How much do you know about cylindrical roller bearings?

The raceways and rolling elements of cylindrical roller bearings are geometric. After the improved design, the cylindrical roller bearing is more resilient. The new design of the rib and roller face of the cylindrical roller bearing not only improves the axial bearing capacity of the bearing, but also improves the lubrication conditions of the contact area between the roller face and the rib, and improves the performance of the bearing.

What are the classifications of cylindrical roller bearings?

What types of single row cylindrical roller bearings are there?

What are the shape characteristics of cylindrical roller bearings?

What are the classifications of cylindrical roller bearings?

cylindrical roller bearings can be divided into different structures such as single-row, double-row and multi-row cylindrical roller bearings depending on the number of installed rows of rolling elements. Different structural bearings are also reflected in the design of the position of the rib. Among them, the commonly used cylindrical roller bearings have the following shapes:

Single-row cylindrical roller bearings: Single-row cylindrical roller bearings are dismountable bearings that are easy to install and remove. Both rings can be fitted tightly, and the contact line between the roller and the raceway can be corrected to reduce the stress concentration.

Double-row cylindrical roller bearing: Double-row cylindrical roller bearing is one of the floating bearings, and its separability makes installation and disassembly very convenient. Both ferrules can be fixed. Double-row cylindrical roller bearings must hardly have a tilting angle.

What types of single-row cylindrical roller bearings are there?

N, NU type

The outer ring of N-type cylindrical roller bearing has no ribs, and there are ribs on both sides of the inner ring. A displacement in both axial directions between the shaft and the bearing housing can be allowed. The NU cylindrical roller bearing has flanges on both sides of the outer ring and no flanges on the inner ring. It is also possible to move the shaft relative to the bearing housing in both axial directions. This type of construction is therefore suitable for use as a loose bearing.

NJ, NF type

NJ cylindrical roller bearings have flanges on both sides of the outer ring and flanges on one side of the inner ring. They can withstand a certain unidirectional axial load. Type NF cylindrical roller bearings have flanges on one side of the outer ring and flanges on both sides of the inner ring. It can also bear a certain unidirectional axial load. This type of superstructure is, therefore, suitable as a unidirectional axial fixed bearing.

NUP, NFP Type

NUP cylindrical roller bearings have boards on both sides of the outer ring, a (fixed) single board on one side of the inner ring and a separable flat locking ring on the other side. Can withstand a certain amount of bidirectional axial load.

What are the shape characteristics of cylindrical roller bearings?

cylindrical roller bearings can absorb greater radial pressure due to the linear contact between the rollers and the raceway surface and are also structurally better suited for high-speed rotations.

There are two types of cylindrical roller bearings for machine tool spindles: double row and single row, and there are also types that have a conical inner diameter to adjust the radial bearing air.

SHANDONG CHIK BEARING CO., LTD is committed to meeting all cylindrical roller bearing requirements. And it welcomes global customers to buy.