One-way Bearing Principle

1. Wedge design

This wedge-type one-way over-the-clutch consists of an inner ring, an outer ring, a wedge set, a wedge cage, a strong spring and a bearing. Wedges pass power from one raceway to another by wedges between inner and outer rings. The wedge has two diagonal diameters ( that is, the distance from one corner of the wedge to the other) one of which is larger than the other. The wedge action occurs when the outer and outer rings are relatively rotated, forcing the wedge to have a larger vertical position on a large cross-section.

2. The self-locking angle wedge action mainly relies on the wedge and self-locking angle of the wedge between the inner and outer rings.

The basic concept of the wedge one-way clutch requires that the coefficient of friction of the wedge is related to the sudden torque generation of the inner ring in the driving direction, which must be larger than the forward cut value of the self-locking angle. If the condition is not secure, the wedge will not occur.

The self-locking angle is determined by the structure of the wedge, and the points on the inner and outer rings are connected by the wedge and its respectively. The wedge design has a very low initial self-locking angle to ensure absolute binding at the beginning. As the torque increases, a radial force will be generated on the wedge that deflects the wedge raceway, causing the wedge to roll to a new position. The wedge is often designed to have a self-locking angle that can grow gradually, as it does from the overtaking position to the maximum load. Larger self-locking angles reduce radial forces produced by wedges, so that largetorque is allowed to be passed as long as the elongation and the B.C. hardness limit are required.

3. Slope and roller design

The slope and roller one-way clutch consist swells from the outer ring of the barrel inner diameter, the inner ring with the slope, and a set of rollers that are subject to spring force and always come into close contact with the inner and outer rings. As long as the rotation of one of the raceways in its direction of motion has an effect on the other, this arrangement essentially ensures the immediateity of overstepping speed and ensures immediate drive.

The use of this type of one-way clutch can be suitable for the use of overtaking, fractional and reverse in a variety of environments.

When used as an over-one clutch, the slope roller-type unidirectional clutch will be installed in this way, i.e. the outer ring is treated as an override member. This is very important for high-speed transcendence. In the use of inner ring transcendence, the centrifugal force acting on the roller will result in limited speed beyond.

When used as an reverse one-way clutch, only the slope roller-type one-way clutch with the inner ring rotation is suitable for a relatively low speed. A wedge-type one-way clutch is recommended if the desired speed is higher than the recommended speed.

When used as a fractional one-way clutch, the outer ring is often seen as a swing element, and the inner ring is often seen as a component. Otherwise, the inertia of rollers and springs will result in errors, especially at high frequency fractions. The use of diluted lubricants and strong springs provides high-speed fraction accuracy and high quality.