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