20A39

Metric Roller Chain Sprocket

Item #100966913

32 mm Minimum Bore

365.06 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

No. of Strands Across	1
Bore Range [Min]	32 mm
Outside Dia.	415.21 mm
Bore Style	Minimum Bore
Pin Diameter	19.05 mm
Pitch Root Diameter	375.5 mm
Hub Dia.	N/A
Length Through Bore	18.59 mm
Sprocket Style	A
No. of Teeth	39
Pitch Diameter	394.6 mm
Hub Length Thru	N/A
Pitch Diameter [Min]	394.6 mm
Root Diameter	375.5 mm
Material	Steel
Single Strand Tooth Thickness	18.59 mm
Family Name	No. 20 - 31.750 mm Pitch - Single - A
Series	A
Width Across Teeth	18.59 mm
Martin No.	20A39
Caliper Diameter	375.2 mm
Bore Type	Reborable
Hardened Teeth	Without Hardened Teeth
Hub Projection	N/A
Chain Pitch	31.75 mm
Inch/Metric	Metric
Bore Range [Max]	365.06 mm
Chain No.	20B, 20B-1
Outside Dia. [Min]	415.21 mm
Weight	33.95 LB
EAN or UPC	697950404271