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
Chain Sprocket Number
120
Length Through Bore
1.625 in
Outside Dia.
9.889 in
Bore Size [Max]
3.313 in
Bore Type
Bushed
Caliper Diameter
8.2072 in
Inch/Metric
Inch
Outside Dia. [Min]
9.8890 in
Bushing Bore [Max]
3 1/2 in
No. of Strands Across
1
Overall Length
1 5/8 in
Bushing Bore [Min]
0.875 in
Hub Length
0.7 in
Material Internal Use
Carbon Steel
Screw Size
1/2-13 NC
Material
Steel
Martin No.
120E19H
No. of Teeth
19
O.D.
9.889 in
Bushing Bore Size [Max]
3.313 in
Type
B
Chain Pitch
1.500 in
Bushing Bore Size [Min]
0.875 in
Sprocket Style
B
Material External Use
Steel
Single Strand Tooth Thickness
0.924 in
No. of Teeth Rows Strands
1
Hardened Teeth
With Hardened Teeth
Tooth Width
0.924 in
Bushing Type
QD
Chain No.
120
Chain Sprocket Pitch
1.5 in
Hub O.D.
6 in
Overall Length Less Threads
N/A
Width Across Teeth
0.924 in
Pitch Dia.
9.113 in
Construction Internal
Solid
Hub Dia.
6 1/4 in
Bushing Series
E
Pitch Diameter
9.113 in
Hub Projection
0.7 in
Bore Size [Min]
0.875 in
Weight
16.0 LB
EAN or UPC
697950042558
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