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    • 3. 发明授权
    • Double row cylindrical roller bearing
    • 双列圆柱滚子轴承
    • US07530743B2
    • 2009-05-12
    • US10489200
    • 2002-09-10
    • Kenji YakuraTakaaki AnzaiKen InabaYasushi Morita
    • Kenji YakuraTakaaki AnzaiKen InabaYasushi Morita
    • F16C33/48F16C19/00
    • F16C33/485F16C19/28F16C33/498
    • A cylindrical roller bearing with synthetic resin cages, in which heat generation of the bearing during high speed rotation is suppressed, while sufficient rigidity and strength is secured, so that the bearing is excellent in high speed performance. The cylindrical roller bearing (10) has synthetic resin cages (20) each including an annular portion (21) disposed in one axial end portion of the cage (20), and a plurality of columnar portions (25) extending from a side surface of the annular portion (21). The minimum inner diameter d1 of the annular portion (21) is set to be smaller than the maximum inner diameter d2 of each columnar portion (25), and the inner diameter of the columnar portion (25) is set to be equal to the inner diameter d1 of the annular portion (21) over a range of length not longer than ⅔ of the whole length of the columnar portion (25).
    • 具有合成树脂保持架的圆柱滚子轴承,其中抑制高速旋转期间轴承的发热,同时确保足够的刚度和强度,使得轴承具有优异的高速性能。 圆柱滚子轴承(10)具有合成树脂保持架(20),每个包括设置在保持架(20)的一个轴向端部的环形部分(21),以及多个柱状部分(25),其从侧面 环形部分(21)。 环状部分(21)的最小内径d1被设定为小于每个柱状部分(25)的最大内径d2,并且柱状部分(25)的内径设定为等于内部 在长度不大于柱状部分(25)的整个长度的2/3的范围内的环形部分(21)的直径d1。