20B33

Metric Roller Chain Sprocket

Item #100966969

31.83 mm Minimum Bore

86 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

Chain No.	20B, 20B-1
No. of Teeth	33
Hardened Teeth	Without Hardened Teeth
Pin Diameter	19.05 mm
Hub Length Thru	51 mm
Pitch Diameter	334 mm
Chain Pitch	31.75 mm
Inch/Metric	Metric
Bore Type	Reborable
Bore Range [Max]	86 mm
Length Through Bore	51 mm
Pitch Diameter [Min]	334 mm
Material	Steel
Family Name	No. 20 - 31.750 mm Pitch - Single - Type B & C
Single Strand Tooth Thickness	18.59 mm
Root Diameter	315 mm
Outside Dia. [Min]	354.65 mm
Bore Range [Min]	31.83 mm
Width Across Teeth	18.59 mm
Martin No.	20B33
Outside Dia.	354.65 mm
Caliper Diameter	314.59 mm
Pitch Root Diameter	315 mm
Bore Style	Minimum Bore
Hub Dia.	127 mm
Series	B
No. of Strands Across	1
Sprocket Style	B
Weight	32.16 LB
EAN or UPC	697950404141