12A48

Metric Roller Chain Sprocket

Item #100966380

25.02 mm Minimum Bore

273.11 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	291.3 mm
Material	Steel
Outside Dia.	303.02 mm
Family Name	No. 12 - 19.050 mm Pitch - Single - A
Series	A
Hub Projection	N/A
Pitch Diameter [Min]	291.3 mm
Hardened Teeth	Without Hardened Teeth
Bore Range [Min]	25.02 mm
No. of Strands Across	1
Hub Length Thru	N/A
Hub Dia.	N/A
Single Strand Tooth Thickness	11.1 mm
Bore Style	Minimum Bore
Bore Type	Reborable
Inch/Metric	Metric
Width Across Teeth	11.1 mm
Length Through Bore	11.1 mm
Outside Dia. [Min]	303.02 mm
Root Diameter	279.2 mm
Chain Pitch	19.05 mm
Sprocket Style	A
Chain No.	12B, 12B-1
Martin No.	12A48
Bore Range [Max]	273.11 mm
Pitch Root Diameter	279.2 mm
No. of Teeth	48
Pin Diameter	12.065 mm
Caliper Diameter	279.21 mm
Weight	12.67 LB
EAN or UPC	697950401041