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