Reducing noise in rodamientos de sección delgada involves addressing potential sources at various stages: selección de rodamiento, instalación, lubricación, y operación. Los cojinetes de sección delgados son particularmente sensibles debido a su alta relación diámetro a cruz, haciéndolos más flexibles y susceptibles a la distorsión.
Cómo reducir el ruido de los rodamientos de sección delgada
Bearing Selection & cuando la precisión de funcionamiento del rodamiento no cumple los requisitos:
Grado de mayor precisión: Choose bearings with higher ABEC (Annular Bearing Engineers’ Committee) or ISO (Organización Internacional de Normalización) precision classes. Higher precision means tighter tolerances on raceway geometry, ball sphericity, y acabado superficial, leading to smoother operation.
Internal Clearance: Select the appropriate internal clearance (C2, C0, C3, etc.). Too much clearance can lead to ball skidding and noise, while too little (or excessive preload) can increase friction, calor, y ruido. The correct clearance depends on the application, fit, and operating temperature.
Cage (Retainer) Material & cuando la precisión de funcionamiento del rodamiento no cumple los requisitos:
Polymer Cages: Nylon (polyamide) or PEEK cages can dampen vibrations and run quieter than steel cages, especially at high speeds.
Crown-type or Snap-over Cages: These can sometimes be quieter than ribbon-type cages.
Full Complement (No Cage): While offering higher load capacity, these are generally noisier due to ball-to-ball contact.
Ball Material: Ceramic balls (p.ej., Silicon Nitride, Si3N4) are lighter, harder, and smoother than steel balls. This reduces centrifugal forces, tener puesto, fricción, and can lead to quieter operation.
Seals and Shields: While primarily for keeping contaminants out and lubricant in, they can offer a slight damping effect. Sin embargo, rubbing seals can also be a source of noise if not properly designed or lubricated.
Instalación adecuada & Montaje (CRITICAL for Thin Sections):
Housing and Shaft Geometry:
Roundness & Cilindricidad: Thin section bearings conform to the shape of the shaft and housing. Any out-of-roundness or taper in the mating components will distort the bearing rings, leading to uneven load distribution, increased stress, y ruido. Use high-precision machining for mating surfaces.
Concentricity & Perpendicularidad: Ensure shaft and housing bores are concentric and shoulders are perpendicular to the axis. Misalignment is a major noise contributor.
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More detailed information about how to reduce the noise of thin section bearings can be found by clicking visit: https://www.lynicebearings.com/a/blog/how-to-reduce-the-noise-of-thin-section-bearings.html
