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