Rolling Bearing Vocabulary (2)

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Spherical plain bearings are designed with a spherical sliding surface, making them ideal for applications involving swaying, tilting, or rotational motion. These bearings provide smooth movement in complex mechanical systems. Combined bearings consist of multiple bearing arrangements combined into one unit, such as needle roller and thrust cylindrical roller combinations, needle roller and thrust ball combinations, or needle roller and angular contact ball combinations. These designs allow for more versatile load support and are often used in specialized machinery. Other bearings refer to rolling bearings that do not fall into the standard categories mentioned above. They can include unique configurations tailored for specific industrial needs. **Bearing Parts** Bearing parts are essential components of rolling bearings but not all parts are considered accessories. Key parts include: - **Bearing Ring**: A ring-shaped component of a radial rolling bearing that contains one or more raceways. - **Bearing Washer**: A ring-shaped part of a thrust rolling bearing with one or more raceways. - **Flat Retaining Ring**: A flat, detachable washer used internally or externally as a guide for the inner or outer ring of a radial cylindrical roller bearing. - **Tapered Ring (Separable)**: A separable ring with an "L"-shaped cross-section, sometimes used as a guide for the inner ring of a radial cylindrical roller bearing. - **Middle Retaining Ring**: A separable ring found in multi-row roller bearings, used to separate and guide the rollers. - **Stop Ring**: A single-lip ring with a stable cross-section, installed in an annular groove to axially position the bearing. - **Lock Ring**: A single-lip ring used in an annular groove to secure the roller or cage within the bearing. - **Spacer**: A ring-shaped component placed between two bearing rings or washers to maintain proper axial spacing. - **Sealing Ring**: An annular cover made of one or more parts, fixed to a bearing ring or washer, and positioned to prevent lubricant leakage and contamination. - **Dust Cover**: A thin metal ring cover that extends over the inner space of the bearing without touching the opposite ring or washer, offering protection from dust and debris.

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**Related Bearing Knowledge** - What are the characteristics of the thrust roller bearings from NTN? - Understanding SKF's "Appearance View Strategy" - How to identify high-quality bearings during maintenance

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