Rolling bearing vocabulary (2)

Rolling Bearing Vocabulary (2)

Source: China Bearing Network | Time: 2013-01-25

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Spherical plain bearings are designed with a spherical sliding surface, making them ideal for applications that require swaying, tilting, or rotational movements. These bearings are often used in machinery where misalignment is common. Combined bearings refer to a set of rolling bearings that combine two or more bearing arrangements. Examples include needle roller and thrust cylindrical roller combined bearings, needle roller and thrust ball combined bearings, and needle roller and angular contact ball combined bearings. These types are useful when multiple loads need to be supported simultaneously. Other bearings encompass all rolling bearings that do not fall into the categories mentioned above. They may have unique designs or specialized functions depending on the application. Bearing parts are components of a rolling bearing 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 several raceways. - **Flat retaining ring**: A flat, detachable washer used as a rib for the inner or outer ring of a radial cylindrical roller bearing. - **Oblique ring (separable)**: A separable ring with an "L"-shaped cross-section, sometimes used as a rib 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 rows of rollers. - **Stop ring**: A single-cup ring with a stable cross-section, installed in an annular groove to provide axial positioning. - **Lock ring**: A single-cup ring with a stable cross-section, used to hold the roller or cage in place within the bearing. - **Spacer**: A ring-like component placed between two bearing rings or washers to maintain proper axial spacing. - **Sealing ring**: An annular cover that touches or forms a narrow labyrinth gap with another part of the bearing, preventing lubricant leakage and foreign object intrusion. - **Dust cover**: A thin metal cover fixed to a bearing ring or washer, extending toward the opposite ring to protect the internal space without touching it.
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