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
Tooth Width
0.575 in
Construction Internal
Solid
Hub O.D.
3.563 in
Pitch Diameter
5.126 in
Width Across Teeth
1.25 in
Hardened Teeth
With Hardened Teeth
No. of Strands Across
1
Bushing Bore [Max]
2 in
Material External Use
Steel
No. of Teeth
16
Inch/Metric
Inch
Material Internal Use
Atomized Metals
Martin No.
80BTB16H
Chain Sprocket Number
80
Sprocket Style
B
Outside Dia.
5.627 in
Material
Steel
Type
B
Outside Dia. [Min]
5.6270 in
Length Through Bore
1.25 in
Chain Sprocket Pitch
1 in
Hub Projection
0.67 in
Single Strand Tooth Thickness
0.575 in
Hub Dia.
3 9/16 in
Bushing Bore [Min]
1/2 in
Bore Type
Bushed
Bushing Series
2012
Overall Length Less Threads
N/A
O.D.
5.627 in
No. of Teeth Rows Strands
1
Overall Length
1 1/4 in
Bushing Type
Taper Lock
Hub Length
0.67 in
Chain Pitch
1.000 in
Pitch Dia.
5.126 in
Bushing Bore Size [Max]
2.75 in
Caliper Diameter
4.5008 in
Bore Size [Max]
2.75 in
Chain No.
80
Weight
1.34 LB
EAN or UPC
697950043555
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