What is the SXU-type crossed roller bearing?
Aug 18,2025

The SXU-type crossed roller bearing (SXU cross roller bearing) is a high-precision rolling bearing developed by NEWBEE Transmission. Its core lies in the orthogonal X-shaped arrangement of the cross roller ring — the rollers are staggered at a 90° angle, forming an "X"-shaped contact line, which can synchronously balance radial, axial and overturning moment loads. As a key component of precision transmission systems, NEWBEE Transmission's SXU cross roller bearing, with its split outer ring structure and ultra-thin section (25.4mm) design, increases rigidity by 3-4 times while adapting to the compact installation needs of micro-devices (such as drone motors), making it an ideal choice for industrial precision equipment.

Features of the SXU-type crossed roller bearing (SXU cross roller bearing)

<!--[if !supportLists]-->1. <!--[endif]-->Strong composite load-bearing capacity: The orthogonal roller layout of the SXU cross roller bearing enables it to bear radial, axial and moment loads simultaneously without combining with other bearings, greatly simplifying the equipment structure. NEWBEE Transmission optimizes the contact area of the cross roller ring to ensure uniform load distribution and improve system stability.

<!--[if !supportLists]-->2. <!--[endif]-->Ultra-high rigidity: Thanks to the surface hardening treatment (surface hardness of GCr15 material is HRC60-62), the anti-deformation ability of the SXU cross roller bearing is 3-4 times higher than that of traditional bearings, and the rigidity advantage of the cross roller ring is particularly significant during high-speed operation.

<!--[if !supportLists]-->3. <!--[endif]-->Precise rotation performance: The rotation accuracy of the SXU cross roller bearing reaches P5/P4 grade, and the radial runout is controlled at the nanometer level, meeting the needs of high-precision positioning scenarios. The precision grinding process of NEWBEE Transmission further ensures the operation stability of the cross roller ring.

<!--[if !supportLists]-->4. <!--[endif]-->Ultra-thin and compact design: With a section height of 25.4mm, which is an industry benchmark for ultra-thin design, the SXU cross roller bearing can be easily integrated into equipment with limited space, and the integrated layout of the cross roller ring does not reduce performance due to volume reduction.

5. Lightweight and long service life: The nylon 66 cage reduces the overall weight of the equipment, and the brass cage is suitable for high-speed scenarios to resist deformation; the surface hardening treatment extends the fatigue life of GCr15 material by 30%, making the SXU cross roller bearing of NEWBEE Transmission more durable.

Applications of the SXU-type crossed roller bearing (SXU cross roller bearing)

With its multi-dimensional advantages, the SXU cross roller bearing is widely used in the following fields:

Industrial robots: Rotating joints of robotic arms and supports for harmonic reducers. The composite load-bearing capacity of the SXU cross roller bearing ensures the precise operation of the arm.

Precision machine tools: Rotating axes of five-axis machining centers and CNC turntables. The high rigidity of the cross roller ring meets the requirements of high-speed cutting.

Medical equipment: Rotating gantries of CT scanners and driving units of surgical robots. The low-vibration characteristic of the SXU cross roller bearing ensures imaging accuracy.

Optical instruments: Rotating platforms of laser cutting machines and equatorial mounts of astronomical telescopes. The SXU cross roller bearing with nanoscale precision supports accurate positioning.

Semiconductor manufacturing: Wafer handling robotic arms and alignment mechanisms of lithography machines. The SXU cross roller bearing from NEWBEE Transmission is suitable for clean room environments.

Factors affecting the price of the SXU-type crossed roller bearing (SXU cross roller bearing)

The price of the SXU cross roller bearing is affected by the following factors:

<!--[if !supportLists]-->1. <!--[endif]-->Material selection: The price of the SXU cross roller bearing made of SUS440C stainless steel (suitable for medical/corrosive environments) is 20%-30% higher than that of GCr15 steel.

<!--[if !supportLists]-->2. <!--[endif]-->Precision grade: Due to the high processing difficulty, the price of the P4 grade SXU cross roller bearing is 15%-20% higher than that of the P5 grade.

<!--[if !supportLists]-->3. <!--[endif]-->Specification and size: The price of the SXU cross roller bearing with an inner diameter of 130-300mm is relatively low, while the price of those with an inner diameter > 500mm or custom sizes increases accordingly due to the rise in processing costs.

4. Customization requirements: The price of the SXU cross roller bearing with special grease (such as Krytox® for high temperature/vacuum use) and anti-magnetic composite cages increases by 10%-25%. For specific quotations, please contact NEWBEE Transmission.

What factors need to be considered when purchasing the SXU-type crossed roller bearing (SXU cross roller bearing)?

<!--[if !supportLists]-->1. <!--[endif]-->Size matching: The inner diameter range of the SXU cross roller bearing is 130mm-874mm. It is necessary to accurately measure the inner diameter (d), outer diameter (D) and width (B). NEWBEE Transmission provides a full range of products to adapt to different equipment.

<!--[if !supportLists]-->2. <!--[endif]-->Precision requirements: For high-precision scenarios (such as semiconductor equipment), P4 grade should be selected; for general industrial scenarios, P5 grade is sufficient.

<!--[if !supportLists]-->3. <!--[endif]-->Environmental adaptation: For humid/corrosive environments, priority should be given to the SXU cross roller bearing made of SUS440C material; for vacuum environments, a customized degassing treatment version is required.

<!--[if !supportLists]-->4. <!--[endif]-->Supplier qualifications: Choose a supplier like NEWBEE Transmission that can provide material certificates and technical support to ensure the reliability of the SXU cross roller bearing.

5. Price rationality: By comparing different suppliers, the factory direct supply model of NEWBEE Transmission can reduce the procurement cost of the SXU cross roller bearing.

A high-quality supplier of the SXU-type crossed roller bearing (SXU cross roller bearing) - NEWBEE Transmission

NEWBEE Transmission is a professional manufacturer of SXU cross roller bearings. Having been engaged in the field of cross roller bearings for many years, its SXU series covers inner diameters ranging from 130mm to 874mm and supports customized solutions such as ceramic rollers and special lubrication. Relying on advanced precision grinding equipment and the ISO9001 quality system, NEWBEE Transmission's SXU cross roller bearings have passed strict inspections, and the performance indicators of the cross roller ring are leading in the industry. For parameters or quotations, you can contact us directly. Precautions for using the SXU-type crossed roller bearing (SXU cross roller bearing)

<!--[if !supportLists]-->1. <!--[endif]-->When installing, use the split outer ring structure to fine-tune the preload. Avoid knocking the cross roller ring to prevent deformation, and it is recommended to use special tools.

<!--[if !supportLists]-->2. <!--[endif]-->Inject an appropriate amount of grease before operation (the filling amount is 1/3-1/2 of the internal space). For high-temperature scenarios, Krytox® long-acting grease is recommended.

<!--[if !supportLists]-->3. <!--[endif]-->Regularly check the temperature and vibration value of the SXU cross roller bearing. In case of abnormalities, stop the machine for inspection in time to prolong its service life.

For the latest price, customization plans or technical data of the SXU cross roller bearing, please contact NEWBEE Transmission:

Email: paul@newbeetrans.com

Official website: www.newbeetrans.com

WhatsApp sales@newbeetrans.com +8615090185276