TSUBAKI INTERCHANGE CHART The following provides and interchange guide overview for plain bore, finished bore, Taper-Lock®, and QD® sprockets versus competitors that are commonly stocked. For detailed information regarding any U.S. Tsubaki sprocket product offering, please visit www.ustsubaki.com .
Competitor "A" Sprocket Model #
U.S. Tsubaki Sprocket Model #
Description
40B17
40B17
ANSI 40 Pitch, B Type Hub, 17 Teeth, Hardened
50BS14HTx1 1 / 8 "
50B14F-1B
ANSI 50 Pitch, B Type Hub, 14 Teeth, Finished 11 / 8 " Bore, Hardened
60A21
60A21
ANSI 60 Pitch, "A" Plate, 21 Teeth, Hardened
41BTB26
41BTL26
ANSI 41 Pitch, B Type Hub, Taper-Lock®, 26 Teeth, Hardened
80SK17H
80SK17
ANSI 80 Pitch, QD® Style Hub, 17 Teeth, Hardened
D40B23H
D40B23
Multi-Strand ANSI 40 Pitch, B Type Hub, Hardened
D50ATB20H
D50BTL20 Multi-Strand ANSI 50 Pitch, B Type Hub, Taper-Lock®, 20 Teeth Hardened
The following table should be used to define the hub bore size associated with "Finished Bore" stock sprocket product. Note that a letter designator is used to represent a fractional dimension. For example, a -1B hub bore equates to a sprocket hub inside diameter of 1.125". FRACTION LEGEND FOR HUB BORE SIZE Letter Designator Fractional Size Decimal Size A 1 / 16" 0.0625" B 1 / 8" 0.1250" C 3 / 16" 0.1875" D 1 / 4" 0.2500" E 5 / 16" 0.3125" F 3 / 8" 0.3750" G 7 / 16" 0.4375" H 1 / 2" 0.5000" I 9 / 16" 0.5625" J 5 / 8" 0.6250" K 11 / 16" 0.6875" L 3 / 4" 0.7500" M 13 / 16" 0.8125" P 7 / 8" 0.8750" R 15 / 16" 0.9375"
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