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
Overall Length
1 5/8 in
Sprocket Style
B
No. of Teeth Rows Strands
1
Construction Internal
Solid
Hub Dia.
6 1/4 in
Bushing Bore Size [Max]
3.313 in
Overall Length Less Threads
N/A
Pitch Diameter
9.589 in
Chain Sprocket Number
120
Bushing Type
QD
Material External Use
Steel
Outside Dia.
10.371 in
Bore Size [Min]
0.875 in
No. of Teeth
20
Outside Dia. [Min]
10.3710 in
Martin No.
120E20H
Bore Type
Bushed
Bushing Bore [Min]
0.875 in
Chain No.
120
Hardened Teeth
With Hardened Teeth
Bushing Series
E
Material Internal Use
Carbon Steel
Hub Length
0.7 in
Width Across Teeth
0.924 in
Type
B
Hub Projection
0.7 in
No. of Strands Across
1
Bushing Bore Size [Min]
0.875 in
Screw Size
1/2-13 NC
Material
Steel
Chain Pitch
1.500 in
Tooth Width
0.924 in
Hub O.D.
6.25 in
Pitch Dia.
9.589 in
Bore Size [Max]
3.313 in
Single Strand Tooth Thickness
0.924 in
O.D.
10.371 in
Length Through Bore
1.625 in
Chain Sprocket Pitch
1.5 in
Bushing Bore [Max]
3 1/2 in
Inch/Metric
Inch
Caliper Diameter
8.7137 in
Weight
18.08 LB
EAN or UPC
697950042565
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