Super precision angular contact ball bearing
ROBUST™ Series NSK Precision America

NSK's ROBUST™ Series of Ultra high-Speed Angular Contact Ball Bearings for the machine tool main spindles. These bearings offer improved thermal robustness, low heat generation, & improved seizure rates ensuring that machine tools can operate at ultra-high speeds, increasing manufacturers productivity & reduced energy cost.

PRODUCT FEATURES
ROBUST™ design with NSK's optimised geometry.
New SHX steel material option.
Rolling element material can be steel or ceramic.
Lightweight, high strength PEEK cage options.
Spinshot™II lubrication system for the ultra high speed.
PRODUCT BENEFITS
Lower temperature rise compared with conventional precision bearings.
20% faster than conventional precision bearing, up to 80% faster using new SHX material.
Temperature robustness - durable under fluctuating temperature conditions.
Improves seizure & wear resistance due to NSK's proprietary SHX bearing steel.
Fatigue life of SHX material is 4 times that of conventional bearing steel.
Ultra high-speed with position preload using Spinshot™II lubrication system (2.5 Million dmn (= Bearing mean diameter (mm) X speed (rpm)).
Spinshot™II lubrication system reduces air noise.
Air / Oil systems (3 to 4 dB quieter).