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
Construction Internal
Solid
Material External Use
Steel
Inch/Metric
Inch
Overall Length
7/8 in
Bushing Bore [Min]
0.5 in
Chain Pitch
0.625 in
Chain No.
50
Bushing Bore Size [Max]
1 in
Hub Length
0.55 in
Bore Size [Min]
0.5 in
Outside Dia. [Min]
2.9110 in
Hardened Teeth
With Hardened Teeth
Sprocket Style
B
Hub O.D.
1.813 in
O.D.
2.911 in
Martin No.
50BTB13H
Outside Dia.
2.911 in
Bushing Bore Size [Min]
0.5 in
Bore Type
Bushed
Bore Size [Max]
1 in
Bushing Bore [Max]
1 in
Tooth Width
0.343 in
Hub Projection
0.55 in
Pitch Diameter
2.612 in
Pitch Dia.
2.612 in
Length Through Bore
0.875 in
Type
B
Material
Steel
Chain Sprocket Pitch
0.625 in
Width Across Teeth
0.875 in
No. of Teeth
13
No. of Teeth Rows Strands
1
Caliper Diameter
2.1926 in
Chain Sprocket Number
50
Single Strand Tooth Thickness
0.343 in
Overall Length Less Threads
N/A
Bushing Type
Taper Lock
Material Internal Use
Carbon Steel
Bushing Series
1008
Hub Dia.
1 13/16 in
No. of Strands Across
1
Weight
0.5 LB
EAN or UPC
697950043159
We're here for you
with Service Centers across the country - We have your back
Find a Service Center
