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    • 3. 发明授权
    • Rolling bearing and fan motor using the same
    • 滚动轴承和风扇电机使用相同
    • US07029181B2
    • 2006-04-18
    • US10792217
    • 2004-03-04
    • Yasuhisa TeradaKenji TakeiMichiharu Naka
    • Yasuhisa TeradaKenji TakeiMichiharu Naka
    • F16C33/66F16C33/38
    • F16C33/6633F16C33/416F16C33/418F16C2240/46
    • A rolling bearing lubricated with a grease includes an outer ring, an inner ring, a plurality of rolling elements disposed between respective rolling raceway tracks of the outer ring and the inner ring, and a retainer having a plurality of pockets for locking the rolling elements to freely roll and formed of resin material. In the rolling bearing, the radial clearance gap ratio of the pockets of the retainer is set to 0≦δr/Da≦0.09, and the axial clearance gap ratio of the pockets is set to 0≦δa/Da≦0.06 when the kinematic viscosity of base oil at 40° C. of the grease is 10 to 40 mm2/sec, being set to 0≦δa/Da≦0.05 when the kinematic viscosity of base oil is 10 to 90 mm2/sec, being set to 0≦δa/Da≦0.025 when the kinematic viscosity of base oil is 10 to 160 mm2/sec.
    • 用润滑脂润滑的滚动轴承包括外圈,内圈,设置在外圈的各个滚动轨道和内圈之间的多个滚动元件,以及具有多个用于将滚动元件锁定的凹槽的保持器 自由滚动和形成树脂材料。 在滚动轴承中,保持器的凹穴的径向间隙间距比被设定为0 <= deltar / Da <= 0.09,并且凹穴的轴向间隙间距比被设定为0 <Δa/ Da <= 0.06 当基础油在40℃下的润滑脂的运动粘度为10〜40mm×2 / sec时,当基础油的运动粘度为0时,Δa/ Da <= 0.05 当基础油的运动粘度为10至160mm 2 /秒时,其为10至90mm 2 / sec,设定为0 <Δa/ Da <= 0.025 。