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