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