IKO thrust ball bearing raceway noise reason analysis and rust prevention maintenance method

Why the noise, bearing raceway anatomy of a. Randomness of noise and vibration; b。 The vibration frequency above 1 KHZ; c。 Regardless of speed change, the main frequency noise it is kept constant and the sound pressure level with the increase of rotational speed and the progress; d。 When the radial clearance increases, the sound pressure level increased dramatically; e. Bearing stiffness increases, the lower the total sound pressure level, even if the speed increases, the total sound pressure level increases; f。 Smooth agent, the higher the viscosity, the lower the sound pressure level, but the fat is smooth, the appearance of its viscosity, soap fiber size can influence the noise value. Race after the sound source is under load of ring caused by the inherent vibration. Because of the ring and rolling body elastic contact nonlinear vibration system. When smooth or machining accuracy is not high will stir up related to the elastic characteristics of natural vibration and noise was transmitted to the air. As is known to all, even if is to use the contemporary the most advanced manufacturing technology and processing IKO bearing parts, its work there will always be different levels of small geometric error, thus make the raceway and rolling body produce tiny waver between excited vibration system natural vibration. Although thrust ball bearing raceway noise is not to prevent, but can take work appearance, high precision machining parts correctly using IKO bearing vibration and accurate use of bearing to noise reduction. Second, the rust prevention maintenance method 1, soaking method: IKO bearing by soaking in antirust oil, make its appearance on the adhesive layer of anti-rust oil. The temperature of the oil film thickness can be controlled after antirust grease or viscosity to achieve. 2, brush method: used for soaking or spraying IKO bearing or not apply special shape bearing, brush should not only pay attention to not produce rust-proof oil accumulation, also want to pay attention to avoid leakage. 3, spray method: some large thrust ball bearing cannot be oiled by soaking method, ordinary about 0. 7 mpa pressure filtration squeeze the air in the middle of the clean air stop spraying. Spray method used solvent XiShiXing rust-proof oil or thin layer of anti-rust oil, but must use perfect fire prevention and labor safeguard measures.