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 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
Bushing Bore Size [Min]
0.5 in
Single Strand Tooth Thickness
0.284 in
Outside Dia. [Min]
2.975 in
Hub Recess Width
0.19 in
Overall Length
1 in
Overall Length Less Threads
N/A
Chain Sprocket Number
40
Bushing Bore Size [Max]
1.25 in
Material External Use
Steel
Hub Recess Depth
0.09 in
Bore Type
Bushed
Bore Size [Max]
1.25 in
No. of Teeth
17
Hub OD @ Recess
2.2 in
Pitch Diameter
2.7211 in
Length Through Bore
1 in
Caliper Diameter
2.3975 in
Bushing Type
Taper Lock
Material
Steel
Bushing Series
1210
Hub Length
0.72 in
Inch/Metric
Inch
Construction Internal
Solid With Recess Groove
Bushing Bore [Max]
1.25 in
Bushing Bore [Min]
0.5 in
Hub Dia.
2 3/8 in
Chain Sprocket Pitch
0.5 in
Hub O.D.
2.375 in
Martin No.
40BTB17H
No. of Teeth Rows Strands
1
Hub Recessed
1
Chain No.
40
O.D.
2.975 in
Sprocket Style
B
Bore Size [Min]
0.5 in
Chain Pitch
0.500 in
Tooth Width
0.284 in
Pitch Dia.
2.721 in
Outside Dia.
2.975 in
Width Across Teeth
1 in
No. of Strands Across
1
Hub Projection
0.72 in
Material Internal Use
Carbon Steel
Type
B
Hardened Teeth
With Hardened Teeth
Weight
0.54 LB
EAN or UPC
697950043029
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