20A43

Metric Roller Chain Sprocket

Item #100966917

32 mm Minimum Bore

405.56 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

Width Across Teeth	18.59 mm
Pitch Root Diameter	415.9 mm
No. of Strands Across	1
Bore Type	Reborable
Outside Dia.	455.6 mm
Root Diameter	415.9 mm
Family Name	No. 20 - 31.750 mm Pitch - Single - A
Bore Style	Minimum Bore
Hub Projection	N/A
Inch/Metric	Metric
Series	A
Outside Dia. [Min]	455.6 mm
Pitch Diameter	435 mm
Pin Diameter	19.05 mm
No. of Teeth	43
Sprocket Style	A
Bore Range [Min]	32 mm
Caliper Diameter	415.62 mm
Hub Dia.	N/A
Length Through Bore	18.59 mm
Material	Steel
Bore Range [Max]	405.56 mm
Hardened Teeth	Without Hardened Teeth
Chain No.	20B, 20B-1
Pitch Diameter [Min]	435 mm
Chain Pitch	31.75 mm
Hub Length Thru	N/A
Single Strand Tooth Thickness	18.59 mm
Martin No.	20A43
Weight	43.6 LB
EAN or UPC	697950404356