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
Bushing Bore [Min]
1/2 in
Chain No.
80
Pitch Dia.
4.81 in
Bushing Type
Taper Lock
O.D.
5.305 in
Tooth Width
0.575 in
Bushing Bore Size [Max]
2.625 in
Chain Pitch
1.000 in
Bore Size [Max]
2.625 in
Outside Dia. [Min]
5.3050 in
Martin No.
80BTB15H
Inch/Metric
Inch
Hub Projection
0.92 in
Material External Use
Steel
Width Across Teeth
1.5 in
Hub Dia.
3 1/4 in
No. of Teeth
15
Single Strand Tooth Thickness
0.575 in
No. of Strands Across
1
Length Through Bore
1.5 in
Caliper Diameter
4.1584 in
No. of Teeth Rows Strands
1
Bore Type
Bushed
Overall Length Less Threads
N/A
Hardened Teeth
With Hardened Teeth
Chain Sprocket Number
80
Bushing Series
1615
Construction Internal
Solid
Outside Dia.
5.305 in
Hub Length
0.92 in
Hub O.D.
3.25 in
Overall Length
1 1/2 in
Bushing Bore [Max]
1 5/8 in
Sprocket Style
B
Material
Steel
Material Internal Use
Atomized Metals
Chain Sprocket Pitch
1 in
Type
B
Pitch Diameter
4.810 in
Weight
1.34 LB
EAN or UPC
697950043548
We're here for you
with Service Centers across the country - We have your back
Find a Service Center
