D20B30

Metric Roller Chain Sprocket

Item #100967368

32 mm Minimum Bore

98 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

Outside Dia.	324.38 mm
Single Strand Tooth Thickness	18.19 mm
Hub Length Thru	61.81 mm
Hardened Teeth	Without Hardened Teeth
Pitch Diameter	303.7 mm
Pitch Diameter [Min]	303.7 mm
No. of Strands Across	2
Hub Dia.	145.01 mm
Series	B
Bore Type	Reborable
Bore Style	Minimum Bore
Bore Range [Min]	32 mm
Root Diameter	284.7 mm
Pitch Root Diameter	284.7 mm
Width Across Teeth	54.64 mm
Pin Diameter	19.05 mm
Length Through Bore	80.01 mm
Outside Dia. [Min]	324.38 mm
Chain Pitch	31.75 mm
Bore Range [Max]	98 mm
Chain No.	20B, 20B-2
No. of Teeth	30
Family Name	No. 20 - 31.750 mm Pitch - Double - Type B & C
Caliper Diameter	284.7 mm
Sprocket Style	B
Inch/Metric	Metric
Martin No.	20B30
Material	Steel
Weight	67.04 LB
EAN or UPC	697950405070