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 Series
R1
Bushing Bore [Min]
1.125 in
Keyway
w/Keyway
Bore Size [Max]
3.75 in
No. of Teeth Rows Strands
1
Bushing Type
Split Taper
Pitch Dia.
13.963 in
Bushing Bore Size [Max]
3.75 in
Outside Dia.
14.903 in
Material External Use
Steel
Bore Type
Bushed
Outside Dia. [Min]
14.903 in
Hub Length
1.08 in
Length Through Bore
2 in
Bushing Bore Size [Min]
1.125 in
No. of Teeth
25
Chain Sprocket Pitch
1.75 in
Bore Size [Min]
1.125 in
Overall Length
3.15625 in
Inch/Metric
Inch
Sprocket Style
B
Keyway Size
0.75 in
Hardened Teeth
With Hardened Teeth
Chain Pitch
1.750 in
Bushing Bore [Max]
3.75 in
Hub Projection
1.08 in
Width Across Teeth
0.924 in
Tooth Width
0.924 in
Material Internal Use
Carbon Steel
Type
C
No. of Strands Across
1
O.D.
14.903 in
Pitch Diameter
13.9628 in
Overall Length Less Threads
N/A
Hub Dia.
5 1/2 in
Chain No.
140
Caliper Diameter
12.9352 in
Key Way Size
0.75 in
Material
Steel
Hub O.D.
5.5 in
Chain Sprocket Number
140
Construction Internal
Welded
Single Strand Tooth Thickness
0.924 in
Weight
36.97 LB
EAN or UPC
697950125862
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