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