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
Bushing Series
2012
O.D.
6.147 in
Martin No.
60BTB24H
Sprocket Style
B
Inch/Metric
Inch
Hub Length
0.81 in
Bore Size [Max]
2.75 in
Overall Length
1 1/4 in
Chain Sprocket Pitch
0.75 in
Chain Pitch
0.750 in
No. of Teeth
24
No. of Strands Across
1
Pitch Diameter
5.746 in
No. of Teeth Rows Strands
1
Outside Dia.
6.147 in
Length Through Bore
1.25 in
Material Internal Use
Carbon Steel
Chain Sprocket Number
60
Single Strand Tooth Thickness
0.444 in
Hub O.D.
3.563 in
Bushing Bore [Min]
1/2 in
Chain No.
60
Width Across Teeth
1.25 in
Type
B
Pitch Dia.
5.746 in
Bore Type
Bushed
Hub Projection
0.81 in
Material
Steel
Bushing Bore Size [Max]
2.75 in
Material External Use
Steel
Bushing Bore [Max]
2 in
Tooth Width
0.444 in
Bushing Type
Taper Lock
Outside Dia. [Min]
6.1470 in
Caliper Diameter
5.277 in
Overall Length Less Threads
N/A
Hub Dia.
3 9/16 in
Construction Internal
Welded
Hardened Teeth
With Hardened Teeth
Weight
3.44 LB
EAN or UPC
697950043449
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