20A30

Metric Roller Chain Sprocket

Item #100966904

32 mm Minimum Bore

273.84 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 Teeth	30
Bore Type	Reborable
Chain No.	20B, 20B-1
Bore Style	Minimum Bore
Sprocket Style	A
Root Diameter	284.7 mm
Bore Range [Min]	32 mm
Pitch Root Diameter	284.7 mm
Chain Pitch	31.75 mm
Pin Diameter	19.05 mm
Martin No.	20A30
Hub Projection	N/A
Outside Dia. [Min]	324.38 mm
Caliper Diameter	284.7 mm
Width Across Teeth	18.59 mm
Pitch Diameter	303.7 mm
Length Through Bore	18.59 mm
Hub Dia.	N/A
Material	Steel
Inch/Metric	Metric
Single Strand Tooth Thickness	18.59 mm
Bore Range [Max]	273.84 mm
Hub Length Thru	N/A
Pitch Diameter [Min]	303.7 mm
Family Name	No. 20 - 31.750 mm Pitch - Single - A
Series	A
Outside Dia.	324.38 mm
No. of Strands Across	1
Hardened Teeth	Without Hardened Teeth
Weight	1.76 LB
EAN or UPC	697950404097