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