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
Material External Use
Steel
Width Across Teeth
1.25 in
Bushing Bore [Min]
1/2 in
Type
B
Inch/Metric
Inch
Bushing Series
2012
Hardened Teeth
With Hardened Teeth
Chain Sprocket Pitch
0.75 in
Chain No.
60
Construction Internal
Solid
Tooth Width
0.444 in
Chain Sprocket Number
60
Pitch Diameter
5.508 in
Hub Projection
0.81 in
Martin No.
60BTB23H
Bore Type
Bushed
Material Internal Use
Atomized Metals
Hub Length
0.81 in
Sprocket Style
B
Chain Pitch
0.750 in
Outside Dia. [Min]
5.9070 in
O.D.
5.907 in
Caliper Diameter
5.0262 in
Bushing Bore Size [Max]
2.75 in
No. of Strands Across
1
No. of Teeth
23
Hub O.D.
3.563 in
Single Strand Tooth Thickness
0.444 in
Overall Length
1 1/4 in
Pitch Dia.
5.508 in
Bushing Type
Taper Lock
Hub Dia.
3 9/16 in
Overall Length Less Threads
N/A
Material
Steel
No. of Teeth Rows Strands
1
Bushing Bore [Max]
2 in
Outside Dia.
5.907 in
Bore Size [Max]
2.75 in
Length Through Bore
1.25 in
Weight
1.34 LB
EAN or UPC
697950043432
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