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