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

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