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
O.D.
13.222 in
Construction Internal
Welded
Length Through Bore
1.625 in
Overall Length Less Threads
N/A
Screw Size
1/2-13 NC
Hardened Teeth
With Hardened Teeth
Sprocket Style
B
Pitch Diameter
12.297 in
Tooth Width
0.924 in
Material External Use
Steel
No. of Teeth Rows Strands
1
Width Across Teeth
0.924 in
Martin No.
140E22H
Pitch Dia.
12.297 in
Bushing Type
QD
Chain No.
140
Chain Pitch
1.750 in
Single Strand Tooth Thickness
0.924 in
Material Internal Use
Carbon Steel
No. of Teeth
22
Type
B
Hub Projection
3/4 in
Bore Size [Max]
3.313 in
Outside Dia.
13.222 in
Bushing Series
E
Bushing Bore Size [Min]
0.875 in
Material
Steel
Bushing Bore [Min]
0.875 in
Hub Length
3/4 in
Outside Dia. [Min]
13.2220 in
Caliper Diameter
11.2967 in
Bore Size [Min]
0.875 in
Inch/Metric
Inch
No. of Strands Across
1
Bushing Bore Size [Max]
3.313 in
Hub Dia.
6 1/4 in
Bushing Bore [Max]
3 1/2 in
Chain Sprocket Pitch
1.75 in
Bore Type
Bushed
Hub O.D.
6.25 in
Chain Sprocket Number
140
Overall Length
1 5/8 in
Weight
29.08 LB
EAN or UPC
697950042763
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