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
Hub O.D.
3.563 in
Bushing Bore Size [Max]
2.875 in
Hub Dia.
3 9/16 in
Outside Dia.
6.593 in
Bushing Bore [Max]
2 in
Chain No.
80
Pitch Dia.
6.076 in
O.D.
6.593 in
Hub Projection
0.69 in
Material External Use
Steel
Type
B
Length Through Bore
1.25 in
Bushing Type
Taper Lock
Chain Pitch
1.000 in
Bushing Series
2012
No. of Teeth
19
Martin No.
80BTB19H
Bore Type
Bushed
Chain Sprocket Pitch
1 in
Inch/Metric
Inch
No. of Strands Across
1
Outside Dia. [Min]
6.5930 in
Single Strand Tooth Thickness
0.575 in
Material
Steel
No. of Teeth Rows Strands
1
Material Internal Use
Carbon Steel
Caliper Diameter
5.4297 in
Bushing Bore [Min]
1/2 in
Hub Length
0.69 in
Chain Sprocket Number
80
Overall Length
1 1/4 in
Bore Size [Max]
2.875 in
Width Across Teeth
1.25 in
Overall Length Less Threads
N/A
Hardened Teeth
With Hardened Teeth
Pitch Diameter
6.076 in
Construction Internal
Welded
Sprocket Style
B
Tooth Width
0.575 in
Weight
4.34 LB
EAN or UPC
697950043586
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