In mounting a bearing, which ring should be primarily applied with force?

When mounting a bearing, it is essential to apply force to the ring that rotates, which is typically the inner ring. This approach ensures that the bearing is properly fitted onto the shaft, allowing for smooth rotation and optimal performance. Applying force to the rotating ring helps to achieve the correct interference fit between the bearing and the shaft, preventing slippage and ensuring that the bearing functions effectively under load.

When the inner ring is pressed onto the shaft, it creates a tight fit that enables the outer ring to remain stationary in its housing. This method also reduces the risk of damaging the rolling elements or the raceway surfaces of the bearing, which could lead to premature failure. Additionally, focusing on the inner ring during installation allows for better control of the mounting process, making it easier to achieve precise alignment.

In scenarios where the outer ring is forced instead of the inner, there is a risk of misalignment and damage to the bearing's internal components. Therefore, mounting force on the inner ring, which is designed to rotate with the application, is crucial for ensuring reliable operation and longevity of the bearing.