Other Hybrid Bearings

Other SKF hybrid bearings – Hybrid high-precision bearings

The SKF product range also includes a selection of

• hybrid high-precision angular contact ball bearings
• hybrid high-precision cylindrical roller bearings
• hybrid high-precision angular contact thrust ball bearings, double direction.

In addition, hybrid single or double row angular contact ball bearings and hybrid four-point contact ball bearings can be manufactured to special order. In such cases the SKF application engineering service should be contacted for further information.

Hybrid ball and roller bearings, hybrid bearing units

SKF also design and manufacture a variety of other hybrid bearings in standard sizes on special order for certain size ranges including

• angular contact ball bearings
• cylindrical roller bearings
• bearing units.

Such designs enable a combination of optimal performance, simplicity in handling and economy. For more information, please contact the SKF application engineering service.

Hybrid bearings with special steel rings and coatings

SKF hybrid bearings are made as standard of the same steel as the equivalent all-steel bearing. The standard stabilization temperatures are 120 �C for deep grove ball bearings and 150 �C for angular contact ball bearings. For continuous operation above these temperatures it is recommended to use bearings with rings that are dimensionally stabilized for use at higher operating temperatures e.g.

• up to +150 �C, suffix S0
• up to +200 �C, suffix S1.

Hybrid deep groove ball bearings stabilized to S0 or S1 etc. are normally not stocked.

On request hybrid bearings can be manufactured with through-hardened rings of stainless bearing steels with good corrosion, wear and oxidation resistance and good high temperature properties. Such bearings can operate at temperatures up to 300 �C.

For custom-made hybrid bearings with rings of special stainless steels for cryogenic temperatures or of high temperature tool steels please contact the SKF application engineering service.

The rings may be coated for corrosion protection e.g. with zinc chromate or thin dense chromium. Low friction coatings of molybdenum base can be applied for vacuum and gas applications.

Dimensions, tolerances, clearance SKF hybrid deep groove ball bearings are standardized bearings and are are manufactured as standard with

• boundary dimensions to ISO 15:1998
• Normal tolerances to ISO 492:2002
• C3 radial internal clearance to ISO 5753:1991 (table 2).