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