High Precision Cylindrical Roller Bearings of the series NN30

Special feature of this series: Main dimensions according to DIN 5412-4. High precision cylindrical roller bearings of the series NN30 are constructed in a double row design and can support very high radial loads. The production according to tighter tolerances allows a precise run and a highly accurate arrangement. They can be used as floating bearings. The tapered bore allows for fine adjustment of radial clearance using an adapter sleeve.

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High Precision Cylindrical Roller Bearing NN3028-AS-K-M-SP 140x210x53 mm

Item number:

Item features:

Delivery time: Available

from 4 pcs per 485,10 €
from 10 pcs per 458,15 €
from 50 pcs per 431,20 €
from 200 pcs per 404,25 €
from 500 pcs per 377,30 €

539,00 € *

incl. 19% VAT , (Standard)

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Special design of the roller bearing

Design of the inner and outer rings with regard to axial displacement.

Bore design, either cylindrical or tapered (1:12)

Maximum permissible load capacity of the bearing based on the materials used and the geometric design.

Noise level of the bearing during operation.

Smooth-running bearings have low frictional resistance.

Resistance of the materials used in the bearing to water and other corrosive media.

Maximum permissible speed of the bearing.

Protection of the bearing from the ingress of foreign particles and liquids.

Highest ambient temperature at which the bearing can be used without restrictions

Lowest ambient temperature at which the bearing can be used without restrictions

Accuracy of main dimensions (inner diameter, outer diameter and width). P0 is the standard tolerance class, P6 and especially P5 are a bit more precise.

The bearing clearance is the amount by which the two rings of a non-installed roller bearing can be displaced in relation to one another. There are different internal clearance classes. CN is "normal internal clearance" and is the best choice for many applications. C3, C4, ... indicates increased clearance. C2, C1, ... stands for reduced clearance.

Inner and outer ring material

Material of the rolling element (i.e. the balls or rollers)

Material of the cage (the cage holds the rolling elements in place)

Type of lubrication of the rolling bearing. Rolling bearings are usually either greased, oiled or dry.