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
Tooth Width
0.575 in
Length Through Bore
1.75 in
Pitch Dia.
6.393 in
Construction Internal
Welded
Chain Sprocket Number
80
Overall Length Less Threads
N/A
Inch/Metric
Inch
Material Internal Use
Carbon Steel
Hub Projection
1.19 in
Overall Length
1 3/4 in
Bushing Series
2517
Hub O.D.
4.25 in
Chain Sprocket Pitch
1 in
Outside Dia.
6.914 in
Width Across Teeth
1.75 in
Bushing Bore [Min]
1/2 in
Caliper Diameter
5.7675 in
Chain No.
80
No. of Strands Across
1
Hardened Teeth
With Hardened Teeth
Single Strand Tooth Thickness
0.575 in
Bore Size [Max]
2.875 in
Bushing Bore Size [Max]
2.875 in
Bore Type
Bushed
No. of Teeth Rows Strands
1
Pitch Diameter
6.393 in
Bushing Type
Taper Lock
Hub Dia.
4 1/4 in
No. of Teeth
20
Material External Use
Steel
Material
Steel
Sprocket Style
B
O.D.
6.914 in
Bushing Bore [Max]
2 1/2 in
Martin No.
80BTB20H
Chain Pitch
1.000 in
Hub Length
1.19 in
Type
B
Outside Dia. [Min]
6.9140 in
Weight
5.37 LB
EAN or UPC
697950043593
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