NTN development goes rotate speed to raise the thrust needle bearing of 67 ％

In the product of 5mm, rotate speed coming back is spent achieved 21000rpm, "For the whole world highest " (this company) . This product is used at mixing motor vehicle to use engine unit, AT (automatic transmission) with CVT (infinitely variable speeds implement) on use, can satisfy the requirement that high speed changes. Additional, also can use on average industrial machine. This company is in this reduced connect with roller end panel while touched cage wraps up aperture surface surface roughness, still improved the appearance of cage, hinder in order to make both osculatory condition mights as well the motion of roller. In addition, through be radius of curvature of instead of appearance of roller end panel the curved surface appearance of R, make its are turning the center with slow rate also can wrap up aperture surface reliably to have point contact with cage. Adopt these measure, those who will reduce wear away and agglomeration. The biggest rotational group of bearing is counted by original 900 thousand raised 67 ％ . Additional, return what reduced the bearing when high speed is rotational further to warm up extent. Value of 80 ℃ , Dmn is oily Wen Wei the product of 900 thousand, the bearing when movement warms up extent reduced 35 ％ than primary product. CNC Milling