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
Hub Dia.
6 1/4 in
Outside Dia.
11.537 in
Material External Use
Steel
Outside Dia. [Min]
11.5370 in
Overall Length
1 5/8 in
Bushing Bore Size [Max]
3.313 in
Type
B
No. of Strands Across
1
Bushing Series
E
Pitch Diameter
10.632 in
Bushing Bore [Min]
0.875 in
Sprocket Style
B
O.D.
11.537 in
Screw Size
1/2-13 NC
No. of Teeth Rows Strands
1
Bore Size [Min]
0.875 in
Hardened Teeth
With Hardened Teeth
Bushing Type
QD
Material
Steel
Hub Projection
3/4 in
Chain No.
140
No. of Teeth
19
Chain Sprocket Pitch
1.75 in
Pitch Dia.
10.632 in
Tooth Width
0.924 in
Width Across Teeth
0.924 in
Bushing Bore Size [Min]
0.875 in
Bore Type
Bushed
Hub Length
3/4 in
Material Internal Use
Carbon Steel
Inch/Metric
Inch
Length Through Bore
1.625 in
Overall Length Less Threads
N/A
Hub O.D.
6.25 in
Chain Sprocket Number
140
Martin No.
140E19H
Chain Pitch
1.750 in
Construction Internal
Welded
Caliper Diameter
9.5959 in
Bore Size [Max]
3.313 in
Bushing Bore [Max]
3 1/2 in
Single Strand Tooth Thickness
0.924 in
Weight
21.9 LB
EAN or UPC
697950042732
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