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
Hardened teeth sprockets afford longer chain and sprocket life
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’ Taper bushings
Stocked Heat Treat
Pitch Diameter
5.759 in
Bushing Bore [Max]
2 in
Type
B
No. of Teeth
18
Hardened Teeth
With Hardened Teeth
Material Internal Use
Carbon Steel
Construction Internal
Welded
Bore Size [Max]
2.875 in
Caliper Diameter
5.1338 in
Chain Sprocket Pitch
1 in
Chain Sprocket Number
80
Length Through Bore
1.25 in
No. of Teeth Rows Strands
1
Single Strand Tooth Thickness
0.575 in
Bushing Bore Size [Max]
2.875 in
Hub O.D.
3.563 in
Pitch Dia.
5.759 in
Tooth Width
0.575 in
Sprocket Style
B
Width Across Teeth
1.25 in
Hub Length
0.69 in
Inch/Metric
Inch
Bushing Type
Taper Lock
O.D.
6.271 in
Outside Dia.
6.271 in
Chain Pitch
1.000 in
Overall Length Less Threads
N/A
Hub Projection
0.69 in
Chain No.
80
Overall Length
1 1/4 in
Outside Dia. [Min]
6.2710 in
Bore Type
Bushed
Bushing Bore [Min]
1/2 in
No. of Strands Across
1
Bushing Series
2012
Material
Steel
Material External Use
Steel
Hub Dia.
3 9/16 in
Martin No.
80BTB18H
Weight
3.87 LB
EAN or UPC
697950043579
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