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
Material External Use
Steel
Single Strand Tooth Thickness
0.924 in
Tooth Width
0.924 in
Inch/Metric
Inch
Hub Projection
0.7 in
Martin No.
120E22H
Bushing Type
QD
Bore Type
Bushed
Overall Length
1 5/8 in
Chain No.
120
O.D.
11.333 in
Material
Steel
Pitch Dia.
10.54 in
No. of Teeth
22
Bushing Bore [Max]
3 1/2 in
Outside Dia. [Min]
11.3330 in
Bushing Bore Size [Max]
3.313 in
Width Across Teeth
0.924 in
No. of Teeth Rows Strands
1
Outside Dia.
11.333 in
Bore Size [Min]
0.875 in
Bushing Bore [Min]
0.875 in
Hardened Teeth
With Hardened Teeth
Screw Size
1/2-13 NC
Bore Size [Max]
3.313 in
No. of Strands Across
1
Overall Length Less Threads
N/A
Material Internal Use
Carbon Steel
Construction Internal
Solid
Bushing Bore Size [Min]
0.875 in
Hub Dia.
6 1/4 in
Chain Sprocket Number
120
Hub O.D.
6.25 in
Caliper Diameter
9.665 in
Length Through Bore
1.625 in
Chain Sprocket Pitch
1.5 in
Chain Pitch
1.500 in
Hub Length
0.7 in
Pitch Diameter
10.540 in
Type
B
Bushing Series
E
Sprocket Style
B
Weight
21.7 LB
EAN or UPC
697950042589
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