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Cylindrical Roller Bearings NNU Series
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.
Category：
Cylindrical Roller Bearings
Product Description
Product Details
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
The company has a strong technical R&D team and rich bearing manufacturing experience, as well as advanced and complete bearing processing equipment and complete measurement and testing methods.
Product Testing
The company always adheres to the principle of "quality first, customer first, reputation first", has the courage to explore and innovate, strives for first-class products and meticulous services, meets customer expectations to the greatest extent, and ensures that customers receive satisfactory products and services.
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