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