brand
- Martin 3,203
- US Tsubaki Inc. 2,730
- Altra Industrial Motion 904
- Boston Gear 904
- Regal Rexnord 154
- Browning 154
InchMetric
No of Strands Across
Hardened Teeth
US Tsubaki Inc.
80B50F1 3/16
-
mac
80B50F1 3/16 | Finished Bore Sprocket
Item #105074761
- Finished Bore Sprocket for 80 Single Strand Chain
- 50 Teeth
- 1 3/16" Bore

Martin
60BS44 1 5/8
-
mac
60BS44 1 5/8 | Finished Bore Sprocket
Item #100809183
- 60 Chain Number
- 1 Strand
- 44 Teeth
- 10.936 in Outside Diameter
- 1.625 in Finished Bore

Boston Gear
50B28-1 1/2
-
mac
50B28-1 1/2 | Finished Bore Sprocket
Item #101853879
- 50 Chain
- 28 Teeth
- 1 1/2" Bore
- 3/8 in x 3/16 in Keyway

Boston Gear
41B15 3/4
-
mac
41B15 3/4 | Finished Bore Sprocket
Item #101852895
- 41 Chain, 15 Tooth, 0.75 in Bore, With Keyway and Setscrew

Boston Gear
40B18-7/8
-
mac
40B18-7/8 | Finished Bore Sprocket
Item #101835006
- 40 Chain, 18 Tooth, 0.875 in Bore, With Keyway and Setscrew

Boston Gear
50B45-1 1/4
-
mac
50B45-1 1/4 | Finished Bore Sprocket
Item #101883449
- 50 Chain
- 45 Teeth
- 1 1/4" Bore
- 1/4 in x 1/8 in Keyway

Boston Gear
50B20-1 1/8
-
mac
50B20-1 1/8 | Finished Bore Sprocket
Item #101872013
- 50 Chain, 20 Tooth, 1.125 in Bore, With Keyway and Setscrew

Martin
40BS15 3/4
-
mac
40BS15 3/4 | No. 40 - 1/2" Pitch - Single - Bored to Size Sprocket
Item #100806966
- 40 Chain Number
- 1 Strand
- 15 Teeth
- 2.652 in Outside Diameter
- 0.75 in Finished Bore

US Tsubaki Inc.
40BS36 1 7/16
-
mac
40BS36 1 7/16 | No. 40 - 1/2" Pitch - Finished Bore Sprockets
Item #101624862
- Finished Bore Sprocket for 40 Single Strand Chain
- 36 Teeth
- 1 7/16" Bore
- w/ Hardened Teeth

Martin
60BS27 1 3/8
-
mac
60BS27 1 3/8 | Finished Bore Sprocket
Item #100808986
- 60 Chain Number
- 1 Strand
- 27 Teeth
- 6.867 in Outside Diameter
- 1.375 in Finished Bore

Martin
80BS28 1 1/2
-
mac
80BS28 1 1/2 | No. 80 - 1" Pitch - Single - Bored to Size Sprocket
Item #100809860
- 80 Chain Number
- 1 Strand
- 28 Teeth
- 9.475 in Outside Diameter
- 1.5 in Finished Bore

Boston Gear
80B18-1 5/8
-
mac
80B18-1 5/8 | Finished Bore Sprocket
Item #101796331
- 80 Chain, 18 Tooth, 1.625 in Bore, With Keyway and Setscrew

Martin
80BS17HT 1 3/8
-
mac
80BS17HT 1 3/8 | Finished Bore Sprocket
Item #100809708
- 80 Chain Number
- 1 Strand
- 17 Teeth
- 5.95 in Outside Diameter
- 1.375 in Finished Bore

Boston Gear
40B9-5/8
-
mac
40B9-5/8 | Finished Bore Sprocket
Item #101834739
- 40 Chain, 9 Tooth, 0.625 in Bore, With Keyway and Setscrew

Martin
50BS45 1 3/16
-
mac
50BS45 1 3/16 | Finished Bore Sprocket
Item #100808364
- 50 Chain Number
- 1 Strand
- 45 Teeth
- 9.313 in Outside Diameter
- 1.1875 in Finished Bore

Martin
40BS48 1 3/16
-
mac
40BS48 1 3/16 | Finished Bore Sprocket
Item #100807380
- 40 Chain Number
- 1 Strand
- 48 Teeth
- 7.929 in Outside Diameter
- 1.1875 in Finished Bore

Martin
40BS70 7/8
-
mac
40BS70 7/8 | Finished Bore Sprocket
Item #100807488
- 40 Chain Number
- 1 Strand
- 70 Teeth
- 11.433 in Outside Diameter
- 0.875 in Finished Bore

Boston Gear
80B13-1 3/8
-
mac
80B13-1 3/8 | Finished Bore Sprocket
Item #101794749
- 80 Chain, 13 Tooth, 1.375 in Bore, With Keyway and Setscrew

Boston Gear
41B24-3/4
-
mac
41B24-3/4 | Finished Bore Sprocket
Item #101836281
- 41 Chain, 24 Tooth, 0.75 in Bore, With Keyway and Setscrew

Martin
100BS20 2 15/16
-
mac
100BS20 2 15/16 | Finished Bore Sprocket
Item #100805887
- 100 Chain Number
- 1 Strand
- 20 Teeth
- 8.642 in Outside Diameter
- 2.9375 in Finished Bore

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