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Angular contact ball bearings are an essential component in many machines and devices that require high-speed operation and precise movement. They are designed to handle both radial and axial loads, making them versatile and useful in various applications.
Angular contact ball bearings are a type of rolling-element bearing that can handle both radial and axial loads. They are designed to have an angle between the bearing axis and the line connecting the points of contact between the balls and the raceways, allowing them to support both types of loads. The contact angle can be altered by adjusting the relative position of the inner and outer rings, thus allowing the bearing to handle different types of loads. The deeper the angle between the bearing and its axis, the greater the axial load the bearing can carry. Because the axial load is proportionate to the radial load, a greater axial load capacity means less radial load capacity.
Angular contact ball bearings work by distributing the load evenly across the balls and the raceways. When the bearing is subjected to radial loads, the load is distributed radially across the balls and the raceways. Similarly, when the bearing is subjected to axial loads, the load is distributed axially across the balls and the raceways.
The contact angle is a critical factor in determining the bearing's ability to handle both types of loads. A smaller contact angle means that the bearing can handle higher radial loads, whereas a larger contact angle means that the bearing can handle higher axial loads.
Angular contact ball bearings typically have a cage that holds the balls in place and prevents them from coming into contact with each other. This ensures that the load is distributed evenly across the balls and that they move smoothly and without friction.
◆Single-row angular contact ball bearings: These bearings have a single row of balls and can handle axial loads in one direction. They are commonly used in applications such as machine tools, pumps, and compressors.
◆Double-row angular contact ball bearings: These bearings have two rows of balls and can handle both radial and axial loads in both directions. They are ideal for applications with high radial and axial loads, such as car hubs and industrial machinery.
◆Four-point angular contact ball bearings: These angular contact ball bearings have four points of contact between the balls and the raceways, allowing them to handle both radial and axial loads. They are commonly used in robotics and machine tools.
◆Angular contact thrust ball bearings: These bearings have a raceway that is offset from the bearing axis, which enables them to handle high axial loads. They are widely used in applications such as machine tool spindles and axial fans.
◆Hybrid angular contact ball bearings: These bearings combine the features of angular contact ball bearings and ceramic bearings. They are suitable for applications that require high speeds and temperatures, such as aerospace and medical equipment.
The choice of angular contact ball bearing depends on the specific application and load requirements.
Angular contact ball bearings have several advantages over other types of bearings. Some of these advantages include:
◆High-speed operation: Angular contact ball bearings are designed to operate at high speeds, making them suitable for applications where speed is critical.
◆Precision movement: Angular contact ball bearings are designed to provide precise movement, making them suitable for applications that require accuracy and repeatability.
◆Versatility: Angular contact ball bearings can handle both radial and axial loads, making them versatile and useful in various applications.
◆High load capacity: Angular contact ball bearings can handle high loads, making them suitable for heavy-duty applications.
◆Long service life: Angular contact ball bearings are designed to withstand high temperatures and high levels of vibration, ensuring a long service life.
◆Minimal maintenance: Angular contact ball bearings require minimal maintenance, making them ideal for applications where downtime must be kept to a minimum.
Regular maintenance is essential to ensure the long service life of angular contact ball bearings. Maintenance tasks include lubrication, inspection, and replacement of worn or damaged parts.
◆Lubrication: Angular contact ball bearings require regular lubrication to reduce friction and wear. The type and amount of lubrication required depend on the application and the angular contact ball bearing's operating conditions. Over-lubrication can cause overheating, whereas under-lubrication can cause premature wear.
◆Inspection: Regular inspection of angular contact ball bearings is essential to detect any signs of wear or damage. The bearings should be inspected for signs of rust, corrosion, or pitting. Any worn or damaged parts should be replaced promptly to avoid further damage to the bearing.
◆Replacement: Angular contact ball bearings should be replaced when they have reached the end of their service life or when they show signs of wear or damage that cannot be repaired.
Angular contact ball bearings are an essential component in many machines and devices that require high-speed operation and precise movement. They are designed to handle both radial and axial loads, making them versatile and useful in various applications. Angular contact ball bearings come in different types and sizes, making it possible to select the right bearing for a particular application. With regular maintenance and proper handling, angular contact ball bearings can provide long service life and reliable operation.
Angular contact ball bearings are used in various applications where high-speed operation, precision movement, and high load capacity are required. Some of the most common applications include:
◆Machine tools: Angular contact ball bearings are used in machine tools such as lathes, milling machines, and grinding machines, where high-speed operation and precision movement are essential.
◆Pumps: Angular contact ball bearings are used in pumps, where they help to provide smooth and efficient movement of the pump's rotor.
◆Aerospace industry: Angular contact ball bearings are used in the aerospace industry, where they are required to handle high loads and operate at high speeds.
◆Robotics: Angular contact ball bearings are used in robotics, where they help to provide precise and accurate movement of the robot's joints.
◆Automotive industry: Angular contact ball bearings are used in the automotive industry, where they are used in applications such as wheel bearings and steering systems.
◆Medical equipment: Angular contact ball bearings are used in medical equipment such as MRI machines, where they help to provide smooth and precise movement.
As special angular contact ball bearings, Super-precision spindle bearings are ideal for machine tools spindle units. The bearings are designed also to minimize noise, vibration and heat generation.
QJ218-N2-MA belongs to a four-point contact ball bearing. It has an inner diameter of 90mm, an outer diameter of 160mm, a thickness of 30mm, a single-row bearing with locating grooves, a solid brass cage and an outer ring guide.
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