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’ QD bushings
Stocked Heat Treat
Width Across Teeth
0.575 in
Chain No.
80
No. of Strands Across
1
Bore Size [Max]
2.625 in
Type
B
Bore Size [Min]
0.5 in
Tooth Width
0.575 in
Overall Length Less Threads
N/A
Bushing Bore Size [Max]
2.625 in
Hub Dia.
4 in
Chain Pitch
1.000 in
Bushing Bore [Max]
2 5/8 in
No. of Teeth Rows Strands
1
Outside Dia.
6.593 in
No. of Teeth
19
Bushing Bore Size [Min]
0.5 in
Martin No.
80SK19H
Pitch Diameter
6.076 in
Outside Dia. [Min]
6.5930 in
Chain Sprocket Number
80
Bushing Series
SK
Screw Size
5/16-18 UNC
Construction Internal
Welded
Inch/Metric
Inch
O.D.
6.593 in
Bushing Type
QD
Hub Length
0.69 in
Single Strand Tooth Thickness
0.575 in
Pitch Dia.
6.076 in
Material Internal Use
Carbon Steel
Hub O.D.
4 in
Length Through Bore
1.25 in
Chain Sprocket Pitch
1 in
Caliper Diameter
5.4297 in
Sprocket Style
B
Overall Length
1 1/4 in
Bushing Bore [Min]
0.5 in
Bore Type
Bushed
Material
Steel
Material External Use
Steel
Hardened Teeth
With Hardened Teeth
Hub Projection
0.69 in
Weight
4.38 LB
EAN or UPC
697950042183
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