The cylindrical roller is in line contact with the raceway, and the radial load capacity is large. It is not only suitable for bearing heavy load and impact load, but also suitable for high-speed rotation. The raceways and rolling elements of cylindrical roller bearings are geometrically shaped. After the improved design, it has a higher load-bearing capacity. The new structural design of ribs and roller end faces not only improves the axial load-bearing capacity of the bearing, but also improves the lubrication conditions of the contact area between the roller end face and the rib. The performance of the bearing. Then the following is an analysis of its five major advantages:

1. The roller and the raceway are in line contact or repaired offline contact, with large radial load capacity, suitable for bearing heavy loads and impact loads.

2. The friction coefficient is small, suitable for high speed, and the limit speed of precision bearings is close to that of deep groove ball bearings.

3. The N type and NU type can move axially, can adapt to the change of the relative position between the shaft and the housing caused by thermal expansion or installation error, and can be used as a free end support.

4. The processing requirements for the shaft or the seat hole are relatively high, and the relative deflection of the outer ring axis after the bearing is installed must be strictly controlled to avoid contact stress concentration.

5. The inner ring or outer ring can be separated for easy installation and disassembly. Cylindrical roller bearings are also widely used, such as large and medium-sized motors, locomotives, machine tool spindles, internal combustion engines, generators, gas turbines, gearboxes, rolling mills, vibrating screens, and lifting and transporting machinery.

Cylindrical roller bearings can be divided into single-row, double-row and multi-row cylindrical roller bearings according to the number of rows of rolling elements. Bearings of different structures are also shown in the design of the position of the ribs. The commonly used cylindrical roller bearings have the following forms:

Single-row cylindrical roller bearings: Single-row cylindrical roller bearings are separable bearings, which are easy to install and disassemble. Both rings can be tightly fitted. The contact line between the roller and the raceway can be modified to reduce stress concentration.