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
Boston Gear
40B45-1
-
mac
40B45-1 | Finished Bore Sprocket
Item #101853649
- 40 Chain, 45 Tooth, 1 in Bore, With Keyway and Setscrew

US Tsubaki Inc.
50B57F1 1/2
-
mac
50B57F1 1/2 | Finished Bore Sprocket
Item #105081552
- Finished Bore Sprocket for 50 Single Strand Chain
- 57 Teeth
- 1 1/2" Bore

Martin
80BS48 1 3/4
-
mac
80BS48 1 3/4 | Finished Bore Sprocket
Item #100810073
- 80 Chain Number
- 1 Strand
- 48 Teeth
- 15.857 in Outside Diameter
- 1.75 in Finished Bore

Martin
D80BS12HW 1 1/2
-
mac
D80BS12HW 1 1/2 | Finished Bore Sprocket
Item #100967648
- 80 Chain Number
- 2 Strands
- 12 Teeth
- 4.332 in Outside Diameter
- 1.5 in Finished Bore

Boston Gear
25B17-1/4
-
mac
25B17-1/4 | Finished Bore Sprocket
Item #101883368
- 25 Chain, 17 Tooth, 0.25 in Bore, No Keyway

Martin
80BS41 1 5/8
-
mac
80BS41 1 5/8 | Finished Bore Sprocket
Item #100810005
- 80 Chain Number
- 1 Strand
- 41 Teeth
- 13.625 in Outside Diameter
- 1.625 in Finished Bore

Martin
35BS70 7/8
-
mac
35BS70 7/8 | Finished Bore Sprocket
Item #100806766
- 35 Chain Number
- 1 Strand
- 70 Teeth
- 8.575 in Outside Diameter
- 0.875 in Finished Bore

Boston Gear
60B45-1 1/4
-
mac
60B45-1 1/4 | Finished Bore Sprocket
Item #101794626
- 60 Chain, 45 Tooth, 1.25 in Bore, With Keyway and Setscrew

Boston Gear
25B45-5/8
-
mac
25B45-5/8 | Finished Bore Sprocket
Item #101853526
- 25 Chain, 45 Tooth, 0.625 in Bore, No Keyway

US Tsubaki Inc.
40BS30HT 7/8
-
mac
40BS30HT 7/8 | Finished Bore Sprocket
Item #105090775
- Finished Bore Sprocket for 40 Single Strand Chain
- 30 Teeth
- 7/8" Bore
- w/ Hardened Teeth

Boston Gear
80B18-1 1/2
-
mac
80B18-1 1/2 | Finished Bore Sprocket
Item #101853604
- 80 Chain, 18 Tooth, 1.5 in Bore, With Keyway and Setscrew

Martin
60BS112 1 7/16
-
mac
60BS112 1 7/16 | Finished Bore Sprocket
Item #100808721
- 60 Chain Number
- 1 Strand
- 112 Teeth
- 27.181 in Outside Diameter
- 1.4375 in Finished Bore

Martin
50BS59 1 3/4
-
mac
50BS59 1 3/4 | Finished Bore Sprocket
Item #100808493
- 50 Chain Number
- 1 Strand
- 59 Teeth
- 12.102 in Outside Diameter
- 1.75 in Finished Bore

Martin
50BS80 1 1/4
-
mac
50BS80 1 1/4 | Finished Bore Sprocket
Item #100808525
- 50 Chain Number
- 1 Strand
- 80 Teeth
- 16.282 in Outside Diameter
- 1.25 in Finished Bore

Boston Gear
40B18-1 1/8
-
mac
40B18-1 1/8 | Finished Bore Sprocket
Item #101835859
- 40 Chain, 18 Tooth, 1.125 in Bore, With Keyway and Setscrew

US Tsubaki Inc.
80B38F1 3/8
-
mac
80B38F1 3/8 | Finished Bore Sprocket
Item #105088990
- Finished Bore Sprocket for 80 Single Strand Chain
- 38 Teeth
- 1 3/8" Bore

Martin
80BS15HT 1 3/16
-
mac
80BS15HT 1 3/16 | Finished Bore Sprocket
Item #100809663
- 80 Chain Number
- 1 Strand
- 15 Teeth
- 5.305 in Outside Diameter
- 1.1875 in Finished Bore

US Tsubaki Inc.
40B72F1
-
mac
40B72F1 | Finished Bore Sprocket
Item #105079867
- Finished Bore Sprocket for 40 Single Strand Chain
- 72 Teeth
- 1" Bore

Martin
80BS57 2 3/16
-
mac
80BS57 2 3/16 | Finished Bore Sprocket
Item #100965714
- 80 Chain Number
- 1 Strand
- 57 Teeth
- 18.725 in Outside Diameter
- 2.1875 in Finished Bore

Boston Gear
80B17-1 3/8
-
mac
80B17-1 3/8 | Finished Bore Sprocket
Item #101794639
- 80 Chain, 17 Tooth, 1.375 in Bore, With Keyway and Setscrew

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