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
Pitch Dia.
10.078 in
Outside Dia. [Min]
10.975 in
Chain Sprocket Pitch
1.75 in
Material External Use
Steel
Sprocket Style
B
Hub Dia.
5 1/4 in
Caliper Diameter
9.0778 in
Bore Size [Min]
0.938 in
Bushing Series
3020
Bushing Bore [Max]
3 in
Hub Length
1.08 in
Single Strand Tooth Thickness
0.924 in
Bore Type
Bushed
Type
B
Bushing Type
Taper Lock
No. of Teeth Rows Strands
1
Chain Sprocket Number
140
Overall Length
2 in
Inch/Metric
Inch
Tooth Width
0.924 in
Chain Pitch
1.750 in
Bore Size [Max]
3 in
Pitch Diameter
10.0778 in
Material
Steel
Length Through Bore
2 in
Chain No.
140
Material Internal Use
Carbon Steel
Bushing Bore Size [Min]
0.938 in
Width Across Teeth
0.924 in
Hub O.D.
5.25 in
Construction Internal
Welded
Bushing Bore Size [Max]
3 in
No. of Strands Across
1
No. of Teeth
18
Hub Projection
1.08 in
Hardened Teeth
With Hardened Teeth
O.D.
10.975 in
Outside Dia.
10.975 in
Martin No.
140BTB18H
Bushing Bore [Min]
0.938 in
Weight
18.58 LB
EAN or UPC
697950043975
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