Radial clearance refers to the radial gap or spacing between rotating parts and fixed parts in a mechanical device or equipment. It is usually the gap between the rotating shaft and the bearing, or the gap between the rotating part and the housing or structure in which it is located. gap. Radial clearance plays a very important role in mechanical systems and can affect the accuracy, performance and life of the equipment.
Bearing clearance is the internal clearance of the bearing, or the clearance (or interference) within a system composed of several bearings. Clearance can be divided into axial clearance and radial clearance, depending on the bearing type and measurement method.
The main difference between radial and axial clearance is their direction and impact on bearing performance:
1. Direction: Radial clearance is the gap between the inner ring of the bearing and the rolling elements, and its direction is perpendicular to the axis center. The axial clearance is the gap between the outer ring of the bearing and the rolling elements, and its direction is along the axis.
2. Impact on performance: The size of radial clearance determines the positioning accuracy and torque of the bearing, and is generally expressed as a negative value. The size of the axial clearance has a direct impact on the bearing accuracy and load carrying capacity, and is generally expressed as a positive value.
