PEL® BH spherical bearings have an excellent resistance to wear and seizure due to the combination of a duplex surface treatment and special grease reservoirs.
These grease reservoirs could be designed between the inner and the outer ring of the bushing and/or between the inner ring and the pin. This provides longer useful life of HEF bearing compared to standard spherical bearings.
These spherical bearings are only superficially hardened; they have a good resilience which enables an excellent shock resistance
|Dyn. Load (N/mm²)||Max Temp (°C)||Abrasion resistance||Shocks resistance||Corrosion resistance||Low-Maintenance|
|PEL® BH||see product sheet||250°C||++||++||++||+++|
When assembly enables sliding between pin and bearing and for optimal performances of the joint, the surface roughness of pin should be inferior to Ra 0,8 μm and the hardness should be superior to 56 HRc. Special shafts especially designed by HEF DURFERRIT providing good mechanical and friction properties and good corrosion resistance could be supplied: PEL® ST, PEL® STC...
Low or no maintenance
High resistance to abrasion
High resistance to stocks
High resistance to high pressures
Earth moving equipment / mining equipment