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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 |
Factory Appearance
The company mainly produces deep groove balls, self-aligning balls, cylindrical rollers, tapered rollers, automobile wheels, needle roller bearings, spherical bearings and other bearing series. The products are widely used in precision machine tools, grinders, motors, hydraulic pumps and valves and other industries.
Packing And Delivery
We will choose the best shipping method to deliver the product to you based on the quantity of products you purchase.
Customer Visit
From raw material procurement to production and manufacturing, a series of strict management and control systems have been formed to ensure product quality.
Keywords
Cylindrical Roller Bearings
NNU Series
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Classification：
Cylindrical Roller Bearings
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