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