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
Bushing Series
1008
Material External Use
Steel
Tooth Width
0.275 in
Chain Sprocket Pitch
0.5 in
Bushing Type
Taper Lock
Bore Size [Max]
1 in
Chain No.
40-2
Bore Type
Bushed
Bushing Bore Size [Max]
1 in
Material Internal Use
Carbon Steel
Length Through Bore
0.837 in
No. of Teeth
15
Hardened Teeth
With Hardened Teeth
Outside Dia.
2.652 in
Overall Length
7/8 in
Pitch Dia.
2.405 in
O.D.
2.652 in
Width Across Teeth
0.841 in
No. of Strands Across
2
Inch/Metric
Inch
Hub O.D.
1.813 in
Chain Pitch
0.500 in
Martin No.
40BTB15H
Bushing Bore [Max]
1 in
Overall Length Less Threads
N/A
Chain Sprocket Number
40
Sprocket Style
A
Bore Size [Min]
0.5 in
No. of Teeth Rows Strands
2
Construction Internal
Solid
Single Strand Tooth Thickness
0.275 in
Hub Dia.
1.266 in
Bushing Bore Size [Min]
0.5 in
Bushing Bore [Min]
0.5 in
Type
A
Pitch Diameter
2.400 in
Outside Dia. [Min]
2.6520 in
Caliper Diameter
2.08 in
Material
Steel
Weight
0.51 LB
EAN or UPC
697950030890
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