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.
9.848 in
Overall Length
1 5/8 in
Bushing Bore [Min]
0.875 in
Bore Type
Bushed
Bushing Bore Size [Min]
0.875 in
Width Across Teeth
0.924 in
Single Strand Tooth Thickness
0.924 in
Bushing Bore [Max]
3 1/2 in
No. of Teeth
16
Inch/Metric
Inch
Material
Steel
Sprocket Style
B
Bore Size [Max]
3.313 in
Screw Size
1/2-13 NC
Pitch Dia.
8.97 in
Chain Sprocket Pitch
1.75 in
Pitch Diameter
8.970 in
Bore Size [Min]
0.875 in
Hub Length
0.71 in
Chain Pitch
1.750 in
Caliper Diameter
7.9702 in
Outside Dia. [Min]
9.8480 in
Chain Sprocket Number
140
Tooth Width
0.924 in
Length Through Bore
1.625 in
Hardened Teeth
With Hardened Teeth
Bushing Type
QD
Martin No.
140E16H
Hub Projection
0.71 in
Chain No.
140
No. of Strands Across
1
Bushing Series
E
Material Internal Use
Carbon Steel
Outside Dia.
9.848 in
Overall Length Less Threads
N/A
Hub O.D.
6.25 in
Construction Internal
Solid
Bushing Bore Size [Max]
3.313 in
Hub Dia.
6.26 in
No. of Teeth Rows Strands
1
Type
B
Material External Use
Steel
Weight
15.88 LB
EAN or UPC
697950042701
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