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
Material External Use
Steel
Caliper Diameter
3.5231 in
Construction Internal
Solid
Bushing Bore [Min]
0.5 in
Outside Dia. [Min]
4.6570 in
Width Across Teeth
0.575 in
Length Through Bore
0.75 in
Bore Type
Bushed
Bushing Bore Size [Max]
2 in
Bushing Bore Size [Min]
0.5 in
Type
B
No. of Strands Across
1
Chain No.
80
Material
Steel
Overall Length
3/4 in
Single Strand Tooth Thickness
0.575 in
Bushing Bore [Max]
2 in
Bore Size [Max]
2 in
Chain Pitch
1.000 in
Chain Sprocket Pitch
1 in
Sprocket Style
B
Outside Dia.
4.657 in
Martin No.
80SDS13H
Inch/Metric
Inch
Bushing Series
SDS
Pitch Diameter
4.179 in
Screw Size
1/4-20 UNC
Hub Length
0.17 in
Bore Size [Min]
0.5 in
No. of Teeth
13
Hardened Teeth
With Hardened Teeth
Hub Projection
0.17 in
Bushing Type
QD
Tooth Width
0.575 in
No. of Teeth Rows Strands
1
Material Internal Use
Carbon Steel
Overall Length Less Threads
N/A
Pitch Dia.
4.179 in
O.D.
4.657 in
Hub O.D.
3.25 in
Hub Dia.
3.209 in
Chain Sprocket Number
80
Weight
1.52 LB
EAN or UPC
697950042121
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