20A13

Metric Roller Chain Sprocket

Item #100966887

25.02 mm Minimum Bore

100.58 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.

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

Specifications

Chain No.	20B, 20B-1
Root Diameter	113.6 mm
Hub Length Thru	N/A
Hardened Teeth	Without Hardened Teeth
Material	Steel
No. of Teeth	13
Length Through Bore	18.59 mm
Series	A
Bore Type	Reborable
Caliper Diameter	112.65 mm
Single Strand Tooth Thickness	18.59 mm
Chain Pitch	31.75 mm
Bore Range [Min]	25.02 mm
Family Name	No. 20 - 31.750 mm Pitch - Single - A
Pitch Diameter [Min]	132.7 mm
Pin Diameter	19.05 mm
Hub Projection	N/A
Inch/Metric	Metric
Pitch Root Diameter	113.6 mm
Pitch Diameter	132.7 mm
Hub Dia.	N/A
Width Across Teeth	18.59 mm
Bore Range [Max]	100.58 mm
No. of Strands Across	1
Bore Style	Minimum Bore
Outside Dia. [Min]	153.31 mm
Sprocket Style	A
Outside Dia.	153.31 mm
Martin No.	20A13
Weight	4.8 LB
EAN or UPC	697950403755