
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
Key words:
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 |
AUTOMATIC DETECTION EQUIPMENT
The installation workshop and grinding machine workshop have been built to high standards, industry-leading production equipment and testing instruments have been introduced, and corresponding functional areas such as warehouses and dormitories have been equipped to create a first-class hardware environment.

TRANSACTION CREDENTIALS

FACTORY
The company is located in Panzhuang Industrial Park, Linqing, with a total construction area of more than 30,000 square meters. The installation workshop and grinding machine workshop have been built to high standards, industry-leading production equipment and testing instruments have been introduced, and corresponding functional areas such as warehouses and dormitories have been equipped to create a first-class hardware environment.

Exhibition
The products have reliable quality and stable performance and are sold well in the national market and exported to Southeast Asia, Europe, South America, the Middle East and other regions. They enjoy a good reputation in the international market and have contributed the wisdom and power of Made in China to the development of global industrialization!

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