圆柱滚子轴承 NNU49..-S-K-M-SP 根据 DIN 5412-4 标准的主要尺寸,非定位轴承,双列,带锥孔,锥度 1:12 ,可分离,带保持架,减小的径向内部游隙,限制公差 d mm D mm B mm NNU4920-S-K-M-SP 100 140 40 NNU4921-S-K-M-SP 105 145 40 NNU4922-S-K-M-SP 110 150 40 NNU4924-S-K-M-SP 120 165 45 NNU4926-S-K-M-SP 130 180 50 NNU4928-S-K-M-SP 140 190 50 NNU4930-S-K-M-SP 150 210 60 NNU4932-S-K-M-SP 160 220 60 NNU4934-S-K-M-SP 170 230 60 NNU4936-S-K-M-SP 180 250 69 NNU4938-S-K-M-SP 190 260 69 NNU4940-S-K-M-SP 200 280 80 NNU4944-S-K-M-SP 220 300 80 NNU4948-S-K-M-SP 240 320 80 NNU4952-S-K-M-SP 260 360 100 NNU4956-S-K-M-SP 280 380 100 NNU4960-S-K-M-SP 300 420 118 NNU4964-S-K-M-SP 320 440 118 NNU4968-S-K-M-SP 340 460 118 NNU4972-S-K-M-SP 360 480 118 d mm D mm B mm NNU4976-S-K-M-SP 380 520 140 NNU4980-S-K-M-SP 400 540 140 NNU4984-S-K-M-SP 420 560 140 NNU4988-S-K-M-SP 440 600 160 NNU4992-S-K-M-SP 460 620 160 NNU4996-S-K-M-SP 480 650 170 NNU49/500-S-K-M-SP 500 670 170 d mm D mm B mm