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
Outside Dia. [Min]
5.5220 in
Hub O.D.
3.563 in
Construction Internal
Solid
No. of Teeth Rows Strands
1
Bushing Bore Size [Max]
2.063 in
Material
Steel
Bushing Bore [Max]
2 in
Pitch Dia.
5.185 in
Material External Use
Steel
Chain Pitch
0.625 in
Bore Type
Bushed
Hub Length
0.91 in
Hub Dia.
3 9/16 in
Outside Dia.
5.522 in
Chain Sprocket Number
50
Material Internal Use
Atomized Metals
Overall Length Less Threads
N/A
Width Across Teeth
1.25 in
Caliper Diameter
4.7851 in
Hardened Teeth
With Hardened Teeth
No. of Strands Across
1
Type
B
Overall Length
2 in
Sprocket Style
B
Hub Projection
0.91 in
Inch/Metric
Inch
Bushing Series
2012
Chain No.
50
Bore Size [Max]
2.063 in
Bushing Bore [Min]
1/2 in
Bushing Type
Taper Lock
Pitch Diameter
5.185 in
O.D.
5.522 in
Single Strand Tooth Thickness
0.343 in
Chain Sprocket Pitch
0.625 in
Martin No.
50BTB26H
Tooth Width
0.343 in
Length Through Bore
1.25 in
No. of Teeth
26
Weight
2.8 LB
EAN or UPC
697950043289
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