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 ISO standards
Manufactured of high carbon steel
Precise machining and processes ensure consistent finish and high quality
Bores are concentric to pitch line, minimizing run out
Chain rows are parallel and precisely spaced to increase longevity of sprocket and chain
Interchangeable with other manufacturers’ taper bushings
Bore Size [Min]
0.5 in
Pitch Dia.
2.88 in
Bushing Bore [Max]
31.75 mm
Inch/Metric
Metric
Width Across Teeth Rows
0.277 in
Overall Length
25.4 mm
Bushing Bore Size [Min]
0.5 in
Chain Pitch
0.500 in
Bushing Series
1210
Hub Length
24.38 mm
Bushing Bore Size [Max]
1.25 in
Hub Projection
24.38 mm
Outside Dia.
3.169 in
Material Internal Use
Carbon Steel
Material External Use
Steel
Width Across Teeth
7.37 mm
Type
B
Outside Dia. [Min]
80.5 mm
No. of Teeth
18
Root Diameter
64.63 mm
Pitch Diameter
73.14 mm
Material
Steel
Single Strand Tooth Thickness
0.29 in
Hub Dia.
62 mm
O.D.
3.169 in
No. of Teeth Rows Strands
1
Bore Type
Bushed
No. of Strands Across
1
Hardened Teeth
With Hardened Teeth
Sprocket Style
B
Hub O.D.
2.441 in
Bushing Bore [Min]
0.5 in
Chain No.
08B-1
Caliper Diameter
64.63 mm
Chain Sprocket Pitch
0.5 in
Overall Length Less Threads
N/A
Chain Sprocket Number
08B
Bore Size [Max]
1.25 in
Construction Internal
Solid With Recess
Bushing Type
Taper Lock
Length Through Bore
1 in
Weight
0.59 LB
EAN or UPC
697950408842
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