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
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’ Taper bushings
Stocked Heat Treat
Hub Length
1.08 in
Width Across Teeth
0.924 in
Hub Dia.
5 1/4 in
Pitch Diameter
9.1133 in
Hub O.D.
5.25 in
Bore Size [Min]
0.938 in
Overall Length
2 in
Outside Dia.
9.889 in
Length Through Bore
2 in
Bushing Bore [Min]
0.938 in
No. of Teeth
19
Bore Size [Max]
3 in
Bushing Bore Size [Min]
0.938 in
Chain Sprocket Number
120
Construction Internal
Welded
Chain Sprocket Pitch
1.5 in
Type
B
Chain No.
120
Bore Type
Bushed
Bushing Type
Taper Lock
Pitch Dia.
9.113 in
Overall Length Less Threads
N/A
Inch/Metric
Inch
Hub Projection
1.08 in
No. of Teeth Rows Strands
1
Sprocket Style
B
Single Strand Tooth Thickness
0.924 in
No. of Strands Across
1
Material
Steel
Chain Pitch
1.500 in
Bushing Bore Size [Max]
3 in
Material Internal Use
Carbon Steel
Martin No.
120BTB19H
Tooth Width
0.924 in
Bushing Bore [Max]
3 in
Caliper Diameter
8.2072 in
Hardened Teeth
With Hardened Teeth
Bushing Series
3020
O.D.
9.889 in
Outside Dia. [Min]
9.889 in
Material External Use
Steel
Weight
15.0 LB
EAN or UPC
697950043883
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