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
Bushing Bore [Max]
3 in
Chain No.
140
Overall Length
2 in
Martin No.
140BTB17H
Outside Dia.
10.412 in
Single Strand Tooth Thickness
0.924 in
Chain Sprocket Pitch
1.75 in
Sprocket Style
B
Pitch Diameter
9.5238 in
Tooth Width
0.924 in
Overall Length Less Threads
N/A
Caliper Diameter
8.4832 in
Bushing Bore Size [Min]
0.938 in
Hub Dia.
5 1/4 in
Hardened Teeth
With Hardened Teeth
O.D.
10.412 in
No. of Teeth Rows Strands
1
Bore Size [Max]
3 in
Bushing Bore [Min]
0.938 in
Bore Type
Bushed
Bushing Series
3020
Chain Sprocket Number
140
Material
Steel
Hub Length
1.08 in
Material Internal Use
Carbon Steel
Bushing Type
Taper Lock
Outside Dia. [Min]
10.412 in
Construction Internal
Welded
Hub O.D.
5.25 in
Bushing Bore Size [Max]
3 in
No. of Teeth
17
Pitch Dia.
9.524 in
Chain Pitch
1.750 in
Length Through Bore
2 in
Type
B
Width Across Teeth
0.924 in
No. of Strands Across
1
Material External Use
Steel
Hub Projection
1.08 in
Bore Size [Min]
0.938 in
Inch/Metric
Inch
Weight
16.1 LB
EAN or UPC
697950043968
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