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
Chain Pitch
1.000 in
Hub Dia.
3 1/4 in
Construction Internal
Solid
Chain No.
80
Width Across Teeth
1.5 in
O.D.
5.305 in
Sprocket Style
B
Hardened Teeth
With Hardened Teeth
Material
Steel
Martin No.
80BTB15H
Bore Size [Max]
2.625 in
Outside Dia. [Min]
5.3050 in
Single Strand Tooth Thickness
0.575 in
Overall Length Less Threads
N/A
Inch/Metric
Inch
Hub O.D.
3.25 in
Tooth Width
0.575 in
Pitch Dia.
4.81 in
Pitch Diameter
4.810 in
Length Through Bore
1.5 in
Bushing Bore [Max]
1 5/8 in
Bushing Series
1615
Bushing Bore [Min]
1/2 in
Bushing Bore Size [Max]
2.625 in
No. of Teeth Rows Strands
1
Material External Use
Steel
Bore Type
Bushed
Type
B
No. of Strands Across
1
Overall Length
1 1/2 in
Chain Sprocket Pitch
1 in
Caliper Diameter
4.1584 in
Chain Sprocket Number
80
No. of Teeth
15
Hub Projection
0.92 in
Bushing Type
Taper Lock
Hub Length
0.92 in
Outside Dia.
5.305 in
Material Internal Use
Atomized Metals
Weight
1.34 LB
EAN or UPC
697950043548
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