What is the difference between rolling bearings and ball bearings
Roller bearings and ball bearings are widely used in modern machinery, and their differences are mainly in nature, principle and use.
1. Different in nature
(1) Roller bearing: one of the widely used components in modern machinery.
(2) Ball bearing: a kind of rolling bearing, the ball is installed in the middle of the inner steel ring and the outer steel ring, which can bear a large load.
2.The principles are different
(1)Ball bearings: Determine the relative position of two components (usually a shaft and a bearing housing) to ensure they rotate freely while transferring loads. At high speeds, such as in gyro ball bearings, this application can be extended to include free rotation with little bearing wear.
(2)Roller bearings: support rotating parts through rolling contact. Different rolling bearings can withstand different radial and axial forces. When selecting rolling bearings, it should be selected according to the specific working conditions.
3. the difference in use
The The difference between a ball and a roller is the way it contacts the raceway.
(1) The balls are in point contact with the raceway of the bearing ring.As the load on the bearing increases, the contact point becomes an oval area.Smaller contact area reduces rolling friction, allowing ball bearings to accommodate high speeds while limiting their load-carrying capacity.
(2)The roller is in contact with the raceway line of the bearing ring.As the bearing load increases, the contact line becomes rectangular. Due to the larger contact area and the resulting friction, roller bearings can carry heavier loads at lower speeds than ball bearings of the same size
