20A15

Metric Roller Chain Sprocket

Item #100966889

25.02 mm Minimum Bore

121.14 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.

Chain rows are parallel and precisely spaced to increase longevity of sprocket and chain
Manufactured of high carbon steel
Precise machining and processes ensure consistent finish and high quality
Bores are concentric to pitch line, minimizing run out

Specifications

Caliper Diameter	132.82 mm
Root Diameter	133.7 mm
Martin No.	20A15
Hardened Teeth	Without Hardened Teeth
Length Through Bore	18.59 mm
Inch/Metric	Metric
Bore Range [Min]	25.02 mm
Chain No.	20B, 20B-1
No. of Teeth	15
Pin Diameter	19.05 mm
Family Name	No. 20 - 31.750 mm Pitch - Single - A
Bore Style	Minimum Bore
Outside Dia.	173.35 mm
Pitch Diameter	152.7 mm
Width Across Teeth	18.59 mm
Pitch Diameter [Min]	152.7 mm
Sprocket Style	A
Hub Length Thru	N/A
Single Strand Tooth Thickness	18.59 mm
Chain Pitch	31.75 mm
No. of Strands Across	1
Hub Projection	N/A
Bore Type	Reborable
Pitch Root Diameter	133.7 mm
Material	Steel
Outside Dia. [Min]	173.35 mm
Hub Dia.	N/A
Bore Range [Max]	121.14 mm
Series	A
Weight	5.9 LB
EAN or UPC	697950403793