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
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’ Taper bushings
Stocked Heat Treat
Overall Length Less Threads
N/A
Chain Sprocket Pitch
1.75 in
Inch/Metric
Inch
Hardened Teeth
With Hardened Teeth
Bore Type
Bushed
Outside Dia.
9.283 in
O.D.
9.283 in
Hub O.D.
5.25 in
Bushing Bore Size [Min]
0.938 in
Bushing Type
Taper Lock
Material External Use
Steel
Chain Sprocket Number
140
Bore Size [Min]
0.938 in
Overall Length
2 in
No. of Strands Across
1
Chain No.
140
Width Across Teeth
0.924 in
Martin No.
140BTB15H
Bushing Bore Size [Max]
3 in
Bushing Bore [Min]
0.938 in
Material
Steel
Hub Projection
1.08 in
Pitch Dia.
8.417 in
Construction Internal
Welded
Bushing Series
3020
Bore Size [Max]
3 in
Chain Pitch
1.750 in
Single Strand Tooth Thickness
0.924 in
No. of Teeth Rows Strands
1
Length Through Bore
2 in
Material Internal Use
Carbon Steel
Pitch Diameter
8.417 in
Caliper Diameter
7.3709 in
Sprocket Style
B
Outside Dia. [Min]
9.283 in
Tooth Width
0.924 in
Bushing Bore [Max]
3 in
No. of Teeth
15
Hub Length
1.08 in
Hub Dia.
5 1/4 in
Type
B
Weight
12.38 LB
EAN or UPC
697950043944
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