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About Us
QIBR brings design, research and development, manufacturing and service together to deliver standard and custom bearings for demanding industries.
Company profileAbout QIBR
Precision bearings at every scale.
QIBR manufactures more than 6,000 bearing types across eight product categories, with outer diameters ranging from 8 mm to 8,000 mm. From compact precision bearings to large-scale assemblies, our manufacturing range is built for demanding industrial applications.
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Quality Control
Precision grades up to P2 are supported by online inspection and SPC process control for consistent production quality.
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Certifications
Our quality and environmental systems are supported by ISO 9001, ISO 14001, CE and SGS certifications.
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Responsibility
Responsible manufacturing, environmental care and long-term customer partnerships guide how we improve products and services.
Our responsibility
Scale & reach
QIBR In Numbers.
Four figures that define QIBR’s manufacturing reach.
- Years of bearing expertise
- 22+
- Export markets
- 50+
- Customers served
- 2,000+
- Bearings annually
- 40M+
Design, manufacturing and service.
Industrial markets worldwide.
Long-term customer relationships.
Across the product portfolio.
Engineering at QIBR
Our Technology
The core of our business is creating value for customers and adopting a customer-centric sales strategy.
With over 20 years of industry experience, we have served world-leading bearing manufacturers and numerous Fortune 500 companies. We provide customized solutions, continuously enhance the quality of our products and services, and establish effective feedback mechanisms to create value for our customers, ultimately achieving long-term success for our company.
QIBR Bearings
Product Categories
Slewing Bearing
The slewing bearing consists of five essential components: the inner ring, which rotates; the outer ring, which remains stationary; rolling elements that facilitate movement; spacers for even distribution; and seals that protect against contaminants and retain lubrication.
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Cross Roller Bearing
Cross roller bearings are commonly used in various applications where high precision, rigidity, and load-bearing capacity are required. Some of the key applications include: Machine tools: it is extensively used in machine tool spindles, rotary tables, and indexing heads due to their ability to provide high rigidity and accuracy, allowing for precise machining operations. Robotics: These bearings are essential components in robotic arms and joints, enabling smooth and precise movement while supporting heavy loads. Medical equipment: Cross roller bearings are used in medical imaging equipment such as CT scanners and MRI machines, where they support rotating components with high precision and stability. Aerospace: In aerospace applications, cross roller bearings are employed in aircraft landing gear, flight control systems, and satellite antennas, where they must withstand extreme conditions and provide reliable performance. Semiconductor manufacturing: Cross roller bearings are used in semiconductor manufacturing equipment, such as wafer handling robots and lithography machines, where they play a crucial role in ensuring precise positioning and alignment of components. Precision instruments: These bearings find applications in various precision instruments, including metrology equipment, optical devices, and measuring instruments, where they contribute to high accuracy and stability.
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Thin-Section Ball Bearing
Thin-section bearings are a series of bearings designed with limited widths and thicknesses (cross-sections), and each cross-section has a wide range of bore diameters. Most radial ball bearings are designed as the bore diameter increases, the width and thickness of the bearing change proportionally. Thin-section bearings are designed higher efficiency compared to standard bearing sizes, thereby helping to reduce the overall cost of the system. “The cross-section of thin-section bearings remains the same while the bore diameter increases. The thin-section bearing series consists of 12 main cross-section groups, ranging from 3/16″ to 1″, and bore diameters from 1″ to more than 40”. Thin-section bearings are made of 52100 bearing steel or stainless steel material. They can also be plated with chromium. These sizes can be equipped with seals or shields. Thin-section bearings are also made with one of three different contact methods; radial contact, angular contact and four-point contact. These options and a variety of ball and cage types constitute a variety of parts, even when the cross-section of the thin-section bearing series is limited.
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Angular Contact Ball Bearing
Angular contact ball bearings are more suitable for high-speed running occasions, they could carry both radial load and axial load. the axial load carrying capacity is related to the contact angle. The larger the contact angle, the greater the axial load that can be carried. The limiting speed of angular contact ball bearings is higher than other types of bearings of the same size. They are usually used in pairs, because they bear the effect of radial load and also produce axial force components. When working, the angular contact ball bearing can eliminate the internal clearance of the angular contact ball bearing due to the axial load after installation, which also relatively improves the rotation accuracy of the angular contact ball bearing.
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