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