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
Chain Sprocket Pitch
1.75 in
Construction Internal
Welded
Hardened Teeth
With Hardened Teeth
Bushing Bore [Max]
3 in
Length Through Bore
2 in
Sprocket Style
B
Chain No.
140
Hub Projection
1.08 in
Overall Length
2 in
Pitch Dia.
8.97 in
Hub Length
1.08 in
Material External Use
Steel
Bushing Bore Size [Min]
0.938 in
Single Strand Tooth Thickness
0.924 in
Chain Pitch
1.750 in
No. of Teeth Rows Strands
1
No. of Teeth
16
No. of Strands Across
1
Hub O.D.
5.25 in
O.D.
9.848 in
Bore Type
Bushed
Outside Dia. [Min]
9.848 in
Width Across Teeth
0.924 in
Tooth Width
0.924 in
Hub Dia.
5 1/4 in
Outside Dia.
9.848 in
Bushing Series
3020
Bore Size [Min]
0.938 in
Bushing Type
Taper Lock
Inch/Metric
Inch
Bushing Bore [Min]
0.938 in
Caliper Diameter
7.9702 in
Pitch Diameter
8.9702 in
Martin No.
140BTB16H
Bushing Bore Size [Max]
3 in
Chain Sprocket Number
140
Overall Length Less Threads
N/A
Material
Steel
Bore Size [Max]
3 in
Material Internal Use
Carbon Steel
Type
B
Weight
14.46 LB
EAN or UPC
697950043951
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