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