Deep groove ball bearings

SKF inch bearings in the EE(B), RLS and RMS series are intended as aftermarket items and, therefore, SKF recommends not using these bearings for new bearing arrangement designs.

SKF can also supply bearings with a tapered bore. For detailed information, contact SKF.

Capped bearings
×
Selection guidelines for different capping devices under various operating conditions are listed in table 1. However, these guidelines cannot substitute for testing a shield or seal in its application. For additional information, refer to Integral sealing.

The seals, which are fitted in a recess on the outer ring, make good, positive contact with the recess, without deforming the outer ring. The capping devices are available as:

Shields

are identified by the designation suffix Z
are primarily intended for applications where the inner ring rotates
are fitted in the outer ring and form a narrow gap with the inner ring
are made of sheet steel
are available as standard with an extension in the shield bore, expect some sizes without extension
protect from dirt and debris without friction losses

Non-contact seals

are identified by the designation suffix RZ
provide better sealing effectiveness than shields
can be operated at the same speeds as shields
form an extremely narrow gap with the inner ring shoulder
are made of sheet steel reinforced NBR (oil- and wear-resistant)

Low-friction seals

are identified by the designation suffixes RSL or RST
provide better sealing effectiveness than non-contact seals
are made of sheet steel reinforced NBR (oil and wear-resistant)

RSL design:

can be operated at the same speeds as shields
make virtually no contact with a recess in the inner ring shoulder
are available for 60, 62, 63 series bearings in two designs, depending on the size

RST design:

make positive contact with a recess in the inner ring shoulder for good sealing effectiveness
are available on request for 60, 62 and 63 series bearings in three RST designs, depending on the size
Contact seals
are identified by the designation suffixes RSH, RSH2, RS1 or RS2
are made of sheet steel reinforced

NBR
FKM (designation suffix RS2 or RSH2, available on request)

are available in different designs depending on the bearing they are used with:
for 60, 62 and 63 series bearings in two RSH designs, depending on the size
for RS1 designs, with sealing either against the inner ring shoulder or against a recess in the inner ring side face; the relevant design is determined by dimension d1 or d2 in the product table.