RobustShot Series – inner and outer ring material: SUJ2 bearing steel, ceramic balls. Direct air-oil lubrication via a through-hole in the outer ring in order to achieve the highest speeds. Lubrication groove with O-rings in the outer ring (E34).
NSK has developed new ultra-high-speed angular contact ball bearings using the new “SURSAVE" cage for the main spindle of machine tools.
This cage is applied to the NSK ROBUST series of ultra-high-speed angular contact bearings. The newly developed “SURSAVE” cage achieved low NRRO (non-repeatable runout), low heat generation and high-speed performance. Reduction of NRRO improves the process surface quality and reduction of heat generation helps to suppress thermal displacement.
Features:
Optimised internal design
Lower vibration and runout of the cage
Reduce NRRO* by half
20% reduction of heat generation compared to conventional bearings under high-speed conditions
We strive to offer you the technically optimal solution in the shortest possible time. We save you costs and we are here for you 24 hours a day, 7 days a week, 365 days a year.
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