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

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