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
Hub Dia.
4 1/2 in
Hardened Teeth
With Hardened Teeth
Bore Size [Max]
3.063 in
Hub O.D.
4.5 in
Construction Internal
Welded
Bore Type
Bushed
Chain Sprocket Number
100
Pitch Diameter
6.803 in
Chain Pitch
1.250 in
Material Internal Use
Carbon Steel
No. of Teeth Rows Strands
1
Sprocket Style
B
Chain No.
100
No. of Teeth
17
Material
Steel
Overall Length
1 3/4 in
Caliper Diameter
6.0237 in
Length Through Bore
1.75 in
Hub Length
1.06 in
Outside Dia.
7.437 in
Pitch Dia.
6.803 in
Chain Sprocket Pitch
1.25 in
Material External Use
Steel
No. of Strands Across
1
Bushing Series
2517
Bushing Type
Taper Lock
Hub Projection
1.06 in
O.D.
7.437 in
Overall Length Less Threads
N/A
Single Strand Tooth Thickness
0.692 in
Bushing Bore [Max]
2 1/2 in
Bushing Bore [Min]
1/2 in
Bushing Bore Size [Max]
3.063 in
Martin No.
100BTB17H
Width Across Teeth
1.75 in
Inch/Metric
Inch
Type
B
Outside Dia. [Min]
7.4370 in
Tooth Width
0.692 in
Weight
7.13 LB
EAN or UPC
697950043739
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