SKF Sealing washer series Z

Sealing washers of the Z type form efficient labyrinth seals which can be used in a wide variety of applications. They provide inexpensive solutions to many sealing problems. Their use is recommended in the first instance for simple bearing arrangements subjected to arduous operating conditions.

There are two types of sealing washer: the standard design and the flocked design which is intended for difficult operating conditions. Depending on the degree of contamination and the desired relubrication interval, up to four sets of sealing washers may be mounted immediately adjacent to each other. The sealing washers may also be combined with other standard seals.

Sealing washers, standard design
The standard sealing washers are intended for normal operating conditions, e.g. for conveyor rollers and various types of pulleys.
A set of standard design sealing washers comprises one shaft and one housing washer. The washers are made of sheet steel, and are phosphated and coated with a preservative. The outside diameter of the housing washer and the bore of the shaft washer are slightly tapered so that the washers will have a tight fit after mounting.