Precautions for Measuring Radial Clearance of Bearings

Source: China Bearing Network | Date: April 8, 2013

When measuring the radial clearance of bearings, it is essential to follow proper procedures to ensure accuracy and reliability. Here are some key precautions to consider: (1) Whenever possible, use specialized instruments for measurement. These tools provide more accurate readings compared to manual methods. (2) If the hand-push method is used, it requires a high level of skill and experience. This technique is prone to errors, especially when the clearance is at a critical or marginal level. In such cases, it's better to rely on instrument-based measurements to avoid mistakes. (3) When using a feeler gauge, always follow standard operating procedures. Avoid rolling the roller across the feeler, as this can lead to incorrect readings and damage to the equipment. (4) During the measurement process, make sure that the ball settles into the bottom of the raceway. For sealed bearings, measure before closing the housing. Also, account for any load applied during the measurement and adjust the reading accordingly. (5) For multi-row bearings, measure the clearance in each row separately. The radial clearance of the bearing should be calculated as the average of all measured rows. Proper measurement of radial clearance is crucial for ensuring the performance and longevity of bearings. It helps prevent premature wear, reduces the risk of failure, and ensures smooth operation in mechanical systems. If you're unsure about the correct procedure, consult with a professional or refer to the manufacturer’s guidelines. Always double-check your measurements to maintain precision and safety.
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