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MISALIGNMENT AND ECCENTRICITY Misalignment between the shaft and bore is a static condition caused by their center-lines being offset. Evidence of this condition is seen by a wear pattern on the lip that is wider on one side of the seal. Shaft-to-bore misalignment should not exceed .003 inches (0.08...

HOW TO INDICATE A HELIX LIP DESIGN If your design includes a helix lip, the appropriate suffix must be added to the part number. Add the suffix CW if the shaft rotates in a clockwise direction when viewed from the air side of the seal; CCW if the shaft rotates in a counterclockwise direction whe...

BORE REQUIREMENTS The same four factors which concern the shaft apply to the bore as well: surface finish, hardness, chamfer, and tolerance. BORE FINISH A bore surface that is too rough may cause leakage between the bore and the seal. Here are the maximum bore finishes recommended for metal and rubb...

Automotive Valve Stem Seal Disk Brake Boots used on heavy truck axles Fastener seals used to seal under the head of a bolt or stud Rubber Shaft Seals with metal dirt exclusion case Automotive Valve Cover Grommet Automotive Valve Cover Grommet Rubber Seal with metal dirt excluder case used in the law...