Lubrication Limits and Equipment Requirements for Full Complement Cylindrical Roller Bearings Lubrication Limits: The breakaway torque of grease bearings at lower temperatures, and the breakaway torque of grease lubrication applications generally increases significantly. First of all, torque does not depend on the firmness of the grease, and is usually determined by the rheological properties of the grease. The high temperature limit of grease is usually determined by the thermal stability, oxidative stability and antioxidant properties of the base oil. Equipment Requirements: Equipment planners must evaluate the effect of temperature on equipment performance. For example, tight machine tool spindle bearings can be sensitive to thermal stretch. For some spindles, you need to pay special attention when the operating temperature is higher than the ambient temperature of 20°C to 35°C. Most industrial equipment can operate at fairly high temperatures. For example, drive gears can be exposed to temperatures as high as 93°C. The gas turbine and the rest of the plant can be continuous at temperatures above 100°C. However, when operating at elevated temperatures for extended periods of time, the amount of complexes may be affected if the shaft and bearing housing are machined and thermally disposed. While bearings typically operate at temperatures up to 120°C, the 80°C to 95°C temperature limit is realistic. Higher operating temperatures increase transient temperature peaks and increase the likelihood of Timken bearings. Sample tests are conducted based on detailed usage, which helps determine operating temperature limits. Equipment planners should trade all relevant components to finalize the required operating temperature.
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