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
O.D.
6.498 in
Pitch Dia.
5.796 in
Type
B
Chain Pitch
1.500 in
Pitch Diameter
5.7956 in
Width Across Teeth
1.25 in
Hub Length
0.33 in
Material External Use
Steel
Bushing Bore [Max]
2 in
Hub Dia.
3 9/16 in
Bushing Series
2012
Hub Projection
0.33 in
Material
Steel
Bore Type
Bushed
Tooth Width
0.924 in
Inch/Metric
Inch
No. of Strands Across
1
Overall Length
1.25 in
No. of Teeth
12
Outside Dia.
6.498 in
Bushing Bore [Min]
0.5 in
Construction Internal
Solid
Material Internal Use
Carbon Steel
Sprocket Style
B
Length Through Bore
1.25 in
Caliper Diameter
4.9206 in
No. of Teeth Rows Strands
1
Overall Length Less Threads
N/A
Chain Sprocket Number
120
Outside Dia. [Min]
6.498 in
Bushing Type
Taper Lock
Chain No.
120
Hardened Teeth
With Hardened Teeth
Martin No.
120BTB12H
Single Strand Tooth Thickness
0.924 in
Hub O.D.
3.563 in
Bore Size [Max]
2.875 in
Bushing Bore Size [Max]
2.875 in
Chain Sprocket Pitch
1.5 in
Weight
6.98 LB
EAN or UPC
697950065717
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