Hardened teeth on the smaller sprocket of a roller chain drive are recommended if the drive ratio is four to one or greater or if the smaller sprocket has 24 teeth or less and is running at a speed of over 600 rpm.
features
Hardened teeth sprockets afford longer chain and sprocket life
Tolerances meet or exceed ANSI standards
Manufactured of high carbon steel
Precise machining and processes ensure consistent finish and high quality
Chain rows are parallel and precisely spaced to increase longevity of sprocket and chain
Bores are concentric to pitch line, minimizing run out
Interchangeable with other manufacturers’ Taper bushings
Stocked Heat Treat
Type
B
Tooth Width
0.444 in
Pitch Dia.
5.508 in
Bushing Bore Size [Max]
2.75 in
Hardened Teeth
With Hardened Teeth
Bushing Series
2012
No. of Teeth
23
Hub Projection
0.81 in
Outside Dia. [Min]
5.9070 in
Outside Dia.
5.907 in
Chain Sprocket Number
60
Bore Type
Bushed
Inch/Metric
Inch
Sprocket Style
B
Bore Size [Max]
2.75 in
Pitch Diameter
5.508 in
Single Strand Tooth Thickness
0.444 in
Material External Use
Steel
Bushing Bore [Min]
1/2 in
Hub Dia.
3 9/16 in
Chain Sprocket Pitch
0.75 in
Chain Pitch
0.750 in
Length Through Bore
1.25 in
Material Internal Use
Atomized Metals
Hub Length
0.81 in
Material
Steel
Martin No.
60BTB23H
Bushing Bore [Max]
2 in
Overall Length Less Threads
N/A
Bushing Type
Taper Lock
No. of Teeth Rows Strands
1
No. of Strands Across
1
Chain No.
60
Caliper Diameter
5.0262 in
Overall Length
1 1/4 in
O.D.
5.907 in
Width Across Teeth
1.25 in
Hub O.D.
3.563 in
Construction Internal
Solid
Weight
1.34 LB
EAN or UPC
697950043432
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