20C59

Metric Roller Chain Sprocket

Item #100967023

40 mm Minimum Bore

105 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.

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
Manufactured of high carbon steel

Specifications

Pitch Diameter [Min]	596.6 mm
No. of Teeth	59
Outside Dia.	617.19 mm
Chain Pitch	31.75 mm
Hub Length Thru	82 mm
Outside Dia. [Min]	617.19 mm
Pin Diameter	19.05 mm
No. of Strands Across	1
Family Name	No. 20 - 31.750 mm Pitch - Single - Type B & C
Root Diameter	577.5 mm
Bore Range [Min]	40 mm
Bore Range [Max]	105 mm
Caliper Diameter	577.29 mm
Martin No.	20C59
Hub Dia.	151.99 mm
Pitch Root Diameter	577.5 mm
Width Across Teeth	18.59 mm
Bore Style	Minimum Bore
Chain No.	20B, 20B-1
Material	Steel
Hardened Teeth	Without Hardened Teeth
Bore Type	Reborable
Single Strand Tooth Thickness	18.59 mm
Inch/Metric	Metric
Length Through Bore	81.99 mm
Series	C
Sprocket Style	C
Pitch Diameter	596.6 mm
Weight	93.12 LB
EAN or UPC	697950404660