Analysis of five characteristics of cylindrical roller bearings

Cylindrical rollers and raceways are linear contact bearings. Load capacity, mainly bear radial load. The friction between the rolling element and the ferrule is small, suitable for high-speed rotation. The bearing has a separable inner ring and outer ring according to the presence or absence of ribs. Cylindrical roller bearings with no ribs on the inner or outer ring can move axially relative to the inner and outer rings, so they can be used as free-end bearings. Cylindrical roller bearings with double ribs on one side of the inner ring and outer ring and a single rib on the other side of the ring can withstand a certain degree of axial load in one direction. Generally, a steel stamping cage or a copper alloy solid cage is used. But some also use polyamide shaped cages.\

Characteristics of cylindrical roller bearings:

1. The roller and the raceway are in line contact or underline contact. The radial load capacity is large, which is suitable for bearing heavy loads and impact loads.

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

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

4. The processing requirements of the shaft or the seat hole are relatively high. 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 or outer ring can be separated for easy installation and removal.

product features:

Cylindrical rollers are in line contact with the raceway and have a large radial load capacity. It is not only suitable for bearing heavy load and impact load, but also suitable for high-speed rotation.

Cylindrical roller bearing raceways and rolling elements are geometrically shaped. After the improved design, it has higher bearing capacity. The new structural design of the rib and roller end face not only improves the axial bearing capacity of the bearing, but also improves the lubrication conditions of the contact area between the roller end face and the rib edge. Bearing performance.