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