RENK Side flange-mounted bearings type EF

The EF type is especially suitable for electric machines which do not have their own bearing foundations or the alignment work that goes with them.
 
• Lower noise levels in comparison to rolling bearings and resistant to loads caused by shocks thanks to low material stresses
 
• Maintenance-free or low-maintenance and easy to install
 
• Lubricant film dampens vibrations, impacts, and noise
 
• Resistant to penetration of dust and shocks
 
Slide bearings:
• require a small radial installation space and are structurally adaptable (can be integrated as component)
 
• are suitable for very high speeds
 
• exhibit practically no wear during fully hydrodynamic continuous operation and with hydrostatic bearings
 
• are most cost-effective than rolling bearings at large dimensions
Click on image to enlarge

Dimensions

Additional Information

Bearing Housing
 
The finned EF-type housings are made from a high-quality cast iron (EN-GJL-300) and are designed for heavy duty performance. Other materials such as, for instance, nodular cast iron EN-GJS-400-15 or cast steel GS 45 can be supplied by special arrangement.
 
Bearing Shell
 
The shells are spherically seated in the housing. They consist of a supporting steel body lined with lead based RENKmetal therm 89/V6.
Both design and manufacture are in accordance with the highest standards required in heavy engineering: trouble- free assembly and long life even under severe operating conditions.
 
EF-type bearings are mostly equipped with shells with plain cylindrical bore and lubricating oil ring. Shells are available either for self-contained operation (E.NL.) or prepared for external oil circulation (E.ZL.)

Technical Data

Design:
 
 EF bearing
Construction:
 
 Finned side flange-mounted bearing acc. to DIN 31693 / ISO 11687-2
Size:
 
 9 … 28, for shafts Ø 80 … 355 mm 
 35 … 45, for shafts Ø 300 … 560 mm (600 mm)
Lubrication:  Self-lubricating (loose oil ring, fixed oil ring) or external lubrication
Cooling system:   Natural cooling, water cooling, or external cooling
Bore design:
 
 Various bore designs as required, e.g. cylindrical bore, two-lobe bore, four-lobe bore, or radial tilting pad
Options:  Electric insulation, lubrication circulation system, hydrostatic jacking
Accessories:  Temperature monitoring with PT100, prepped for vibration/speed sensors