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Finished Bore Sprockets

Finished bore sprockets are roller chain sprockets featuring a precisely machined bore with a keyway and set screws for secure and accurate shaft fitment. They are used in power transmission systems and machinery to transmit mechanical power between rotating shafts in various industrial applications, such as conveyor systems and material handling equipment. Finished bore sprockets are available in various sizes, materials, and tooth configurations to accommodate different chain sizes, torque requirements, and operating conditions.
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Item
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#153721
096167
Dodge 096167 50TT626 TORQUE-TAMER overload protection sprocket for #50 chain. Roller chain clutch provides automatic reset after overload events. Non-asbestos friction discs with easy-set adjustment. 2.7 lb weight.
Brand Dodge
Model 096167
$142.01 Each
Free Shipping orders over $100
#153733
096175
Dodge 096175 70TT635 TORQUE-TAMER overload protection clutch sprocket for #70 roller chain. Automatic reset after overload. Non-asbestos friction discs. Easy set adjustment. 4.93 lb weight.
Brand Dodge
Model 096175
$199.94 Each
Free Shipping orders over $100
#256817
D80BS12HW 1 1/2
Martin D80BS12HW 1 1/2 double strand roller chain sprocket for #80 chain (1" pitch) with 12 teeth, Bored-to-Size (BS) finished bore, winch configuration (keyway at 90°), hardened Saber Teeth, 1-1/2" bore, keyway and two setscrews, steel construction.
Brand Martin Sprocket
Model D80BS12HW 1 1/2
$178.87 Each
Free Shipping orders over $100
#256818
D80BS12HW 1 1/4
Martin D80BS12HW 1 1/4 double strand roller chain sprocket for #80 chain (1" pitch). Bored-to-Size (BS) finished bore with keyway and setscrews, 12 teeth, 1-1/4" bore, winch configuration, hardened teeth (Saber Tooth). Steel construction.
Brand Martin Sprocket
Model D80BS12HW 1 1/4
$178.87 Each
Free Shipping orders over $100
#258568
100BS11 2
Martin 100BS11 2 Bored-to-Size (Type B Finished Bore) sprocket for #100 roller chain (1-1/4" pitch). 11 teeth, 2" finished bore with keyway and setscrews. Steel construction. Direct replacement for industry-standard sprockets.
Brand Martin Sprocket
Model 100BS11 2
$160.34 Each
Free Shipping orders over $100
#258575
100BS12 2
Martin 100BS12 2 Bored-to-Size (Type B Finished Bore) roller chain sprocket for #100 chain (1-1/4" pitch). 12 teeth, 2" finished bore with keyway and setscrews. Steel construction. Outside diameter: 5.415".
Brand Martin Sprocket
Model 100BS12 2
$172.16 Each
Free Shipping orders over $100
#258582
100BS13 2
Martin 100BS13 2 Bored-to-Size roller chain sprocket for #100 chain (1-1/4" pitch). 13 teeth, 2" finished bore with keyway and setscrews. Steel construction, 5.821" OD. Type B with hub one side.
Brand Martin Sprocket
Model 100BS13 2
$184.15 Each
Free Shipping orders over $100
#258599
100BS16 2 7/16
Martin 100BS16 2 7/16 Type B Finished Bore roller chain sprocket for #100 chain (1-1/4" pitch). 16 teeth, 2-7/16" finished bore with keyway and setscrews. Steel construction, hub on one side. Outside diameter 7.034".
Brand Martin Sprocket
Model 100BS16 2 7/16
$225.06 Each
Free Shipping orders over $100
#258647
100BS24 2 7/16
Martin 100BS24 2 7/16 roller chain sprocket, #100 chain (1-1/4" pitch), 24 teeth, 2-7/16" finished bore with keyway and setscrews. Type B one-hub design, steel construction. For ANSI B29.1 standard roller chain drives.
Brand Martin Sprocket
Model 100BS24 2 7/16
$297.78 Each
Free Shipping orders over $100
#260808
35BS10 1/2
Martin 35BS10 1/2 is a Type B Finished Bore roller chain sprocket for #35 chain (3/8" pitch). It has 10 teeth and a 1/2" finished bore with keyway and two setscrews. The sprocket is made of steel and has an outside diameter of 1.379".
Brand Martin Sprocket
Model 35BS10 1/2
$18.78 Each
Free shipping
#260846
35BS15 1
Martin 35BS15 1 Bored-to-Size roller chain sprocket for #35 chain (3/8" pitch). 15 teeth, 1" finished bore with keyway and setscrews. Steel construction for general power transmission applications.
Brand Martin Sprocket
Model 35BS15 1
$21.26 Each
Free shipping
#260990
35BS36 3/4
Martin 35BS36 3/4 is a Type B finished bore roller chain sprocket for #35 chain (3/8" pitch). It has 36 teeth, a 3/4" finished bore with keyway and two setscrews, and an outside diameter of 4.511". The sprocket is made of steel.
Brand Martin Sprocket
Model 35BS36 3/4
$69.72 Each
Free shipping
#261005
35BS42 5/8
Martin 35BS42 5/8 Bored-to-Size roller chain sprocket for #35 chain (3/8" pitch). 42 teeth, 5/8" finished bore with keyway and setscrews. Type B hub one side, steel construction. For power transmission drives.
Brand Martin Sprocket
Model 35BS42 5/8
$73.56 Each
Free shipping
#261285
40BS10 3/4
Martin 40BS10 3/4 Bored-to-Size roller chain sprocket for #40 chain (1/2" pitch). 10 teeth, 3/4" finished bore with keyway and setscrews. Steel construction. Type B hub one side. Direct replacement for industry-standard sprockets.
Brand Martin Sprocket
Model 40BS10 3/4
$21.26 Each
Free shipping
#261304
40BS12 1
Martin 40BS12 1 is a Type B Finished Bore roller chain sprocket for #40 chain (1/2" pitch). It has 12 teeth and a 1" finished bore with keyway and setscrews. The outside diameter is 2.166". Constructed from steel, this sprocket is suitable for power transmission applications requiring a single-strand #40 chain drive.
Brand Martin Sprocket
Model 40BS12 1
$24.33 Each
Free shipping
#261306
40BS12 3/4
Martin 40BS12 3/4 Bored-to-Size (Type B) roller chain sprocket for #40 chain (1/2" pitch). 12 teeth, 3/4" finished bore with keyway and two setscrews. Steel construction. Direct replacement for industry-standard sprockets.
Brand Martin Sprocket
Model 40BS12 3/4
$24.33 Each
Free shipping
#261336
40BS15 1
Martin 40BS15 1 Bored-to-Size (Type B) roller chain sprocket for #40 chain (1/2" pitch). 15 teeth, 1" finished bore with keyway and two setscrews. Steel construction for general power transmission applications.
Brand Martin Sprocket
Model 40BS15 1
$28.93 Each
Free shipping
#261352
40BS16 1
Martin 40BS16 1 Bored-to-Size (Type B Finished Bore) sprocket for #40 roller chain (1/2" pitch). 16 teeth, 1" finished bore with keyway and setscrews. Steel construction. Direct replacement for industry-standard sprockets.
Brand Martin Sprocket
Model 40BS16 1
$30.65 Each
Free shipping
#261366
40BS17 1
Martin 40BS17 1 is a Bored-to-Size (Type B) roller chain sprocket for #40 chain (1/2" pitch). It has 17 teeth and a 1" finished bore with keyway and two setscrews. The outside diameter is 2.975". This steel sprocket is suitable for power transmission applications requiring a single-strand finished bore sprocket.
Brand Martin Sprocket
Model 40BS17 1
$32.37 Each
Free shipping
#261380
40BS18 1
Martin 40BS18 1 Bored-to-Size (Type B Finished Bore) sprocket for #40 roller chain (1/2" pitch). 18 teeth, 1" finished bore with keyway and two setscrews. Steel construction. Direct replacement for industry-standard sprockets.
Brand Martin Sprocket
Model 40BS18 1
$34.09 Each
Free shipping
#261387
40BS18 3/4
Martin 40BS18 3/4 Bored-to-Size roller chain sprocket for #40 chain (1/2" pitch). 18 teeth, 3/4" finished bore with keyway and setscrews. Type B hub one side, steel construction. Direct replacement for industry-standard sprockets.
Brand Martin Sprocket
Model 40BS18 3/4
$34.09 Each
Free shipping
#261420
40BS20 1
Martin 40BS20 1 Bored-to-Size roller chain sprocket for #40 chain (1/2" pitch). 20 teeth, 1" finished bore with keyway and setscrews. Steel construction for general power transmission applications.
Brand Martin Sprocket
Model 40BS20 1
$43.48 Each
Free shipping
#261423
40BS20 1 1/8
Martin 40BS20 1 1/8 Bored-to-Size (Type B Finished Bore) sprocket for #40 roller chain (1/2" pitch). 20 teeth, 1-1/8" finished bore with keyway and two setscrews. Steel construction. Outside diameter: 3.457".
Brand Martin Sprocket
Model 40BS20 1 1/8
$43.48 Each
Free shipping
#261440
40BS21 1
Martin 40BS21 1 is a Bored-to-Size (Type B) roller chain sprocket for #40 chain (1/2" pitch). It has 21 teeth and a 1" finished bore with keyway and two setscrews. The outside diameter is 3.617". This steel sprocket is suitable for power transmission applications requiring a single-strand finished bore sprocket.
Brand Martin Sprocket
Model 40BS21 1
$47.31 Each
Free shipping
#261460
40BS22 1
Martin 40BS22 1 Bored-to-Size (Type B Finished Bore) roller chain sprocket for #40 chain (1/2" pitch). 22 teeth, 1" finished bore with keyway and setscrews. Steel construction. Outside diameter: 3.778".
Brand Martin Sprocket
Model 40BS22 1
$51.91 Each
Free shipping
#261589
40BS30 1
Martin 40BS30 1 Bored-to-Size (Type B Finished Bore) sprocket for #40 roller chain (1/2" pitch). 30 teeth, 1" finished bore with keyway and setscrews. Steel construction. Outside diameter: 5.057".
Brand Martin Sprocket
Model 40BS30 1
$89.06 Each
Free shipping
#261615
40BS32 1
Martin 40BS32 1 is a Type B Finished Bore roller chain sprocket for #40 chain (1/2" pitch). It has 32 teeth and a 1" finished bore with keyway and two setscrews. The outside diameter is 5.377". Constructed from steel, this sprocket is suitable for power transmission applications requiring a single-strand #40 chain drive.
Brand Martin Sprocket
Model 40BS32 1
$90.41 Each
Free shipping
#261687
40BS40 1
Martin 40BS40 1 is a Type B Finished Bore roller chain sprocket for #40 chain (1/2 in. pitch). It has 40 teeth, a 1" finished bore with keyway and two setscrews, and an outside diameter of 6.653". Constructed from steel, this sprocket is suitable for general power transmission applications.
Brand Martin Sprocket
Model 40BS40 1
$82.75 Each
Free shipping
#261703
40BS42 1
Martin 40BS42 1 Bored-to-Size (BS) roller chain sprocket for #40 chain (1/2" pitch). 42 teeth, 1" finished bore with keyway and setscrews. Type B hub one side. Steel construction. Outside diameter 6.972". For power transmission drives.
Brand Martin Sprocket
Model 40BS42 1
$84.28 Each
Free shipping
#261751
40BS48 1
Martin 40BS48 1 Bored-to-Size (Type B Finished Bore) sprocket for #40 roller chain (1/2" pitch). 48 teeth, 1" finished bore with keyway and setscrews. Steel construction. Outside diameter: 7.929".
Brand Martin Sprocket
Model 40BS48 1
$88.61 Each
Free shipping
#261818
40BS56 1 1/4
Martin 40BS56 1 1/4 Bored-to-Size (BS) roller chain sprocket for #40 chain (1/2" pitch). 56 teeth, 1-1/4" finished bore with keyway and two setscrews. Steel construction, Type B one-hub design, 9.203" OD. Direct replacement for industry-standard
Brand Martin Sprocket
Model 40BS56 1 1/4
$96.33 Each
Free shipping
#261848
40BS60 1
Martin 40BS60 1 Bored-to-Size roller chain sprocket for #40 chain (1/2" pitch). 60 teeth, 1" finished bore with keyway and setscrews. Steel construction for industrial drives and conveyors.
Brand Martin Sprocket
Model 40BS60 1
$99.57 Each
Free shipping
#261849
40BS60 1 1/2
Martin 40BS60 1 1/2 Bored-to-Size (Type B Finished Bore) roller chain sprocket for #40 chain (1/2" pitch). 60 teeth, 1-1/2" finished bore with keyway and setscrews. Steel construction, 9.841" OD. Stock sprocket for power transmission drives.
Brand Martin Sprocket
Model 40BS60 1 1/2
$99.57 Each
Free shipping
#261864
40BS72 1
Martin 40BS72 1 is a Bored-to-Size (Type B) roller chain sprocket for #40 chain (1/2" pitch). It features 72 teeth, a 1" finished bore with keyway and two setscrews, and an outside diameter of 11.752". Constructed from steel, this sprocket is suitable for power transmission applications requiring a single-strand finished bore sprocket.
Brand Martin Sprocket
Model 40BS72 1
$119.64 Each
Free Shipping orders over $100
#261866
40BS72 1 1/4
Martin 40BS72 1 1/4 Type B Finished Bore roller chain sprocket for #40 chain (1/2" pitch). 72 teeth, 1-1/4" finished bore with keyway and two setscrews. Steel construction, 11.752" outside diameter. Hub on one side for common re-boring applications.
Brand Martin Sprocket
Model 40BS72 1 1/4
$119.64 Each
Free Shipping orders over $100
#261889
40BS9 5/8
Martin 40BS9 5/8 Bored-to-Size sprocket for #40 chain (1/2" pitch). 9 teeth, 5/8" finished bore with keyway and setscrews. Steel construction. Type B with hub one side. Outside diameter 1.674". For power transmission drives.
Brand Martin Sprocket
Model 40BS9 5/8
$20.50 Each
Free shipping
#262268
41BS30 1
Martin 41BS30 1 Bored-to-Size roller chain sprocket for #41 chain (1/2" pitch). 30 teeth with 1" finished bore, keyway, and setscrews. Steel construction. Outside diameter 5.057". Type B hub design for reliable power transmission.
Brand Martin Sprocket
Model 41BS30 1
$83.89 Each
Free shipping
#262548
50BS10 1
Martin 50BS10 1 Bored-to-Size (Type B Finished Bore) sprocket for #50 roller chain (5/8" pitch). 10 teeth, 1" finished bore with keyway and setscrews. Steel construction. Outside diameter 2.299". For power transmission drives.
Brand Martin Sprocket
Model 50BS10 1
$30.26 Each
Free shipping
#262556
50BS11 1
Martin 50BS11 1 Bored-to-Size (Type B Finished Bore) roller chain sprocket for #50 chain (5/8" pitch). 11 teeth, 1" finished bore with keyway and setscrews. Steel construction for general power transmission applications.
Brand Martin Sprocket
Model 50BS11 1
$31.61 Each
Free shipping
#262573
50BS12 1
Martin 50BS12 1 Bored-to-Size (Type B Finished Bore) sprocket for #50 roller chain (5/8" pitch). Features 12 teeth, a 1" finished bore with keyway and setscrews, and is made of steel. Ideal for power transmission drives requiring a standard finished bore
Brand Martin Sprocket
Model 50BS12 1
$32.76 Each
Free shipping
#262574
50BS12 1 1/4
Martin 50BS12 1 1/4 Bored-to-Size (Type B Finished Bore) roller chain sprocket for #50 chain (5/8" pitch). Features 12 teeth, a 1-1/4" finished bore with keyway and setscrews, and is made of steel. Outside diameter is 2.708".
Brand Martin Sprocket
Model 50BS12 1 1/4
$32.76 Each
Free shipping
#262615
50BS15 1
Martin 50BS15 1 Bored-to-Size (Type B) roller chain sprocket for #50 chain (5/8" pitch). Features 15 teeth, a 1" finished bore with keyway and two setscrews, and is made of steel. Ideal for power transmission drives requiring a stock finished bore
Brand Martin Sprocket
Model 50BS15 1
$37.93 Each
Free shipping
#262680
50BS18 1
Martin 50BS18 1 Bored-to-Size (Type B) roller chain sprocket for #50 chain (5/8" pitch). Features 18 teeth, a 1" finished bore with keyway and setscrews, and is made of steel. Ideal for power transmission drives requiring a standard finished bore
Brand Martin Sprocket
Model 50BS18 1
$49.80 Each
Free shipping
#262703
50BS19 1 1/4
Martin 50BS19 1 1/4 Type B Finished Bore Sprocket for #50 roller chain (5/8" pitch). Features 19 teeth, a 1-1/4" finished bore with keyway and setscrews, and a 4.120" outside diameter. Made of steel for general power transmission applications.
Brand Martin Sprocket
Model 50BS19 1 1/4
$55.35 Each
Free shipping
#262722
50BS20 1
Martin 50BS20 1 Bored-to-Size (Type B Finished Bore) sprocket for #50 roller chain (5/8" pitch). Features 20 teeth, a 1" finished bore with keyway and setscrews, and is constructed from steel. Outside diameter is 4.321". A standard stock component for
Brand Martin Sprocket
Model 50BS20 1
$60.15 Each
Free shipping
#262732
50BS20 7/8
Martin 50BS20 7/8 is a Type B Finished Bore roller chain sprocket for #50 chain (5/8" pitch). Features 20 teeth, a 7/8" finished bore with keyway and setscrews, and is made of steel. Ideal for power transmission drives requiring a standard finished bore
Brand Martin Sprocket
Model 50BS20 7/8
$60.15 Each
Free shipping
#262857
50BS30 1
Martin 50BS30 1 is a Type B Finished Bore roller chain sprocket for #50 chain (5/8" pitch). Features 30 teeth, a 1" finished bore with keyway and setscrews, and is made of steel. Ideal for power transmission drives requiring a standard bored-to-size
Brand Martin Sprocket
Model 50BS30 1
$85.82 Each
Free shipping
#262864
50BS30 3/4
Martin 50BS30 3/4 is a Type B Finished Bore roller chain sprocket for #50 chain (5/8" pitch). Features 30 teeth, a 3/4" finished bore with keyway and setscrews, and is made of steel. Ideal for power transmission drives requiring a standard bored-to-size
Brand Martin Sprocket
Model 50BS30 3/4
$85.82 Each
Free shipping
#262948
50BS38 1 3/16
Martin 50BS38 1 3/16 is a Type B Finished Bore (BS) roller chain sprocket for #50 chain (5/8" pitch). Features 38 teeth, a 1-3/16" finished bore with keyway and setscrews, and is made of steel. Ideal for power transmission drives requiring a hub on one
Brand Martin Sprocket
Model 50BS38 1 3/16
$97.72 Each
Free shipping
#262967
50BS40 1 1/4
Martin 50BS40 1 1/4 is a Type B Finished Bore roller chain sprocket for #50 chain (5/8" pitch). Features 40 teeth, a 1-1/4" finished bore with keyway and setscrews, and is made of steel. Ideal for power transmission drives requiring a standard
Brand Martin Sprocket
Model 50BS40 1 1/4
$100.34 Each
Free Shipping orders over $100
#263157
50BS60 1
Martin 50BS60 1 is a Type B Finished Bore roller chain sprocket for #50 chain (5/8" pitch) with 60 teeth and a 1" finished bore, keyway, and setscrews. Made of steel, it features a one-sided hub and an outside diameter of 12.301". Ideal for power
Brand Martin Sprocket
Model 50BS60 1
$133.99 Each
Free Shipping orders over $100
#263193
50BS84 1
Martin 50BS84 1 is a Type B Finished Bore roller chain sprocket for #50 chain (5/8" pitch) with 84 teeth and a 1" finished bore, keyway, and setscrews. Made of steel, it features a one-sided hub and an outside diameter of 17.078".
Brand Martin Sprocket
Model 50BS84 1
$247.99 Each
Free Shipping orders over $100
#263206
50BS96 1
Martin 50BS96 1 is a Type B Finished Bore roller chain sprocket for #50 chain (5/8" pitch) with 96 teeth and a 1" finished bore, keyway, and setscrews. Steel construction. Outside diameter: 19.467".
Brand Martin Sprocket
Model 50BS96 1
$298.93 Each
Free Shipping orders over $100
#263610
60BS10 1
Martin 60BS10 1 Bored-to-Size (Type B Finished Bore) roller chain sprocket for #60 chain (3/4" pitch). Features 10 teeth, a 1" finished bore with keyway and setscrews, and is made of steel. Ideal for power transmission drives requiring a stock finished
Brand Martin Sprocket
Model 60BS10 1
$31.61 Each
Free shipping
#263698
60BS15 1
Martin 60BS15 1 Bored-to-Size (Type B Finished Bore) roller chain sprocket for #60 chain (3/4" pitch). Features 15 teeth, a 1" finished bore with keyway and setscrews, and is made of steel. Outside diameter is 3.978".
Brand Martin Sprocket
Model 60BS15 1
$57.46 Each
Free shipping
#263701
60BS15 1 1/8
Martin 60BS15 1 1/8 Bored-to-Size (Type B Finished Bore) roller chain sprocket for #60 chain (3/4" pitch). 15 teeth, 1-1/8" finished bore with keyway and setscrews. Steel construction, 3.978" outside diameter. Direct replacement for industry-standard
Brand Martin Sprocket
Model 60BS15 1 1/8
$57.46 Each
Free shipping
#263806
60BS20 1 1/2
Martin 60BS20 1 1/2 Bored-to-Size (Type B) roller chain sprocket for #60 chain (3/4" pitch). Features 20 teeth, a 1-1/2" finished bore with keyway and setscrews, and is constructed from steel. Outside diameter is 5.185".
Brand Martin Sprocket
Model 60BS20 1 1/2
$85.24 Each
Free shipping
#263920
60BS30 1 3/16
Martin 60BS30 1 3/16 is a Type B Finished Bore roller chain sprocket for #60 chain (3/4" pitch). Features 30 teeth, a 1-3/16" finished bore with keyway and setscrews, and is made of steel. Outside diameter is 7.586".
Brand Martin Sprocket
Model 60BS30 1 3/16
$109.60 Each
Free Shipping orders over $100
#264300
60BS80 2
Martin 60BS80 2 is a Type B Finished Bore roller chain sprocket for #60 chain (3/4" pitch). Features 80 teeth, a 2" finished bore with keyway and setscrews, and is made of steel. Ideal for power transmission drives requiring a bored-to-size sprocket.
Brand Martin Sprocket
Model 60BS80 2
$334.21 Each
Free Shipping orders over $100
#265178
80BS30 1 1/2
Martin 80BS30 1 1/2 Bored-to-Size (Type B) roller chain sprocket for #80 chain (1" pitch). Features 30 teeth, a 1-1/2" finished bore with keyway and setscrews, and is constructed from steel. Ideal for power transmission drives requiring a stock finished
Brand Martin Sprocket
Model 80BS30 1 1/2
$170.10 Each
Free Shipping orders over $100