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
Pitch Diameter
4.788 in
Hub Dia.
3 9/16 in
Overall Length Less Threads
N/A
Chain No.
50
No. of Strands Across
1
Width Across Teeth
1.25 in
Hub Projection
0.91 in
Bushing Bore [Min]
1/2 in
Material
Steel
Type
B
Single Strand Tooth Thickness
0.343 in
Bore Size [Max]
2.063 in
Pitch Dia.
4.788 in
Sprocket Style
B
Bushing Series
2012
No. of Teeth Rows Strands
1
Martin No.
50BTB24H
Chain Pitch
0.625 in
Bore Type
Bushed
Tooth Width
0.343 in
Hub O.D.
3.563 in
Caliper Diameter
4.3883 in
Length Through Bore
1.25 in
Chain Sprocket Pitch
0.625 in
Chain Sprocket Number
50
Bushing Type
Taper Lock
Outside Dia. [Min]
5.1220 in
Overall Length
2 in
No. of Teeth
24
Hub Length
0.91 in
Inch/Metric
Inch
Construction Internal
Solid
O.D.
5.122 in
Bushing Bore Size [Max]
2.063 in
Bushing Bore [Max]
2 in
Material Internal Use
Atomized Metals
Outside Dia.
5.122 in
Hardened Teeth
With Hardened Teeth
Material External Use
Steel
Weight
1.34 LB
EAN or UPC
697950043265
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