20A58

Metric Roller Chain Sprocket

Item #100966932

40 mm Minimum Bore

557.36 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

Length Through Bore	18.59 mm
Bore Range [Min]	40 mm
Outside Dia.	607.09 mm
Material	Steel
Pitch Diameter	586.5 mm
Root Diameter	567.4 mm
Pin Diameter	19.05 mm
Single Strand Tooth Thickness	18.59 mm
Pitch Diameter [Min]	586.5 mm
Chain Pitch	31.75 mm
Hub Length Thru	N/A
Sprocket Style	A
Hardened Teeth	Without Hardened Teeth
Series	A
Pitch Root Diameter	567.4 mm
Bore Range [Max]	557.36 mm
Outside Dia. [Min]	607.09 mm
Chain No.	20B, 20B-1
Inch/Metric	Metric
Martin No.	20A58
Family Name	No. 20 - 31.750 mm Pitch - Single - A
Bore Style	Minimum Bore
Hub Projection	N/A
No. of Strands Across	1
Bore Type	Reborable
Hub Dia.	N/A
No. of Teeth	58
Width Across Teeth	18.59 mm
Caliper Diameter	567.4 mm
Weight	78.92 LB
EAN or UPC	697950404653