D20B27

Metric Roller Chain Sprocket

Item #100967366

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

Root Diameter	254.4 mm
Hub Dia.	145.01 mm
Single Strand Tooth Thickness	18.19 mm
Hardened Teeth	Without Hardened Teeth
Series	B
Pitch Diameter	273.5 mm
Bore Range [Min]	32 mm
Outside Dia.	294.13 mm
Width Across Teeth	54.64 mm
Outside Dia. [Min]	294.13 mm
Martin No.	20B27
Pitch Root Diameter	254.4 mm
No. of Strands Across	2
No. of Teeth	27
Pitch Diameter [Min]	273.5 mm
Length Through Bore	80.01 mm
Bore Style	Minimum Bore
Chain No.	20B, 20B-2
Bore Type	Reborable
Family Name	No. 20 - 31.750 mm Pitch - Double - Type B & C
Inch/Metric	Metric
Chain Pitch	31.75 mm
Caliper Diameter	253.98 mm
Material	Steel
Hub Length Thru	80 mm
Bore Range [Max]	98 mm
Pin Diameter	19.05 mm
Sprocket Style	B
Weight	55.04 LB
EAN or UPC	697950405056