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
Martin
40BS24 1 3/8
-
mac
40BS24 1 3/8 | Finished Bore Sprocket
Item #100807130
- 40 Chain Number
- 1 Strand
- 24 Teeth
- 4.098 in Outside Diameter
- 1.375 in Finished Bore

Martin
80BS51 1 7/16
-
mac
80BS51 1 7/16 | Finished Bore Sprocket
Item #100965651
- 80 Chain Number
- 1 Strand
- 51 Teeth
- 16.813 in Outside Diameter
- 1.4375 in Finished Bore

Martin
40BS48 1 7/16
-
mac
40BS48 1 7/16 | Finished Bore Sprocket
Item #100807381
- 40 Chain Number
- 1 Strand
- 48 Teeth
- 7.929 in Outside Diameter
- 1.4375 in Finished Bore

Boston Gear
50B22-1 1/4
-
mac
50B22-1 1/4 | Finished Bore Sprocket
Item #101836616
- 50 Chain, 22 Tooth, 1.25 in Bore, With Keyway and Setscrew

Boston Gear
25B60-5/8
-
mac
25B60-5/8 | Finished Bore Sprocket
Item #101853894
- 25 Chain, 60 Tooth, 0.625 in Bore, No Keyway

Martin
80BS13 1 15/16
-
mac
80BS13 1 15/16 | No. 80 - 1" Pitch - Single - Bored to Size Sprocket
Item #100809602
- 80 Chain Number
- 1 Strand
- 13 Teeth
- 4.657 in Outside Diameter
- 1.9375 in Finished Bore

Martin
41BS20 5/8
-
mac
41BS20 5/8 | No. 41 - 1/2" Pitch - Single - Bored to Size Sprocket
Item #100807644
- 41 Chain Number
- 1 Strand
- 20 Teeth
- 3.457 in Outside Diameter
- 0.625 in Finished Bore

Boston Gear
40B30-7/8
-
mac
40B30-7/8 | Finished Bore Sprocket
Item #101796147
- 40 Chain, 30 Tooth, 0.875 in Bore, With Keyway and Setscrew

US Tsubaki Inc.
60BS54 2
-
mac
60BS54 2 | No. 60 - 3/4" Pitch - Finished Bore Sprockets
Item #101656494
- Finished Bore Sprocket for 60 Single Strand Chain
- 54 Teeth
- 2" Bore

US Tsubaki Inc.
100BS19 1 7/16
-
mac
100BS19 1 7/16 | Finished Bore Sprocket
Item #105089617
- Finished Bore Sprocket for 100 Single Strand Chain
- 19 Teeth
- 1 7/16" Bore

Boston Gear
40B25-1 1/4
-
mac
40B25-1 1/4 | Finished Bore Sprocket
Item #101835938
- 40 Chain, 25 Tooth, 1.25 in Bore, With Keyway and Setscrew

Boston Gear
50B15-7/8
-
mac
50B15-7/8 | Finished Bore Sprocket
Item #101836610
- 50 Chain, 15 Tooth, 0.875 in Bore, With Keyway and Setscrew

Boston Gear
25B12-5/16
-
mac
25B12-5/16 | Finished Bore Sprocket
Item #101793746
- 25 Chain, 12 Tooth, 0.3125 in Bore, No Keyway

Boston Gear
25B21-1/2
-
mac
25B21-1/2 | Finished Bore Sprocket
Item #101853737
- 25 Chain
- 21 Teeth
- 1/2" Bore
- 1/8 in x 1/16 in Keyway

Martin
80BS14HT 1 3/8
-
mac
80BS14HT 1 3/8 | Finished Bore Sprocket
Item #100809641
- 80 Chain Number
- 1 Strand
- 14 Teeth
- 4.981 in Outside Diameter
- 1.375 in Finished Bore

Martin
40BS72 1 1/4
-
mac
40BS72 1 1/4 | Finished Bore Sprocket
Item #100807491
- 40 Chain Number
- 1 Strand
- 72 Teeth
- 11.752 in Outside Diameter
- 1.25 in Finished Bore

US Tsubaki Inc.
80B44F2 15/16
-
mac
80B44F2 15/16 | Finished Bore Sprocket
Item #105089023
- Finished Bore Sprocket for 80 Single Strand Chain
- 44 Teeth
- 2 15/16" Bore

Martin
50BS23HT 1 3/8
-
mac
50BS23HT 1 3/8 | Finished Bore Sprocket
Item #100808131
- 50 Chain Number
- 1 Strand
- 23 Teeth
- 4.922 in Outside Diameter
- 1.375 in Finished Bore

Martin
41BS21 5/8
-
mac
41BS21 5/8 | Finished Bore Sprocket
Item #100807647
- 41 Chain Number
- 1 Strand
- 21 Teeth
- 3.617 in Outside Diameter
- 0.625 in Finished Bore

US Tsubaki Inc.
50B80F1 3/16
-
mac
50B80F1 3/16 | Finished Bore Sprocket
Item #105087670
- Finished Bore Sprocket for 50 Single Strand Chain
- 80 Teeth
- 1 3/16" Bore

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