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
Hardened Teeth
With Hardened Teeth
Bushing Bore [Max]
2 in
Chain Pitch
0.625 in
Martin No.
50BTB28H
Inch/Metric
Inch
Caliper Diameter
5.1821 in
Type
B
No. of Teeth Rows Strands
1
Bushing Bore [Min]
1/2 in
Chain No.
50
No. of Strands Across
1
No. of Teeth
28
Hub Length
0.91 in
Outside Dia.
5.922 in
Hub Projection
0.91 in
Chain Sprocket Number
50
Overall Length
2 in
Tooth Width
0.343 in
Chain Sprocket Pitch
0.625 in
Bushing Type
Taper Lock
O.D.
5.922 in
Construction Internal
Solid
Material Internal Use
Atomized Metals
Bore Size [Max]
2.063 in
Length Through Bore
1.25 in
Single Strand Tooth Thickness
0.343 in
Material External Use
Steel
Bore Type
Bushed
Width Across Teeth
1.25 in
Hub Dia.
3 9/16 in
Hub O.D.
3.563 in
Overall Length Less Threads
N/A
Sprocket Style
B
Pitch Dia.
5.582 in
Bushing Bore Size [Max]
2.063 in
Outside Dia. [Min]
5.9220 in
Material
Steel
Pitch Diameter
5.582 in
Bushing Series
2012
Weight
2.6 LB
EAN or UPC
697950043296
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