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’ QD bushings
Stocked Heat Treat
Chain Sprocket Number
50
Bore Type
Bushed
Caliper Diameter
3.5953 in
No. of Teeth
20
Type
B
O.D.
4.321 in
Hub Dia.
3 1/4 in
Bushing Bore [Max]
2 in
Length Through Bore
0.75 in
Bushing Type
QD
Bushing Bore Size [Max]
2 in
Sprocket Style
B
Single Strand Tooth Thickness
0.343 in
Bore Size [Max]
2 in
Width Across Teeth
0.343 in
Screw Size
1/4-20 UNC
Hub Length
0.41 in
Tooth Width
0.343 in
Inch/Metric
Inch
No. of Strands Across
1
Material
Steel
Martin No.
50SDS20H
Overall Length
3/4 in
Outside Dia.
4.321 in
Bushing Series
SDS
Hardened Teeth
With Hardened Teeth
Material Internal Use
Carbon Steel
Chain Sprocket Pitch
0.625 in
No. of Teeth Rows Strands
1
Pitch Diameter
3.995 in
Hub Projection
0.41 in
Bushing Bore [Min]
0.5 in
Overall Length Less Threads
N/A
Chain Pitch
0.625 in
Pitch Dia.
3.995 in
Construction Internal
Solid
Material External Use
Steel
Bushing Bore Size [Min]
0.5 in
Hub O.D.
3.25 in
Bore Size [Min]
0.5 in
Chain No.
50
Outside Dia. [Min]
4.3210 in
Weight
1.27 LB
EAN or UPC
697950041810
We're here for you
with Service Centers across the country - We have your back
Find a Service Center
