NTN has developed the transmission belts from the formation of the ring of ball bearings, the loss when the rotation of the new product reduced by 80% than the original with light-contact seals bearing. In addition, the oil through 5, can supply sufficient lubricant, therefore less prone to the phenomenon of dry friction.
Auto transmission bearing, sealed ball bearings with contact seals to prevent this, sometimes if there is entry of foreign matter which will lead to shortened life expectancy. But the problems of this bearing is: compared with open ball bearings, the loss increases when the contact make the rotation of the ring, and impede the flow of lubricating oil.
Form a small gap between the wheel and the ring of the ring bearings used in the development can be included. Supplier seals front-end and the inner wheel in contact with the wear of the running early to form a small gap. After the seal and inner wheel was a non-contact state, loss of rotation decreases. In addition, because of the small gap lubricant is also easy to supply.
NTN through the improvement of the sealing ring rubber material composition, so that the product can achieve stable operation early wear and tear. In addition, will also ring the front-end contact with the inner wheel direction from the axial to radial. As with the contact ring the same degree of anti-foreign objects to enter the performance, so the foreign matter mixed lubrication conditions, life can be achieved equal or above the level of the contact ring.
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