Aerospace Special Bearing

Hangzhou Huaxing Kechuang Holding Group Co., Ltd. is one of the leading manufacturers and suppliers of aerospace special bearing in China. As we have world-leading production equipment and strong manufacturing capabilities, we warmly welcome you to buy bulk high quality bearings at competitive price from our factory.

Thin-section Four-point Contact Ball Bearing (Constant Cross-section Bearing)

Ordinary industrial bearings adopt standard common bearing steel, which is designed for conventional working conditions with stable temperature, ordinary load and low vibration. Such materials have general purity, limited thermal stability, short fatigue life and poor oxidation and corrosion resistance, and cannot adapt to extreme operating environments.

In contrast, aerospace bearings are manufactured with ultra-high-purity special alloy materials exclusive for aviation and aerospace fields. With stricter smelting standards and professional heat treatment processes, these materials deliver outstanding comprehensive performance, including extreme temperature resistance, ultra-long fatigue life, high structural stability, oxidation resistance and corrosion resistance. They can stably operate in harsh scenarios involving ultra-high speed, heavy alternating load, extreme temperature difference and strong vibration, which are completely beyond the bearing capacity of ordinary bearing materials.

Aerospace bearing inner rings, outer rings and steel balls are matched with targeted high-performance materials according to different extreme working scenarios, abandoning ordinary bearing steel:

M50 (AMS6491)：It is the most classic and widely used aerospace bearing steel. It maintains stable high-temperature hardness and excellent fatigue resistance, suitable for long-term operation at temperatures ranging from -50℃ to 320℃. It is mainly applied to aero-engine accessories, rotor parts and transmission system bearings.

M50NiL：An upgraded carburized aerospace steel with higher toughness and impact resistance. It performs excellently under variable heavy-load conditions and effectively resists fatigue damage, making it the preferred material for core load-bearing components of aviation power systems.

9Cr18 / 440C Stainless Steel：Features high hardness and superior corrosion resistance. It is specially used for aviation control system bearings and aerospace equipment that work in humid, oxidizable and corrosive environments for a long time.

Si3N4 Silicon Nitride Ceramic：A lightweight high-end rolling body material with the advantages of ultra-high temperature resistance, insulation performance and low wear. It is mostly used for high-speed aero-engine ceramic hybrid bearings, which can significantly reduce friction heat generated by high-speed operation and improve bearing stability and service life.

MPA / MPB Machined Brass Cage：The mainstream standard cage for aerospace bearings. It has low friction coefficient, excellent thermal stability and strong vibration resistance, and will not deform or fail under long-term high-speed and high-temperature operating conditions.

PEEK Engineering Plastic Cage：Lightweight, self-lubricating, low-noise and fatigue-resistant. It is widely used in lightweight and high-speed aerospace precision components to reduce overall equipment weight and optimize operating stability.

Titanium Alloy Cage：Combines ultra-high strength, light weight and excellent corrosion resistance, adapting to extreme working conditions of high altitude, heavy load and severe temperature changes in aerospace equipment.

Aerospace bearings are key core components for rotating, transmission and motion control of aviation and aerospace equipment, mainly applied in high-precision, high-reliability and extreme working parts, covering the following core positions:

Aircraft Engine & Power System Main turbine shafts, engine rotor support, accessory transmission bearings, fuel pump and oil pump rotating parts, enduring high speed, high temperature and alternating load.

Flight Control System Flight control actuators, rudder and flap transmission mechanisms, aviation hydraulic motor bearings, ensuring sensitive and precise flight attitude control.

Aircraft Structural Auxiliary Mechanisms Landing gear retracting and positioning components, cabin door transmission bearings, airborne equipment rotating brackets, adapting shock and vibration during takeoff, landing and flight.

Helicopter Special Components Main rotor shaft bearings, tail rotor transmission bearings, key vibration-resistant load-bearing parts for helicopter power rotation systems.

Aerospace & Satellite Equipment Satellite movable adjustment components, aerospace precision instrument rotating shafts, spacecraft low-temperature vacuum motion units, adapting high-altitude vacuum and extreme temperature difference environments.

High-End Industrial Extension Applications Besides aviation fields, they are also used for precision spindles, semiconductor equipment and medical precision transmission parts that require ultra-high stability.

Aerospace bearings are applied to core rotating and transmission components of aircraft and aerospace equipment. Typical positions include aero-engine accessory transmission systems, turbine shafts, main rotor systems, flight control actuators, landing gear auxiliary mechanisms, aviation hydraulic transmission parts, helicopter rotor assemblies, aerospace precision instruments and satellite movable structural components.

Established in May 1995, Hangzhou Huaxing Kechuang Holding Group (HXB, formerly known as Hangzhou Huaxing Bearing Co.,Ltd) is a professional technology enterprise integrating R&D, production and sales. Over 30 years of development, we run two major manufacturing bases: Hangzhou Yijia Precision Bearing Co.Ltd. and Zhejiang Ruiyang Bearing Technology Co.,Ltd.

HXB focuses on high-end bearings such as high-precision angular contact ball bearings, deep groove ball bearings and NEV bearings. Our products widely applied in intelligent manufacturing, 3C industry, CNC centers, precision machinery, robots, aerospace, motors and household appliances.

Supported by advanced digital MES & SPC management systems, we have passed ISO9001:2015, IATF16949:2016 and ISO14001 international standard certifications, ensuring reliable product quality and standardized production.

We uphold rigorous craftsmanship and innovative development, committed to delivering superior angular contact bearing solutions and creating long-term value for global partners.

∗ 30 years of dedicated development

HXB was founded in 1995, with nearly 30 years of dedicated development, HXB now operates6 subsidiaries.

 

∗ 2 high-tech R&D centers

∗ 2 modern manufacturing factories - Hangzhou Yijia Precision Bearing Co., Ltd. and Zhejiang Ruiyang Bearing Technology Co., Ltd.

∗ Supported by advanced digital MES and SPC management systems

∗ IATF16949:2016, ISO9001:2015 and ISO14001 certifications

∗ High-end equipment and high-quality material

1. Hangzhou Factory - YJB

Founded in June 2007, YJB is located in Hangzhou. As a subsidiary of HXB Group, we are a national high-tech enterprise and provincial science & technology enterprise specializing in R&D and manufacturing of high-precision, high-speed, advanced, special and professional bearings.

Core Capabilities & Intelligent Manufacturing

• Product Size: Inner diameter Φ3–Φ300mm
• Precision Classes: P2, P4 (ultra-precision grades)
• Annual Capacity: 3 million sets of precision bearings in a lean & intelligent factory
• Equipment Investment: Over RMB 3 million in world-leading precision testing instruments
• Digital Transformation: with full deployment of MESYS bearing design platform, ERP, MES, WMS, SPC real-time quality monitoring and OA systems, building a benchmark smart manufacturing plant.

2. Huzhou Factory

In 2021, the deep groove ball bearing factory relocated from Hangzhou to Huzhou. It operate in a 10,000㎡ production facility with a team of 75 employees, focused on the R&D, and manufacturing of high-performance deep groove ball bearings.

We maintain a professional engineering and quality system to ensure stable precision and reliability.

Engineering Team: 4 bearing design & process engineers, accounting for 5% of staff.

Quality Team: 15 quality personnel, including 2 quality engineers, 20% of staff, covering incoming inspection, in-process control and final testing.