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