20A34

Metric Roller Chain Sprocket

Item #100966908

32 mm Minimum Bore

314.4 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

Pitch Diameter	344.1 mm
Bore Range [Min]	32 mm
Hub Length Thru	N/A
Caliper Diameter	325.05 mm
Hardened Teeth	Without Hardened Teeth
Bore Range [Max]	314.4 mm
No. of Strands Across	1
Martin No.	20A34
Sprocket Style	A
Series	A
Bore Style	Minimum Bore
Width Across Teeth	18.59 mm
Pitch Diameter [Min]	344.1 mm
Inch/Metric	Metric
Material	Steel
Chain No.	20B, 20B-1
Family Name	No. 20 - 31.750 mm Pitch - Single - A
Length Through Bore	18.59 mm
Hub Projection	N/A
Chain Pitch	31.75 mm
Outside Dia. [Min]	364.74 mm
Bore Type	Reborable
Pin Diameter	19.05 mm
Single Strand Tooth Thickness	18.59 mm
Outside Dia.	364.74 mm
Root Diameter	325.1 mm
Pitch Root Diameter	325.1 mm
Hub Dia.	N/A
No. of Teeth	34
Weight	28.66 LB
EAN or UPC	697950404172