20C84

Metric Roller Chain Sprocket

Item #100967029

40 mm Minimum Bore

125 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

Martin No.	20C84
Chain No.	20B, 20B-1
Hub Dia.	177.8 mm
Sprocket Style	C
Outside Dia. [Min]	869.77 mm
No. of Teeth	84
Width Across Teeth	18.59 mm
Series	C
Single Strand Tooth Thickness	18.59 mm
Root Diameter	830.1 mm
Pitch Root Diameter	830.1 mm
Family Name	No. 20 - 31.750 mm Pitch - Single - Type B & C
Caliper Diameter	32.6803 in
Bore Type	Reborable
No. of Strands Across	1
Bore Range [Min]	40 mm
Outside Dia.	869.77 mm
Length Through Bore	95 mm
Pitch Diameter	849.1 mm
Pitch Diameter [Min]	849.1 mm
Material	Steel
Hardened Teeth	Without Hardened Teeth
Bore Style	Minimum Bore
Pin Diameter	19.05 mm
Hub Length Thru	95 mm
Inch/Metric	Metric
Bore Range [Max]	125 mm
Chain Pitch	31.75 mm
Weight	172.9 LB
EAN or UPC	697950404783