Common Terms and Definitions for Rolling Bearing Components

This article provides a detailed overview of the common terminology and definitions related to the components of rolling bearings. Understanding these terms is essential for anyone working with or studying bearings, as they form the foundation of bearing design, function, and application.

1. Bearing Component
A single part that is used in the construction of a rolling bearing. Not all parts of a bearing are considered bearing components; only those that directly contribute to its operation.

2. Bearing Ring
A ring-shaped component found in radial rolling bearings that contains one or more raceways. These rings serve as the contact surface for the rolling elements.

3. Thrust Washer
A ring-shaped component found in thrust rolling bearings that has one or more raceways. It supports axial loads and is commonly used in applications where motion is primarily in one direction.

4. Flat Ring (Loose Rib)
A detachable, flat washer used internally or externally as a rib for the inner or outer ring of a radial cylindrical roller bearing. It helps maintain structural integrity and alignment.

5. Separable Collar (Separable Ring)
A separable ring with an "L"-shaped cross-section. Some of these collars are used as ribs for the inner ring of a radial cylindrical roller bearing, providing additional support and guidance.

6. Guide Ring (Middle Ring)
A separable ring found in multi-row roller bearings. It serves to separate and guide the rows of rollers, ensuring smooth and even operation.

7. Stop Ring (Locating Snap Ring)
A single-lip ring with a stable cross-section, installed in an annular groove. It is used to axially position the bearing within a housing or on a shaft, preventing unwanted movement.

8. Retaining Ring (Locking Snap Ring)
A single-lip ring with a stable cross-section, installed in an annular groove to hold the rollers or cage in place. This ensures the proper alignment and retention of internal components.

9. Spacer
A ring-shaped component placed between two bearing rings, washers, or half-rings. Its purpose is to maintain a consistent axial spacing between these parts, ensuring smooth operation and reducing wear.

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