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
Pitch Dia.
7.175 in
Inch/Metric
Inch
O.D.
7.586 in
Sprocket Style
B
Chain Sprocket Pitch
0.75 in
Hub Projection
0.81 in
Hub Length
0.81 in
Outside Dia.
7.586 in
Overall Length
1 1/4 in
Chain Pitch
0.750 in
Material
Steel
Bore Size [Max]
2.75 in
Pitch Diameter
7.175 in
Bushing Bore Size [Max]
2.75 in
Caliper Diameter
6.7061 in
Width Across Teeth
1.25 in
Bushing Bore [Max]
2 in
Chain No.
60
Bushing Bore [Min]
1/2 in
Hardened Teeth
With Hardened Teeth
No. of Strands Across
1
No. of Teeth
30
Outside Dia. [Min]
7.5860 in
Hub O.D.
3.563 in
Bore Type
Bushed
Single Strand Tooth Thickness
0.444 in
Length Through Bore
1.25 in
Martin No.
60BTB30H
Chain Sprocket Number
60
Overall Length Less Threads
N/A
Material Internal Use
Carbon Steel
Material External Use
Steel
Hub Dia.
3 9/16 in
Construction Internal
Welded
Bushing Type
Taper Lock
No. of Teeth Rows Strands
1
Type
B
Bushing Series
2012
Tooth Width
0.444 in
Weight
5.18 LB
EAN or UPC
697950043487
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