20A8

Metric Roller Chain Sprocket

Item #100966882

25.02 mm Minimum Bore

48.41 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

Single Strand Tooth Thickness	18.59 mm
Inch/Metric	Metric
Hub Length Thru	N/A
Bore Style	Minimum Bore
Pin Diameter	19.05 mm
Width Across Teeth	18.59 mm
Bore Range [Max]	48.41 mm
Length Through Bore	18.59 mm
Bore Range [Min]	25.02 mm
Outside Dia. [Min]	103.6 mm
No. of Strands Across	1
Pitch Root Diameter	63.9 mm
Series	A
Outside Dia.	103.6 mm
No. of Teeth	8
Pitch Diameter [Min]	83 mm
Family Name	No. 20 - 31.750 mm Pitch - Single - A
Hub Projection	N/A
Root Diameter	63.9 mm
Caliper Diameter	63.92 mm
Martin No.	20A8
Sprocket Style	A
Hub Dia.	N/A
Chain No.	20B, 20B-1
Bore Type	Reborable
Hardened Teeth	Without Hardened Teeth
Material	Steel
Pitch Diameter	83 mm
Chain Pitch	31.75 mm
Weight	1.15 LB
EAN or UPC	697950403656