Rolamentos de mancal de ferro 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 seus rolamentos de mancal de ferro 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?
Continue lendo e este guia irá ajudá-lo com isso.
Identifique o tipo de rolamento do mancal
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.
Meça o diâmetro do eixo
Use um paquímetro ou micrômetro para medir com precisão o diâmetro do eixo no qual o mancal será montado. Isto deve ser medido em vários pontos ao longo do comprimento do contato para compensar quaisquer desvios. Registre o diâmetro do eixo para ajudar a selecionar a substituição correta.
Meça as dimensões externas da habitação
Use um paquímetro ou régua métrica para medir a altura, largura e profundidade de todo o alojamento do mancal. Em vez disso, alguns rolamentos especificarão uma dimensão interna do alojamento; portanto, faça ambas as medições, se indicado. Isso ajuda a identificar a série do rolamento e corrigir o espaçamento dos furos dos parafusos.
Determinar o diâmetro do círculo do furo do parafuso
Use uma régua métrica para medir o diâmetro do círculo formado pelos centros dos furos de montagem. Pode haver 2, 4 ou 8 furos. Use esta dimensão junto com o espaçamento dos furos dos parafusos para garantir uma substituição exata.
Medir o diâmetro do furo
Para rolamentos de esferas, use um medidor telescópico ou micrômetro interno para medir com precisão o diâmetro interno no qual o eixo passa. O instrumento deve ser capaz de medir toda a circunferência enquanto estiver dentro do rolamento.
Calcular folgas radiais e axiais
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.