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 Dia.
4.83 in
Sprocket Style
B
Chain No.
100
Hub O.D.
3.25 in
Bushing Bore [Max]
2 in
Outside Dia.
5.415 in
No. of Teeth
12
Screw Size
1/4-20 NC
Bushing Bore Size [Max]
2 in
Material
Steel
Width Across Teeth
0.692 in
Hub Projection
0.06 in
Overall Length Less Threads
N/A
Bore Size [Min]
0.5 in
Overall Length
3/4 in
Chain Sprocket Pitch
1.25 in
Bushing Bore Size [Min]
0.5 in
Material Internal Use
Carbon Steel
Pitch Diameter
4.830 in
Chain Sprocket Number
100
Hub Dia.
3 1/4 in
Bushing Bore [Min]
0.5 in
Martin No.
100SDS12H
Bore Size [Max]
2 in
Outside Dia. [Min]
5.4150 in
Construction Internal
Solid
Inch/Metric
Inch
Bushing Type
QD
Material External Use
Steel
Bushing Series
SDS
Caliper Diameter
4.0796 in
No. of Teeth Rows Strands
1
Hardened Teeth
With Hardened Teeth
Tooth Width
0.692 in
Type
B
Bore Type
Bushed
O.D.
5.415 in
Single Strand Tooth Thickness
0.692 in
No. of Strands Across
1
Chain Pitch
1.250 in
Hub Length
0.06 in
Length Through Bore
0.75 in
Weight
2.46 LB
EAN or UPC
697950042305
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