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’ split-taper bushings
No. of Strands Across
1
No. of Teeth
21
Hardened Teeth
With Hardened Teeth
Bushing Bore [Max]
3.75 in
Length Through Bore
2 in
Key Way Size
0.75 in
Bore Type
Bushed
Sprocket Style
B
Overall Length Less Threads
N/A
Material Internal Use
Carbon Steel
Chain Sprocket Number
140
Chain No.
140
Bore Size [Min]
1.125 in
Keyway Size
0.75 in
Bushing Bore Size [Max]
3.75 in
Caliper Diameter
10.7088 in
Overall Length
3.15625 in
Keyway
w/Keyway
Pitch Diameter
11.7416 in
Tooth Width
0.924 in
O.D.
12.66 in
Chain Sprocket Pitch
1.75 in
Construction Internal
Welded
Bushing Series
R1
No. of Teeth Rows Strands
1
Hub Dia.
5 1/2 in
Hub Length
1.08 in
Chain Pitch
1.750 in
Pitch Dia.
11.742 in
Material External Use
Steel
Hub Projection
1.08 in
Single Strand Tooth Thickness
0.924 in
Bore Size [Max]
3.75 in
Bushing Bore Size [Min]
1.125 in
Hub O.D.
5.5 in
Width Across Teeth
0.924 in
Type
B
Outside Dia. [Min]
12.66 in
Bushing Type
Split Taper
Outside Dia.
12.66 in
Inch/Metric
Inch
Bushing Bore [Min]
1.125 in
Material
Steel
Weight
26.07 LB
EAN or UPC
697950125824
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