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