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’ Taper bushings
Stocked Heat Treat
Chain Pitch
1.500 in
Pitch Dia.
6.741 in
Material
Steel
O.D.
7.472 in
Construction Internal
Solid
Bushing Type
Taper Lock
Outside Dia. [Min]
7.4720 in
Width Across Teeth
1.75 in
Bore Size [Max]
3.25 in
Length Through Bore
1.75 in
No. of Strands Across
1
Material Internal Use
Carbon Steel
Material External Use
Steel
Overall Length
1 3/4 in
Bushing Series
2517
Bushing Bore [Min]
1/2 in
Pitch Diameter
6.741 in
Hub O.D.
4.25 in
Hub Projection
0.83 in
Sprocket Style
B
Single Strand Tooth Thickness
0.924 in
Martin No.
120BTB14H
Bushing Bore Size [Max]
3.25 in
Chain Sprocket Pitch
1.5 in
Inch/Metric
Inch
Chain No.
120
Chain Sprocket Number
120
Tooth Width
0.924 in
No. of Teeth Rows Strands
1
Hardened Teeth
With Hardened Teeth
Type
B
Caliper Diameter
5.8659 in
Overall Length Less Threads
N/A
Hub Dia.
4 1/4 in
No. of Teeth
14
Outside Dia.
7.472 in
Bushing Bore [Max]
2 1/2 in
Hub Length
0.83 in
Bore Type
Bushed
Weight
7.64 LB
EAN or UPC
697950043838
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