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
17
Hub Projection
3/4 in
Hub Dia.
6 1/4 in
Overall Length
1 5/8 in
No. of Strands Across
1
Hardened Teeth
With Hardened Teeth
Width Across Teeth
0.924 in
O.D.
10.412 in
Chain Sprocket Pitch
1.75 in
Overall Length Less Threads
N/A
Bore Type
Bushed
Hub Length
3/4 in
Pitch Diameter
9.524 in
Bushing Bore Size [Min]
0.875 in
Construction Internal
Welded
Outside Dia.
10.412 in
Chain Pitch
1.750 in
Single Strand Tooth Thickness
0.924 in
Bushing Bore Size [Max]
3.313 in
Material External Use
Steel
Sprocket Style
B
Outside Dia. [Min]
10.4120 in
Material
Steel
Bore Size [Max]
3.313 in
Martin No.
140E17H
Tooth Width
0.924 in
Material Internal Use
Carbon Steel
Chain Sprocket Number
140
Bore Size [Min]
0.875 in
Hub O.D.
6.25 in
Caliper Diameter
8.4832 in
Type
B
Bushing Type
QD
Pitch Dia.
9.524 in
No. of Teeth Rows Strands
1
Length Through Bore
1.625 in
Screw Size
1/2-13 NC
Chain No.
140
Bushing Series
E
Bushing Bore [Min]
0.875 in
Inch/Metric
Inch
Bushing Bore [Max]
3 1/2 in
Weight
17.68 LB
EAN or UPC
697950042718
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