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
Width Across Teeth
1.25 in
Chain Sprocket Pitch
0.75 in
Bushing Type
Taper Lock
Hub O.D.
3.563 in
Caliper Diameter
5.9804 in
Length Through Bore
1.25 in
Chain Sprocket Number
60
Outside Dia.
6.867 in
Material Internal Use
Carbon Steel
Construction Internal
Welded
No. of Strands Across
1
Tooth Width
0.444 in
Bore Type
Bushed
Chain Pitch
0.750 in
Type
B
No. of Teeth Rows Strands
1
Hardened Teeth
With Hardened Teeth
Hub Dia.
3 9/16 in
Inch/Metric
Inch
Material
Steel
Chain No.
60
No. of Teeth
27
Bushing Series
2012
Material External Use
Steel
Outside Dia. [Min]
6.8670 in
Hub Projection
0.81 in
Bore Size [Max]
2.75 in
O.D.
6.867 in
Overall Length Less Threads
N/A
Martin No.
60BTB27H
Sprocket Style
B
Pitch Diameter
6.460 in
Bushing Bore [Min]
1/2 in
Bushing Bore [Max]
2 in
Pitch Dia.
6.46 in
Bushing Bore Size [Max]
2.75 in
Overall Length
1 1/4 in
Hub Length
0.81 in
Single Strand Tooth Thickness
0.444 in
Weight
4.3 LB
EAN or UPC
697950065663
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