Radial force generally refers to the force exerted on a cylindrical object that passes through the center of the cross-section of the object and is perpendicular to the axis of the object, or the force passing through the center of the spherical object.
Distinguish between radial and axial
1. Radial is the linear direction along the diameter or radius, or the linear direction perpendicular to the axis. In the earth's surface, it usually refers to the direction of the straight line passing through the point in the tangent plane centered on a certain point. In radio navigation or radio measurement, the direction of magnetic lines of force extending through a certain central point (line).
2. The axial direction is usually for the cylindrical object, which is the direction of the central axis of the cylinder rotation, that is, the direction common to the central axis. "Radial" is perpendicular to the "axial direction", ie the radius or diameter direction of the cylinder end face circle. The radial direction is perpendicular to the axial space.
Radial stiffness
Radial stiffness is the force required to produce a unit deformation in the radial direction of a rigid component such as a spindle or a bearing or a lead screw. Stiffness refers to the ability of a material or structure to resist elastic deformation when stressed. It is a representation of the degree of difficulty in elastic deformation of materials or structures. The stiffness of a material is usually measured by the modulus of elasticity E. In the macroscopic elastic range, stiffness is the proportional coefficient of the part load proportional to the displacement, ie the force required to cause a unit displacement. Its reciprocal is called compliance, which is the displacement caused by unit force. The stiffness can be divided into static stiffness and dynamic stiffness.
Radial load
The direction parallel to the axis is called the axial direction; the direction perpendicular to the axis (the same direction as the diameter) is called the radial direction. When the pulley of the motor pulls the belt, the motor is subjected to radial load. The lathe is drilled with a large hole in the workpiece, and the lathe spindle is axially loaded.
Radial size
Radial dimension refers to the length in the diameter or radial direction, but not only the circular arc but also the radial dimension.
Radial clearance
Bearing clearance is also known as bearing clearance. The so-called bearing clearance refers to the amount of movement when the bearing is fixed to one of the inner ring or the outer ring when it is not attached to the shaft or the bearing housing, and then the radial or axial movement of the bearing clearance is not fixed. . According to the direction of movement, it can be divided into radial clearance and axial clearance. The maximum amount of motion in the radial direction is called the radial clearance, and the maximum amount of motion in the axial direction is called the axial clearance. In general, the larger the radial clearance, the larger the axial clearance.
