Cojinetes de chumacera de hierro fundido are a common component in numerous industrial machinery. For example, you can find them in agricultural machinery, construction machinery, and even in conveyor systems. Moreover, it is possible to find cast iron pillow block bearings in material handling systems and package handling systems.
These robust bearings can support the rotating shafts while handling heavy loads. Cast iron pillow block bearings provide excellent vibration dampening and shock load capacity. They can withstand high temperatures and have self-lubricating properties for low-friction operation. Also, ensure that you
compre sus cojinetes de chumacera de hierro fundido from a place that you can trust.
Due to the critical role pillow block bearings play, you should be careful at the time of replacing them. Cast iron construction makes these bearings highly durable even in harsh environments with dirt or moisture. In addition, cast iron distributes loads evenly to resist wear and deformation over long-term use.
Proper installation and maintenance will maximize the lifespan of these sturdy bearings. In other words, you need to take proper measurements and pick the ideal pillow block bearings. It will help you maximize service life and prevent unexpected downtime of your machinery.
Do you wonder how to measure cast iron pillow block bearings correctly?
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Identificar el tipo de cojinete de chumacera
There are three main types - single row deep groove ball bearings, self-aligning ball bearings, and roller bearings. Look for manufacturer markings on the bearing to identify the type. This will determine what dimensions need to be measured.
Mida el diámetro del eje.
Utilice un calibre o un micrómetro para medir con precisión el diámetro del eje en el que se montará la chumacera. Esto debe medirse en múltiples puntos a lo largo de la longitud del contacto para tener en cuenta cualquier desviación. Registre el diámetro del eje para ayudar a seleccionar el reemplazo correcto.
Medir las dimensiones exteriores de la vivienda.
Utilice un calibre o una regla métrica para medir la altura, el ancho y la profundidad de toda la carcasa del soporte. En cambio, algunos rodamientos especificarán una dimensión interior de la carcasa, por lo tanto, tome ambas medidas si así se indica. Esto ayuda a identificar la serie de rodamientos y corregir el espacio entre los orificios de los pernos.
Determinar el diámetro del círculo del agujero del perno
Utilice una regla métrica para medir el diámetro del círculo formado por los centros de los orificios de montaje. Puede haber 2, 4 u 8 agujeros. Utilice esta dimensión junto con el espacio entre los orificios de los pernos para garantizar un reemplazo exacto.
Medir el diámetro del agujero
Para rodamientos de bolas, utilice un calibre telescópico o un micrómetro interior para medir con precisión el diámetro interior por el que pasa el eje. El instrumento debe poder medir alrededor de toda la circunferencia mientras está dentro del rodamiento.
Calcular los juegos radiales y axiales.
Pillow blocks are designed to have specific clearances or 'play' around the shaft. Calculate the radial clearance by subtracting the actual shaft diameter from the measured bore diameter. Use a feeler gauge to estimate axial end play. Record these measurements to get bearings engineered for the same running clearances.
Evaluate bearing condition if replacing
Inspect the bearing for signs of wear, fluting, pitting or cracking while going through the measurement steps. Gently rock the inner race back and forth by hand to feel for any roughness indicating wear. Documenting the current condition helps determine why it failed previously.
Now you have a clear idea of how to measure pillow block bearings. Follow these steps and your replacement bearings will ensure optimal operating performance. Ensure you don’t forget to record lubrication type and hours of operation as well. It can eventually help you overcome unplanned downtime.
This is where NSAR Bearings can help. We are a bearings manufacturer, who maintains a strong reputation by offering the highest quality cast iron pillow block bearings to the market. Follow the steps to take measurements, head to our website, and make your purchase today.