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
Overall Length
1 1/4 in
No. of Strands Across
1
Chain Pitch
0.750 in
Width Across Teeth
1.25 in
Martin No.
60BTB28H
Hub Projection
0.81 in
Construction Internal
Welded
Bushing Bore [Min]
1/2 in
Pitch Dia.
6.699 in
Inch/Metric
Inch
Caliper Diameter
6.2296 in
Bushing Bore [Max]
2 in
Material External Use
Steel
Hub Length
0.81 in
Pitch Diameter
6.699 in
Outside Dia.
7.106 in
Bushing Series
2012
Chain No.
60
O.D.
7.106 in
Hub Dia.
3 9/16 in
Overall Length Less Threads
N/A
Single Strand Tooth Thickness
0.444 in
No. of Teeth
28
Material
Steel
Bushing Type
Taper Lock
Chain Sprocket Number
60
Sprocket Style
B
Bore Type
Bushed
Hub O.D.
3.563 in
Hardened Teeth
With Hardened Teeth
Bushing Bore Size [Max]
2.75 in
Chain Sprocket Pitch
0.75 in
Bore Size [Max]
2.75 in
Material Internal Use
Carbon Steel
Length Through Bore
1.25 in
Type
B
Outside Dia. [Min]
7.1060 in
No. of Teeth Rows Strands
1
Tooth Width
0.444 in
Weight
4.62 LB
EAN or UPC
697950043470
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