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