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
Width Across Teeth
0.284 in
Bore Type
Bushed
Bushing Type
QD
Single Strand Tooth Thickness
0.284 in
Overall Length
13/16 in
Chain No.
40
Bushing Bore Size [Max]
1.688 in
Hub Length
0.53 in
Length Through Bore
0.812 in
Bushing Series
SH
Type
B
Sprocket Style
B
Material External Use
Steel
Hub O.D.
2.75 in
Outside Dia. [Min]
3.4570 in
Hub Dia.
2.688 in
Inch/Metric
Inch
Bushing Bore [Max]
1 5/8 in
Bushing Bore Size [Min]
0.5 in
Overall Length Less Threads
N/A
Screw Size
1/4-20 UNC
Bushing Bore [Min]
0.5 in
Pitch Diameter
3.196 in
Bore Size [Min]
0.5 in
Chain Sprocket Pitch
0.5 in
Hub Projection
0.53 in
Chain Sprocket Number
40
Martin No.
40SH20H
O.D.
3.457 in
Construction Internal
Solid
Tooth Width
0.284 in
Caliper Diameter
2.8842 in
Bore Size [Max]
1.688 in
Hardened Teeth
With Hardened Teeth
Chain Pitch
0.500 in
Material Internal Use
Carbon Steel
Outside Dia.
3.457 in
Pitch Dia.
3.196 in
No. of Teeth Rows Strands
1
Material
Steel
No. of Strands Across
1
No. of Teeth
20
Weight
0.74 LB
EAN or UPC
697950041636
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