The rubber gives a good sealing capability, even when the housing is not fully in tolerance. The sealing lip with spring provides interference on the shaft for 

the housing bore surface, the recommended tolerances for the outside diameter of the seal are overlooked when selecting an oil seal for an application.

Oil Seal Standard Tolerances - mm Single and Dual Lip Spring Loaded Bonded Seals (1) Seal O.D.: The average of a minimum of three measurements to be taken at equally spaced positions. (2) Out of Round (OOR): The maximum variance between any of the readings used in determining seal O. D.

Shaft Housing Complete Replacement V-ringonly Felt DoubleLip Labyrinth End Dia. V-ring Current Former Seal seal Seal Cover da sealnr pt.nr. pt.nr. C GorL S 2/pkg 2/pkg 2/pkg 2/pkg 2/pkg 1/pkg 1/pkg.2 1 ⁄ 16 SNL516-613 TSN516A 400700 V70A TSN516C TSN516GA TSN516SA ASNH516-613. SNL519-616 TSN616A 400700 V70A TSN616C TSN616GA TSN616SA ASNH519-616

Many SKF seals have the patented Waveseal® lip design Bore tolerance charts seals through a central groove in the seal housing bore.

spray water and the loss of grease; are resistant to undoped lubricants with a mineral oil ╳ Application: housing. Sealing integrity, Satisfactory

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To facilitate seal installation, the entrance to the bore should have a 5-10 degree chamfer, 1.0-1.5 mm deep. bore-tolerance. SEALS - Technical Info. Axial Face 

Either a clearance or interference fit may occur depending on the actual sizes of the bearing bore and shaft, or outer ring and housing. The resulting fit will be dependent on the tolerances of two points of contact - either the bearing bore and the shaft or the housing and bearing O.D. It will be unusual for a shaft and housing fit to be the same.

Housing Tolerances- Inch. Specialists in Seals & Service www.hitechseals.com. Bore Diameter (mm). Bore Tolerance. Shaft Diameter. Tolerance in (mm).

Most of these components have very tight tolerances, so maintaining this accuracy is important in their performance. This is especially critical for oil seals