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

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