**Oscillating Bearings vs. Ordinary Bearings** Home > Bearing Knowledge > Oscillating Bearings Are Different from Ordinary Bearings *Created on 2018/5/16* var cpro_id = "u3440131";

Why Oscillating Bearings Are Not the Same as Ordinary Bearings

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/*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';

**1. Appearance Characteristics of Oscillating Bearings** A. The diameter and length of the roller are increased for better performance. B. The outer ring rib is used to guide the rollers, reducing stress on them. C. The inner ring rib helps in guiding the rolling elements, improving operation efficiency. D. Cylindrical roller bearings are designed with an integrated layout, offering higher structural strength. E. The outer diameter features oil grooves and holes, ensuring better lubrication and smoother movement. **Ordinary Bearings:** A. The roller body is smaller in both diameter and length. B. Rollers are guided by either the inner or outer ring. C. The cylindrical roller bearing uses a rivet layout, which may loosen over time. D. No oil grooves or holes on the outer diameter, leading to less effective lubrication. **2. Material Selection for Oscillating Bearings** A. The inner and outer rings and rolling elements are made from vacuum-degassed bearing steel, providing excellent fatigue resistance. B. Materials such as aluminum-iron-manganese bronze are used for high strength, good elasticity, and wear resistance. **Ordinary Bearings:** A. Typically made from standard bearing steel. B. Use materials like zinc brass, which have lower strength and poor elasticity. **3. Heat Treatment Process for Oscillating Bearings** A. Inner and outer rings undergo Bay-Machine mixed quenching or martensitic quenching combined with high-temperature tempering, resulting in uniform hardness and reduced internal stress. B. These bearings maintain stability even at temperatures up to 150°C. **Ordinary Bearings:** The heat treatment process is usually limited to basic quenching, which leads to poor impact resistance and thermal stability. **4. Manufacturing Standards for Oscillating Bearings** A. Produced to P6 precision standards, with very small tolerances on inner and outer diameters. B. Roller grouping is tightly controlled, within ≤ 0.002 mm. C. Cylindrical rollers have a slight convex shape to prevent stress concentration. D. Surface finishing is extremely fine, ensuring high-quality finish. **Ordinary Bearings:** A. Usually manufactured to PO or P6 level precision. B. Roller grouping tolerance is larger, up to ≤ 0.005 mm. C. No convexity on the cylindrical roller surface. D. Some raceways are only polished, resulting in a lower finish quality. **5. Internal Clearance in Oscillating Bearings** The clearance is tailored to meet the specific needs of oscillating machinery, ensuring precise control and consistent performance. **Ordinary Bearings:** Clearance is typically based on standard groups (such as C3), leading to less precise adjustment and potential inconsistency. **6. Performance of Oscillating Bearings** They operate with low noise, minimal temperature rise, and high stability, making them ideal for demanding applications. **Ordinary Bearings:** Tend to produce more noise, experience higher temperatures, and have shorter service life due to early fatigue.

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