Need Support?
Please provide your question. We’ll find you with the best support options.
1.Factors That Affect Bearing Size
2.Criteria for Selecting Bearing Size
An Overview
The size of a bearing is crucial to its performance and lifespan. The bearing components' performance contributes to or determines the bearing's performance and life. Therefore, selecting the right bearing size is critical for securing a strong enough bearing to deliver the expected life under defined operating conditions. This article provides guidance on determining the appropriate bearing sizes.
Bearings vary greatly in size. The smallest "miniature bearings" in the world have an outer diameter of 2mm and an inner diameter of 0.6mm. On the other hand, large bearings can reach up to 6 meters in outer diameter and are used in massive tunnel boring machines for tunnel excavation.
The operating conditions of the application determine which of these factors most influence the bearings performance and life.
Which selection criteria to use depends on the bearing's operating conditions. For applications where bearings are running under normal operating conditions, use size selection based on rating life. For applications where bearings are running under low speeds or bad lubrication conditions, or where occasional peak loads occur, use size selection based on static load. In some applications, both selection criteria must be considered.
Measure the inner diameter by inserting the outside anvils of the caliper into the inner ring of the bearing.Alternatively, measure the inner circle of the bearing from end to end with a ruler.
Measure the outer diameter by placing the bearing in the jaws of the caliper or measuring the bearing from one outside edge to the other using a ruler.
Repeat the last step for the width of the bearing.
Use a bearing sizes chart to find the bearing series number.
USE OUR BEARINGS SEARCH FUNCTION
Different sizes of bearings are used in different industries. Smaller ball bearings have more limited load capacities and are used in applications where space efficiency is more important than load capacity. Larger bearings have greater load capacities and are used for heavy-duty industries such as agriculture machinery, mining and drilling equipment, or heavy power tools. The proper bearing size is essential for optimal performance and to safeguard that the bearing can withstand the required load and provide the expected life.
Further Reading:
Please provide your question. We’ll find you with the best support options.