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