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