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.
50B49F1 1/2
-
mac
50B49F1 1/2 | Finished Bore Sprocket
Item #105072630
- Finished Bore Sprocket for 50 Single Strand Chain
- 49 Teeth
- 1 1/2" Bore

Boston Gear
50B18-1 1/4
-
mac
50B18-1 1/4 | Finished Bore Sprocket
Item #101852475
- 50 Chain, 18 Tooth, 1.25 in Bore, With Keyway and Setscrew

Martin
80BS54 1 15/16
-
mac
80BS54 1 15/16 | Finished Bore Sprocket
Item #100965677
- 80 Chain Number
- 1 Strand
- 54 Teeth
- 17.769 in Outside Diameter
- 1.9375 in Finished Bore

Martin
80BS34 1 7/16
-
mac
80BS34 1 7/16 | Finished Bore Sprocket
Item #100809931
- 80 Chain Number
- 1 Strand
- 34 Teeth
- 11.392 in Outside Diameter
- 1.4375 in Finished Bore

Boston Gear
40B19-1 7/16
-
mac
40B19-1 7/16 | Finished Bore Sprocket
Item #101836485
- 40 Chain, 19 Tooth, 1.4375 in Bore, With Keyway and Setscrew

Martin
40BS24 1 1/4
-
mac
40BS24 1 1/4 | No. 40 - 1/2" Pitch - Single - Bored to Size Sprocket
Item #100807127
- 40 Chain Number
- 1 Strand
- 24 Teeth
- 4.098 in Outside Diameter
- 1.25 in Finished Bore

Boston Gear
25B14-1/4
-
mac
25B14-1/4 | Finished Bore Sprocket
Item #101883414
- 25 Chain
- 14 Teeth
- 1/4" Bore
- No Keyway

Boston Gear
41B14-1/2
-
mac
41B14-1/2 | Finished Bore Sprocket
Item #101834846
- 41 Chain, 14 Tooth, 0.5 in Bore, With Keyway and Setscrew

Martin
50BS70 1 1/4
-
mac
50BS70 1 1/4 | Finished Bore Sprocket
Item #100808507
- 50 Chain Number
- 1 Strand
- 70 Teeth
- 14.292 in Outside Diameter
- 1.25 in Finished Bore

US Tsubaki Inc.
50BS25 3/4
-
mac
50BS25 3/4 | No. 50 - 5/8" Pitch - Finished Bore Sprockets
Item #101624339
- Finished Bore Sprocket for 50 Single Strand Chain
- 25 Teeth
- 3/4" Bore

Martin
41BS25 1
-
mac
41BS25 1 | Finished Bore Sprocket
Item #100807657
- 41 Chain Number
- 1 Strand
- 25 Teeth
- 4.258 in Outside Diameter
- 1 in Finished Bore

Martin
60BS21 1 1/4
-
mac
60BS21 1 1/4 | No. 60 - 3/4" Pitch - Single - Bored to Size Sprocket
Item #100808919
- 60 Chain Number
- 1 Strand
- 21 Teeth
- 5.426 in Outside Diameter
- 1.25 in Finished Bore

Boston Gear
80B14-1 5/8
-
mac
80B14-1 5/8 | Finished Bore Sprocket
Item #101852894
- 80 Chain, 14 Tooth, 1.625 in Bore, With Keyway and Setscrew

Boston Gear
60B30-1-1/2
-
mac
60B30-1-1/2 | Finished Bore Sprocket
Item #101853272
- 60 Chain, 30 Tooth, 1.5 in Bore, With Keyway and Setscrew

Martin
100BS10 1 3/16
-
mac
100BS10 1 3/16 | Finished Bore Sprocket
Item #100805824
- 100 Chain Number
- 1 Strand
- 10 Teeth
- 4.597 in Outside Diameter
- 1.1875 in Finished Bore

Martin
40BS12 5/8
-
mac
40BS12 5/8 | No. 40 - 1/2" Pitch - Single - Bored to Size Sprocket
Item #100806932
- 40 Chain Number
- 1 Strand
- 12 Teeth
- 2.166 in Outside Diameter
- 0.625 in Finished Bore

Martin
50BS18 1 3/16
-
mac
50BS18 1 3/16 | No. 50 - 5/8" Pitch - Single - Bored to Size Sprocket
Item #100808025
- 50 Chain Number
- 1 Strand
- 18 Teeth
- 3.92 in Outside Diameter
- 1.1875 in Finished Bore

US Tsubaki Inc.
50B70F1 1/2
-
mac
50B70F1 1/2 | Finished Bore Sprocket
Item #105079057
- Finished Bore Sprocket for 50 Single Strand Chain
- 70 Teeth
- 1 1/2" Bore

US Tsubaki Inc.
100BS19 2 3/16
-
mac
100BS19 2 3/16 | Finished Bore Sprocket
Item #105090345
- Finished Bore Sprocket for 100 Single Strand Chain
- 19 Teeth
- 2 3/16" Bore

Martin
35BS21HT 3/4
-
mac
35BS21HT 3/4 | Finished Bore Sprocket
Item #100806630
- 35 Chain Number
- 1 Strand
- 21 Teeth
- 2.713 in Outside Diameter
- 3/4 in Finished Bore

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