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

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