Application of thin section four-point contact ball bearings in the field of medical devices

What is thin section four point contact ball bearing?

Thin section four point contact ball bearings are mainly used to withstand radial loads, but when the radial clearance of the bearing is increased, they have a certain degree of angular contact bearing performance and can withstand combined radial and axial loads. When the speed is high and thrust bearings are not suitable, they can also be used to withstand pure axial loads. Compared with other types of bearings of the same size, this type of bearing has a small coefficient of friction and a high limit speed. But it is not resistant to impact and is not suitable for bearing heavy loads.

Features of thin section four-point contact ball bearings

Compact structure: The thin section design of the bearing makes it relatively small in radial size, which can effectively save installation space, especially suitable for equipment with high space requirements, such as aerospace, precision instruments and other fields.

Light weight: Due to the thin section structure, the weight of the bearing is lighter than that of ordinary bearings, which is very beneficial for some application scenarios that need to reduce weight, such as robot joints, high-speed rotating parts, etc., which helps to reduce the overall energy consumption of the equipment and improve the motion performance.

Good performance at high speed: The structure of the four-point contact ball bearing makes the point contact between the steel ball and the raceway, with low friction resistance, combined with the thin-wall design, the moment of inertia is low, so it can run stably at high speed, and is suitable for equipment with high speed requirements such as high-speed motors and centrifuges.

High load carrying capacity: Although it is point contact, with reasonable design and optimization, Thin section four-point contact ball bearings can withstand large radial and axial loads. Especially in the case of bearing pure axial load or large axial load, it shows good load-bearing performance, and can be applied to some mechanical structures that need to bear large axial force.

Good flexibility: This type of bearing can bear both radial and axial loads, and can be flexibly carried in different directions, and has good adaptability to complex stress conditions, and is often used in some mechanical parts that require multi-directional load capacity, such as rotary tables in industrial automation equipment.

Easy installation: The structure of thin section four-point contact ball bearings is relatively simple, and the installation and disassembly are relatively convenient, which can reduce the maintenance cost and downtime of the equipment and improve the efficiency of the equipment.

Application of thin section four-point contact ball bearings in the field of medical devices

Thin section four-point contact ball bearings have a variety of specific applications in the medical device sector, and here are some common examples:

Medical imaging equipment

CT scanners: Rotating frames in CT scanners require high-precision, high-reliability bearings to support. Thin section, four-point contact ball bearings withstand the weight of the frame and the centrifugal force generated as it rotates, allowing the X-ray tube and detector to perform precise rotational scans around the patient for high-quality tomographic images. Its high-precision rotation performance ensures uniform thickness of the scanned layer and high image resolution.

MRI equipment: In MRI equipment, components such as magnet systems and gradient coils require high-precision positioning and rotation. Thin section four-point contact ball bearings are used to support the rotational motion of these components, providing stable support and precise angular control to ensure the uniformity and stability of the magnetic field for clear and accurate NMR images. In addition, the bearing's low noise characteristics also help to reduce the noise generated during the operation of the equipment, providing a more comfortable examination environment for patients.

PET-CT all-in-one machine: The PET-CT all-in-one machine combines the functions of positron emission tomography (PET) and computed tomography (CT), which requires higher accuracy of the device. Thin section four-point contact ball bearings play a key role in this, as they meet the high accuracy requirements of rotational scanning in the CT section and the precise motion control of the PET section to ensure that the two imaging modes can be accurately fused to provide doctors with more comprehensive and accurate diagnostic information.

Medical testing equipment

Centrifuge: Centrifuge is a commonly used device in medical testing to separate different components in samples such as blood and cells. Thin section four-point contact ball bearings are used in the rotor part of the centrifuge, which can withstand the huge centrifugal force generated when rotating at high speed, ensuring the smooth operation of the rotor and accurate speed control. This helps to improve the effectiveness and accuracy of sample separation, providing high-quality samples for subsequent detection and analysis.

Microscopes: In high-end microscopes, especially those used for scientific research and pathological analysis, precise focusing and rotation mechanisms are required. Thin section four-point contact ball bearings are used in the nosepiece converter of the microscope and the rotating part of the stage, providing smooth, precise rotational motion, allowing the operator to quickly and accurately switch objectives and adjust the viewing angle of the sample, improving the imaging quality and observation efficiency of the microscope.

Medical surgical equipment

Arthroscopic surgical instruments: Arthroscopic surgery is a minimally invasive procedure that requires the use of miniaturized, high-precision surgical instruments. Thin section four-point contact ball bearings are applied to the rotating joint part of the arthroscopy, which can realize the flexible rotation and precise angle control of the arthroscopy, so that the doctor can carry out all-round observation and operation in the joint cavity. At the same time, the high precision and low friction characteristics of the bearings also help to reduce the wear and tear of surgical instruments, and improve the safety and success rate of surgery.

Electric Bone Drills: In orthopedic surgery, electric bone drills require precise speed control and stable torque output. Thin section four-point contact ball bearings are used for the motor shaft and drill bit connection part of the bone drill, which can withstand the axial and radial forces generated by the drill bit during the drilling process, ensure the high-speed rotation and accurate feed of the drill bit, so that the doctor can accurately drill and cut the bone, and reduce surgical trauma and complications.

Thin section four point contact ball bearings supplier

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