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