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