Lead-in chamfers

To install radial shaft seals without damaging the sealing lip, SKF recommends chamfering or rounding the shaft ends or shoulders (table).
If the direction of installation is Z, the values provided in the table should be adhered to. If the direction of installation is Y, the shaft end should be rounded or chamfered.
To install a seal over a shaft shoulder or end that has not been rounded or chamfered, SKF recommends using an installation sleeve. For additional information, refer to the section Seal installation, heavy industrial applications.
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