20A18

Metric Roller Chain Sprocket

Item #100966892

25.03 mm Minimum Bore

151.83 mm Maximum Bore

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Product Details

Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at an angle to keyseat.

Manufactured of high carbon steel
Precise machining and processes ensure consistent finish and high quality
Bores are concentric to pitch line, minimizing run out
Chain rows are parallel and precisely spaced to increase longevity of sprocket and chain

Specifications

Bore Range [Max]	151.83 mm
Pitch Diameter [Min]	182.8 mm
Hub Length Thru	N/A
Outside Dia. [Min]	203.48 mm
Root Diameter	163.8 mm
Single Strand Tooth Thickness	18.59 mm
Hub Projection	N/A
Pin Diameter	19.05 mm
No. of Teeth	18
Width Across Teeth	18.59 mm
No. of Strands Across	1
Material	Steel
Bore Style	Minimum Bore
Martin No.	20A18
Hardened Teeth	Without Hardened Teeth
Bore Range [Min]	25.03 mm
Series	A
Chain No.	20B, 20B-1
Family Name	No. 20 - 31.750 mm Pitch - Single - A
Hub Dia.	N/A
Length Through Bore	18.59 mm
Inch/Metric	Metric
Sprocket Style	A
Bore Type	Reborable
Pitch Diameter	182.8 mm
Pitch Root Diameter	163.8 mm
Outside Dia.	203.48 mm
Caliper Diameter	163.79 mm
Chain Pitch	31.75 mm
Weight	7.0 LB
EAN or UPC	697950403854