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

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