Static loading refers to the load on an actuator when it is in a fixed or stationary condition. Dynamic load is the load the actuator sees when it is powered and extending or retracting.

## What is static load rating?

The static load rating represents the load which can be taken by a spherical plain bearing when static contact stress of bearing contact surface reaches the material stress limit. It is valid at room temperature and it is presupposed that the surrounding components prevent deformation of the bearing.

Static load capacity is almost always higher than dynamic load capacity because its limitation is plastic deformation of the ball and raceway material, which occurs when the load is applied to the bearing in a static (non-moving) or slow-moving state.

Dynamic Load Ratings The dynamic load rating (C) for a radial or angular contact ball bearing is a calculated, constant radial load that a group of apparently identical bearings will theoretically endure for a rating life of one million revolutions. The dynamic load rating is a reference value only.

### What is the difference between static and dynamic load?

A static load has mass and potential energy while a dynamic load has mass and inertia because it is moving compared to your frame of reference. It takes much more force to change a mass’s (which in Earth gravity as weight) rate of motion than it does to hold up the weight.

### How do you calculate static load?

Once the combined static load has been calculated, it can be used to determine the static load safety factor. The static load safety factor is calculated by dividing the basic static load rating (C 0) by the static equivalent load of the most heavily loaded bearing.

What is the definition of static and dynamic load?

Static loading refers to the load on an actuator when it is in a fixed or stationary condition . The static load capacity of an actuator refers to how much weight the actuator can safely hold without back driving or causing damage. Dynamic load is the load the actuator sees when it is powered and extending or retracting.

What is a basic dynamic load rating?

A Basic Dynamic Load Rating is a theoretical , statistically based value of load that a bearing can carry for 1,000,000 revolutions with 90% reliability. For a radial bearing, this rating was based on the amount of pure radial load that a rotating inner ring could tolerate for 500 hours at a 33-1/3 RPM.