As a core component that bears comprehensive loads in the industrial field, slewing bearings have become the key support for the precision rotation system of modern medical equipment due to their high precision, high reliability and compact structure. In high-end medical equipment such as gamma knives, CT machines, and MRI equipment, slewing bearings not only bear the core functions of component rotation and positioning, but also ensure the accuracy and safety of the diagnosis and treatment process through their precise design. Xuzhou Wanda Slewing Bearing Co., Ltd.  is a professional manufacturer with many years of experience in making slewing bearings.

1. Technical features that meet medical needs

The precision requirements of rotating parts in medical equipment are very strict. Taking the gamma knife as an example, its treatment head needs to achieve micron-level positioning within a 360-degree range. The slewing bearing adopts a single-row four-point contact ball structure, using a four-point contact design between the steel ball and the arc raceway. It can simultaneously withstand axial force, radial force and overturning moment to ensure the absolute stability of the treatment head during rotation. At the same time, the precision machining process of its inner and outer rings ensures that the axial clearance is controlled within 0.05mm, and the surface hardened raceway with a hardness of HRC55-62 effectively resists wear during long-term operation, ensuring that the equipment life exceeds 100,000 hours.

2. Typical application scenarios

Imaging diagnostic equipment: The scanning frame of the CT machine needs to carry hundreds of kilograms of detectors and radiation source components. The slewing bearing disperses the axial and radial loads to independent raceways through a three-row roller structure, achieving 360-degree unlimited rotation.

Radiotherapy equipment: The frame rotation system of the linear accelerator adopts a lightweight slewing bearing

which reduces the moment of inertia while ensuring the load-bearing capacity, increases the positioning speed to 3 rpm, and significantly shortens the treatment preparation time.

Surgical robot: The robotic arm joint of the da Vinci surgical robot adopts a cross-roller slewing bearing

Its 1:1 cross-arranged roller design increases the radial load capacity by 30%, meeting the high-precision force feedback requirements in minimally invasive surgery.

From precise diagnosis and treatment to intelligent surgery, slewing bearings rotate steadily at a speed of thousands of revolutions per minute, supporting the development of medical equipment towards higher precision and reliability. With the integration of composite materials and intelligent sensing technology, medical-grade slewing bearings in the future will realize intelligent functions such as self-diagnosis and adaptive adjustment, bringing revolutionary breakthroughs to the medical industry. Please contact us，if you have any question for slewing bearings.