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