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
Single Strand Tooth Thickness
0.924 in
No. of Teeth Rows Strands
1
Chain Sprocket Number
120
Bushing Bore [Max]
3 1/2 in
Inch/Metric
Inch
Bushing Type
QD
Material Internal Use
Carbon Steel
Material
Steel
Length Through Bore
1.625 in
Type
B
Tooth Width
0.924 in
Bore Size [Min]
0.875 in
Material External Use
Steel
Sprocket Style
B
Outside Dia.
15.172 in
Bushing Bore Size [Max]
3.313 in
Outside Dia. [Min]
15.1720 in
Bore Size [Max]
3.313 in
Overall Length
1 5/8 in
Pitch Diameter
14.350 in
Hub Length
0.7 in
Overall Length Less Threads
N/A
No. of Teeth
30
Chain Pitch
1.500 in
Construction Internal
Solid
Chain No.
120
Caliper Diameter
13.4752 in
No. of Strands Across
1
Martin No.
120E30H
Screw Size
1/2-13 NC
Chain Sprocket Pitch
1.5 in
Hub Dia.
6 1/4 in
Pitch Dia.
14.35 in
Bushing Series
E
Bushing Bore [Min]
0.875 in
O.D.
15.172 in
Bushing Bore Size [Min]
0.875 in
Hardened Teeth
With Hardened Teeth
Hub O.D.
6.25 in
Width Across Teeth
0.924 in
Hub Projection
0.7 in
Bore Type
Bushed
Weight
40.74 LB
EAN or UPC
697950042640
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