Do you know the cylindrical roller bearing types and applications?

1,279 Published by admin1 Mar 05,2019

Cylindrical roller bearings are radial roller bearings of cylindrical rollers. About cylindrical roller bearing types, the internal structure of the cylindrical roller bearing is arranged in parallel by rollers, and spacers or spacers are arranged between the rollers to prevent the rollers from tilting or friction between the rollers, thereby effectively preventing an increase in the rotational torque.

cylindrical roller bearing types

The classification of cylindrical roller bearing types
1, the structure type
The outer ring has no rib N0000 type and the inner ring has no rib NU0000 type. The cylindrical roller bearing can accept large radial load, the limit rotation speed is high, and the axial displacement of the shaft or the outer casing is not restrained, and the axial direction cannot be accepted. Load.

Cylindrical roller bearings with ribs on the inner and outer rings NJ0000 and NF0000 bearings can axially displace the shaft or housing in one direction and accept small one-way axial loads. NU0000+HJ0000, NJ0000+HJ0000, NUP0000 bearings can axially displace shafts or housings in the axial clearance of imported bearings and accept small bidirectional axial loads.

original cylindrical roller bearing types

2, cylindrical roller bearing types
Cylindrical roller bearings are separate bearings that are easy to install and disassemble. cylindrical roller bearing types can withstand large radial loads and are suitable for use in high speed applications.

Such cylindrical roller bearing types allow the angular error (inclination) of the inner ring axis and the outer ring axis to be small, only 2' to 4'. Therefore, the machining accuracy of the shaft and the bearing housing is relatively high, otherwise uneven load or stress concentration may occur at the contact portion of the raceway. However, the correction of the roller or raceway contact busbar can reduce the occurrence of stress concentration.

Cylindrical roller bearings can be divided into different structures such as single row, double row and multi row cylindrical roller bearing types depending on the number of rows of rolling elements. Different structural cylindrical roller bearing types are also shown in the design of the ribs. Among them, there are several types of cylindrical roller bearings commonly used:

in stock cylindrical roller bearing types

Single row cylindrical roller bearing types: Single row cylindrical roller bearings are separable bearings for easy installation and disassembly. Both ferrules can be tightly fitted with a modified contact line between the roller and the raceway to reduce stress concentration.
Double row cylindrical roller bearing types: Double row cylindrical roller bearings are floating bearings, which are easy to install and disassemble. A tight fit can be used for both ferrules. Double row cylindrical roller bearings have almost no inclination angle.

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