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
Hub Projection
0.41 in
Outside Dia.
4.321 in
Bushing Bore Size [Min]
0.5 in
Bushing Bore [Min]
0.5 in
Outside Dia. [Min]
4.3210 in
Material External Use
Steel
Hub Length
0.41 in
Sprocket Style
B
Hub O.D.
3.25 in
Caliper Diameter
3.5953 in
Type
B
Bore Type
Bushed
Bushing Bore [Max]
2 in
Martin No.
50SDS20H
Width Across Teeth
0.343 in
Overall Length Less Threads
N/A
Screw Size
1/4-20 UNC
Hub Dia.
3 1/4 in
Chain Sprocket Number
50
No. of Teeth Rows Strands
1
Tooth Width
0.343 in
O.D.
4.321 in
Bushing Type
QD
Pitch Dia.
3.995 in
Chain Sprocket Pitch
0.625 in
Hardened Teeth
With Hardened Teeth
Inch/Metric
Inch
Chain No.
50
No. of Strands Across
1
Bore Size [Min]
0.5 in
Material
Steel
Bushing Bore Size [Max]
2 in
Length Through Bore
0.75 in
Chain Pitch
0.625 in
Bushing Series
SDS
Bore Size [Max]
2 in
Construction Internal
Solid
Material Internal Use
Carbon Steel
No. of Teeth
20
Single Strand Tooth Thickness
0.343 in
Overall Length
3/4 in
Pitch Diameter
3.995 in
Weight
1.27 LB
EAN or UPC
697950041810
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