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
1.250 in
Bushing Bore [Min]
1/2 in
Bushing Series
2517
Outside Dia.
7.839 in
Single Strand Tooth Thickness
0.692 in
Material Internal Use
Carbon Steel
Bushing Bore [Max]
2 1/2 in
Inch/Metric
Inch
Material
Steel
Overall Length
1 3/4 in
Bushing Bore Size [Max]
3.063 in
Material External Use
Steel
Bore Size [Max]
3.063 in
No. of Teeth Rows Strands
1
Construction Internal
Welded
Martin No.
100BTB18H
Bore Type
Bushed
Width Across Teeth
1.75 in
Hardened Teeth
With Hardened Teeth
Pitch Dia.
7.199 in
No. of Teeth
18
Hub O.D.
4.5 in
Tooth Width
0.692 in
Length Through Bore
1.75 in
Chain No.
100
No. of Strands Across
1
Overall Length Less Threads
N/A
Hub Projection
1.06 in
Hub Dia.
4 1/2 in
O.D.
7.839 in
Hub Length
1.06 in
Sprocket Style
B
Chain Sprocket Pitch
1.25 in
Outside Dia. [Min]
7.8390 in
Bushing Type
Taper Lock
Type
B
Caliper Diameter
6.4485 in
Chain Sprocket Number
100
Pitch Diameter
7.199 in
Weight
7.95 LB
EAN or UPC
697950043746
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