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 No.
100
Width Across Teeth
2 in
Single Strand Tooth Thickness
0.692 in
Bushing Type
Taper Lock
Bore Size [Max]
3.438 in
Material External Use
Steel
Bushing Bore [Min]
7/8 in
Bushing Bore [Max]
3 in
Martin No.
100BTB30H
O.D.
12.643 in
Pitch Diameter
11.959 in
Sprocket Style
B
Overall Length Less Threads
N/A
Inch/Metric
Inch
Caliper Diameter
11.2085 in
Type
B
Material Internal Use
Carbon Steel
Hub Length
1.31 in
Hub O.D.
5.25 in
Chain Sprocket Number
100
Construction Internal
Welded
Outside Dia. [Min]
12.6430 in
Length Through Bore
2 in
Chain Pitch
1.250 in
Material
Steel
Pitch Dia.
11.959 in
Chain Sprocket Pitch
1.25 in
Overall Length
2 in
No. of Strands Across
1
Outside Dia.
12.643 in
Bushing Bore Size [Max]
3.438 in
Bushing Series
3020
No. of Teeth
30
Hardened Teeth
With Hardened Teeth
Tooth Width
0.692 in
Hub Dia.
5 1/4 in
Bore Type
Bushed
Hub Projection
1.31 in
No. of Teeth Rows Strands
1
Weight
24.06 LB
EAN or UPC
697950043814
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