Imperial Single Row-1

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NNU Series

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Liaocheng Shuanglong Bearing Manufacture Co.,Ltd

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Imperial Single Row-1

NNU 49 series double row cylindrical roller bearings have three integral flanges on the outer ring and no flanges on the inner ring.

It available with either a cylindrical or a 1:12 tapered bore (designation suffix K). In machine tool applications, cylindrical roller bearings with a tapered bore are preferred over bearings with a cylindrical bore, because the taper enables more accurate adjustment of clearance or preload during mounting.

Bearings in the NNU 49 series, with a very low cross-sectional height, provide a higher degree of stiffness than bearings in the NN 30 series, but a somewhat lower load carrying capacity.

Bearing Number	d mm	D mm	B mm
NNU4917K/W33	85	120	34
NNU4920K/W33	100	140	40
NNU4921K/W33	105	145	40
NNU4922K/W33	110	150	40
NNU4924K/W33	120	165	45
NNU4926K/W33	130	180	50
NNU4926M	130	180	50
NNU4928K/W33	140	190	50
NNU4932K/W33	160	220	60
NNU4932M	160	220	60
NNU4936K/W33	180	250	69
NNU4938K/W33	190	260	69
NNU4938KM	190	260	69
NNU4940K/W33	200	280	180
NNU4944K/W33	220	300	48
NNU3092X2N/YA5	460	620	160
NNU4992/YA5	460	620	160
NNU49/530N/YA6	530	710	180
NNU49/500	500	670	170