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
Single Strand Tooth Thickness
0.444 in
No. of Teeth Rows Strands
1
Type
B
Martin No.
60BTB25H
Bore Size [Max]
2.75 in
Bushing Bore Size [Max]
2.75 in
Sprocket Style
B
Chain No.
60
Chain Pitch
0.750 in
Hub Projection
0.81 in
Bushing Bore [Max]
2 in
Bushing Type
Taper Lock
O.D.
6.387 in
Bore Type
Bushed
Pitch Dia.
5.984 in
Pitch Diameter
5.984 in
Hub O.D.
3.563 in
Material Internal Use
Carbon Steel
Caliper Diameter
5.5032 in
No. of Teeth
25
Material External Use
Steel
Bushing Bore [Min]
1/2 in
Inch/Metric
Inch
No. of Strands Across
1
Hub Length
0.81 in
Construction Internal
Welded
Hardened Teeth
With Hardened Teeth
Chain Sprocket Pitch
0.75 in
Tooth Width
0.444 in
Outside Dia.
6.387 in
Overall Length
1 1/4 in
Width Across Teeth
1.25 in
Material
Steel
Length Through Bore
1.25 in
Overall Length Less Threads
N/A
Bushing Series
2012
Chain Sprocket Number
60
Outside Dia. [Min]
6.3870 in
Hub Dia.
3 9/16 in
Weight
3.66 LB
EAN or UPC
697950043456
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