>> P.248
滚子轴承公称型号质量(参考)主要尺寸mm485150.55155.555.55861.561.561.5676769.57272797983.583.585.589.589.50.60.60.60.60.60.61111111111111111(1)rsminJC30223022222245252538252545252530303030453030d42454545505050555555606060656570707575758080D626864687272778080818585899090100100105105108110110g2902652952602702657103953856154254158804554407257057757501240815790TRU426230UU─TRU456430UU───TRU507745UU──TRU558138UU──TRU608945UU──────TRU7510845UU─────NAU4909UU─NAU4910UU──NAU4911UU──NAU4912UU──NAU4913UU─NAU4914UU─NAU4915UU──NAU4916UU─NAG4909UU──NAG4910UU──NAG4911UU──NAG4912UU──NAG4913UU─NAG4914UU─NAG4915UU──NAG4916UU─满滚子附带保持架轴径mm424550556065707580轴径42-80mm注(1)这是倒角尺寸r的最小容许尺寸。(2)容许转速适用于润滑脂润滑。在实际工作条件下,考虑到还有轴向负荷的作用,推荐以记载值的1/10以下的转速使用。备注1.外圈上设有油槽并设2个油孔。2.密封型已封入润滑脂。248附带保持架的滚子轴承密封型满滚子的滚子轴承密封型
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