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
Caliper Diameter
4.801 in
Material Internal Use
Atomized Metals
Length Through Bore
1.25 in
Bushing Bore Size [Max]
2.75 in
Bore Size [Max]
2.75 in
O.D.
5.666 in
Chain No.
60
Hub O.D.
3.563 in
Overall Length Less Threads
N/A
Chain Pitch
0.750 in
Bushing Bore [Min]
1/2 in
Single Strand Tooth Thickness
0.444 in
No. of Teeth Rows Strands
1
Martin No.
60BTB22H
Outside Dia.
5.666 in
Hub Dia.
3 9/16 in
Construction Internal
Solid
Bushing Series
2012
Hub Length
0.81 in
Width Across Teeth
1.25 in
Bushing Bore [Max]
2 in
Inch/Metric
Inch
Hardened Teeth
With Hardened Teeth
Type
B
Hub Projection
0.81 in
Outside Dia. [Min]
5.6660 in
Chain Sprocket Pitch
0.75 in
Bore Type
Bushed
Overall Length
1 1/4 in
Material
Steel
Pitch Diameter
5.270 in
Sprocket Style
B
No. of Strands Across
1
Chain Sprocket Number
60
Pitch Dia.
5.27 in
Material External Use
Steel
No. of Teeth
22
Tooth Width
0.444 in
Bushing Type
Taper Lock
Weight
1.34 LB
EAN or UPC
697950043425
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