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

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