Sealed type, Spherical roller bearings

Sealed type, spherical roller bearings

• have the same features and internal design as open spherical roller bearings

• are available with a cylindrical bore as standard

• are supplied grease lubricated and should not be washed

• are equipped with an annular groove and three lubrication holes in the outer ring, except for those with the designation suffix W

• are fitted with a contact seal, on one or both sides, made of one of the following materials:

• sheet steel reinforced NBR (designation suffix CS or RS)

• sheet steel reinforced HNBR (designation suffix CS5 or RS5)

• sheet steel reinforced FKM (designation suffix CS2)

• The seals are fitted in a recess on the outer ring and seal against the inner ring (fig. 5). On larger bearings, the seals are fixed by a retaining ring .

Bearings sealed on both sides are lubricated for the life of the bearing and are virtually maintenance-free (Grease life for sealed bearings). They are filled with one of the following greases :

•  LGEP 2 grease (designation suffix VT143) as standard

•  LGHB 2 grease (designation suffix GEM) or LGWM 2 grease (designation suffix GLE) on request

Relubrication of sealed bearings

When the required service life is longer than the grease life, the bearings may require relubrication. A suitable grease quantity to relubricate sealed bearings can be obtained using

The grease should be applied slowly through the lubrication holes in the outer ring, preferably while the bearing is rotating to avoid damaging the seals. FV recommends relubricating with the same grease as the initial fill.