Ultra-high-speed spindle bearings ROBUST series
These are high-performance bearings developed for high-speed operation with low temperature increase. Suitable for ultra-high-precision machining applications, and ultra-high-speed applications. They are produced with a contact angle of 18˚ (BNR) and 25˚ (BER), with steel balls (S type) and ceramic balls (H and X type), with various cage designs – phenolic (T), polyamide (TYN), brass (MY) or special PEEK (TS) – and as open types or with non-contact seals (V1V). The ROBUST series is also made of heat resistant SHX steel, which ensures a longer operating life. Bearings are available in various precision classes and various preloads, in pairs, triplets or quadruplets.
The ROBUST series also can be used for ultra-high-speed applications of over three million dmn.
Bearing series: ..BNR19, ..BER19, ..BNR10, ..BER10, ..BNR29, ..BER29, ..BNR20, ..BER20
ROBUST X series – inner and outer ring material: SHX high-temperature resistant steel, ceramic balls
ROBUST H series – inner and outer ring material: SUJ2 bearing steel, ceramic balls
ROBUST E series – inner and outer ring material: SUJ2 bearing steel, steel balls with extra-long operating life
ROBUST S series – inner and outer ring material: SUJ2, bearing steel, steel balls