NTN (NTN) using a newly developed lubricant and cage rotation resistance is lower than in the past products of more than 50% of the sealed deep groove ball bearing. For the EV (electric vehicle) Motor can reduce the mechanical losses and improve efficiency, and therefore can reduce the weight of the car battery and prolong the life of the distance.

For sealed deep groove ball bearings support the rotor in the case of light load, high speed rotation, the rotation resistance has stemmed from the stirring resistance of the lubricant sealed within. NTN in order to reduce this resistance, constitute a lubricant base oil, thickener and additives of these three elements, the implementation of improvements to reduce the viscosity of base oil, thickener organizations miniaturization. Thickener to promote the combination of base oils, miniaturization can enhance the base oil to maintain the ability of the state, thereby reducing the use of the thickener.

In the driving noise (quiet) to ensure that performance over the original motor oil equivalent. In addition, the best proportion with the use of lubricating oil additives inhibit the aging of lubricant temperature oxidation life of more than equal to the previous product.
In addition to the development of lubricants, improved cage rolling element and cage pocket hole contact shape, inhibit the lubricants excessive flow to the bearing raceway.



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