D28B30

Metric Roller Chain Sprocket

Item #100967428

40 mm Minimum Bore

126 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

Chain Pitch	44.45 mm
Pitch Diameter [Min]	425.2 mm
Pitch Root Diameter	397.3 mm
No. of Strands Across	2
Outside Dia. [Min]	452.87 mm
Bore Range [Min]	40 mm
Family Name	No. 28 - 44.450 mm Pitch - Double - Type B & C
Bore Type	Reborable
Pitch Diameter	425.2 mm
Single Strand Tooth Thickness	28.83 mm
Chain No.	28B, 28B-2
Pin Diameter	27.94 mm
Bore Style	Minimum Bore
Length Through Bore	119.99 mm
Caliper Diameter	397.3 mm
Martin No.	28B30
Root Diameter	397.3 mm
Width Across Teeth	88.39 mm
Inch/Metric	Metric
Hub Length Thru	120 mm
Outside Dia.	452.87 mm
No. of Teeth	30
Bore Range [Max]	126 mm
Hardened Teeth	Without Hardened Teeth
Material	Steel
Hub Dia.	178 mm
Series	B
Sprocket Style	B
Weight	196.56 LB
EAN or UPC	697950407333