 1.500 1.500 0.969 3.188 2.000 3.625 0.750 1.500 1.500 0.969 3.188 2.000 3.625 0.750 1.500 1.500 0.969 3.188 2.000 3.625 0.750 1.500 1.500 0.969 3.188 2.000 3.625 0.750 1.500 1.500 0.969 3.188 2.000 3.625 0.750 1.500 1.500 0.969 3.188 2.000 3.625 0.750 1.500 1.500 0.969 3.188 2.000 3.625 0.750 1.500 1.500 0.969 3.188 2.000 3.625 0.750 1.500 1.500 0.969 3.188 2.000 3.625 0.750 1.500 1.500 0.969 3.188 2.000 3.625 0.750 1.500 1.500 0.969 3.188 2.000 3.625 0.750 1.500 1.500 0.969 3.188 2.000 3.625 0.750 1.500 1.500 0.969 3.188 2.000 3.625 0.750 1.500 1.500 0.969 3.188 2.625 3.625 1.250 2.125 2.125 1.531 3.875 2.625 4.250 1.250 2.125 2.125 1.531 3.875 2.625 4.250 1.250 2.125 2.125 1.531 3.875 2.625 4.250 1.250 2.125 2.125 1.531 3.875 2.938 5.000 1.250 2.250 2.250 1.656 4.625 2.938 5.000 1.250 2.250 2.250 1.656 4.625 2.938 5.000 1.250 2.250 2.250 1.656 4.625 2.938 5.000 1.250 2.250 2.250 1.656 4.625

B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B

S S S S S S S S S S S S E E E E E E E E E E E E E E E E E E E E E

0.34 0.40 0.52 0.60 0.68 0.84 1.04 1.24 1.20 1.32 1.42 1.58 1.70 1.86 2.00 2.12 2.32 2.64 2.98 3.62 3.64 4.74 5.40 5.90 6.66 9.68

Roller Diameter

0.400" 0.343"

Nominal Tooth Width:

A 50 SH 19 How to Order Code: Example Model # for 50 Pitch QD ® Carbon Steel Sprockets

SDS SDS SDS SDS SDS SDS SDS SDS SDS SDS SDS SDS SDS SDS SDS SDS SDS

Altered !!

Chain Pitch in Inches

Number of Teeth

QD ® Hub Type

12

14

16

JA: QD ® Hub 12 - 16 tooth sprocket

13

15

17

19

SH: QD ® Hub 17 - 19 tooth sprocket

18

20

24

28

36

48

21

25

30

40

SDS: QD ® Hub 20 - 48 tooth sprocket

A: Alteration Required

50: 5/8" Pitch

22

26

32

42

11.110 12.300 14.290 14.690 16.280 17.080 19.470 22.650

SK SK SK SK

23

27

35

45

11.88 15.52 16.44 19.90 22.98 29.88 40.10

54

70

SK: QD ® Hub 54 - 72 tooth sprocket

SF ** SF ** SF ** SF **

60

72

!! Alteration field only to be denoted if a deviation from standard required. Please reference alterations in engineering section

80

96

SF: QD ® Hub 80 - 112 tooth sprocket

112

84

112

!! Alteration field only to be denoted if a deviation from standard is required. Please reference Alterations in engineering section, page 210.

* Please reference QD ® bushing dimension table on page 196 for specific information on MAX Bore and keyway data. ** = Max Bore with shallow key

Y

Y

TOOTH (NOMINAL) .343˝ NOMINAL

TOOTH (NOMINAL) .343˝ NOMINAL

LTB

LTB

QD ® bushing is not included with the sprocket. They are to be ordered separately. Please refer to the table below for general guidelines. Specific details are found in the Bushing Section of this catalog beginning on page 188.

QD ® Bushings

Bushing #

Bore Range

JA SH

0.500 - 1.250" 0.500 - 1.688" 0.500 - 2.000" 0.500 - 2.625" 0.500 - 2.938"

L

L

SDS

SK SF

STYLEE TYPEB X

STYLES TYPEB X

www. ustsubaki .com

72

73

QD ® is a registered trademark of, and is used under license agreement from Emerson Electric Co.

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