High Temperature Resistance Bearing

Hangzhou Huaxing Kechuang Holding Group Co., Ltd. is one of the leading manufacturers and suppliers of high temperature resistance 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.

High Temperature Resistance Ball Bearing

High temperature resistance ball bearings are specially customized rolling bearings designed to operate stably in continuous high-temperature, high-dust and extreme thermal cycling environments. Different from ordinary standard bearings, they adopt exclusive material matching, heat treatment process and high-temperature lubrication solution, which effectively avoids failure problems such as thermal expansion jamming, lubricant carbonization, rusting and premature wear under high-temperature working conditions. They are core components for high-temperature industrial rotating equipment.

The high-temperature resistance of the bearing depends entirely on the matching of internal components. Each part has dedicated material and process requirements to adapt to high-temperature environments:

1. Inner Ring & Outer Ring

Main Material : High-carbon chromium bearing steel (GCr15 / SUJ2) with special high-temperature quenching and tempering treatment; high-grade high-temperature stainless steel (440C, 304) for ultra-high temperature models.

Process Feature : Secondary stress relief annealing is adopted to ensure stable hardness and dimensional accuracy at 200℃–500℃, prevent thermal deformation and raceway failure.

2. Steel Balls

Material : High-purity high-temperature resistant steel balls or ceramic balls (Si3N4 silicon nitride).

Function : Maintain roundness and surface smoothness under long-term high temperature, avoid ball deformation and scratching the raceway; ceramic balls are suitable for ultra-high temperature and high-insulation scenarios.

3. Retainer (Cage)

Ordinary nylon and plastic cages are prohibited. Three mainstream high-temperature configurations:

Stamped Steel Cage : Most common, good toughness, resistant to 250℃–300℃, cost-effective for general high-temperature equipment.

Machined Brass Cage : Best thermal stability, no deformation at 350℃–450℃, low friction, suitable for continuous high-speed and high-temperature operation.

Graphite Cage : Ultra-high temperature resistant (up to 500℃+), self-lubricating function, suitable for extreme high-temperature no-lubrication environments.

4. Seals / Shields

Metal Shields (ZZ) : Full metal closed structure, completely resistant to high temperature aging, suitable for most high-temperature dust environments.

Special Rubber Seals (2RS) : Customized FKM / Viton fluororubber seals, resistant to 250℃ high temperature, anti-aging and anti-carbonization.

5. High-Temperature Lubricant (Core Accessory)

Ordinary lithium-based grease will carbonize and fail above 120℃. High-temperature bearings are filled with high-temperature composite grease, silicone grease or solid molybdenum disulfide lubricant, which can maintain stable lubrication without drying or coking in the range of 200℃–500℃.

All scenarios with ambient high temperature, component heating, thermal cycling, or high-temperature flue gas radiation must use professional high-temperature bearings instead of standard bearings. Typical applications are as follows:

High-Temperature Heating & Drying Equipment : Oven conveyor rollers, drying furnace rollers, heat setting machine rollers, industrial baking equipment rotating parts.

Metallurgy & Forging Industry : Steel rolling equipment, high-temperature conveyor lines, furnace door transmission mechanisms, hot forging auxiliary equipment.

Chemical & Petrochemical Industry : High-temperature reaction kettle accessories, thermal fluid conveying equipment, high-temperature steam mechanical parts.

Automotive & Mechanical Thermal Systems : Engine peripheral accessories, exhaust fan bearings, high-temperature turbo auxiliary parts, brake system moving parts.

Environmental Protection & Energy Equipment : High-temperature flue gas fans, boiler auxiliary machinery, waste heat recovery equipment, incinerator transmission components.

Textile & Printing Industry : High-temperature setting machines, drying calendars, textile high-temperature shaping roller shafts.

Failure Risk Reminder : If ordinary bearings are used in the above high-temperature environments, the grease will quickly carbonize, resulting in bearing seizure, loud noise, raceway peeling and rapid scrapping within a short time.

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.

After more than 20 years of development, HXB's main products involves deep groove ball bearings, angular contact ball bearings, high precision spindle bearings, etc. Our bearings are wildly used in electric motors, machinery tool spindle, CNC, NEVs and other fields.

Our production capacity:

• Deep groove ball bearings: 34 production lines, 30,000,000pcs per year
• Angular contact ball bearings: 14 production lines, 3,000,000pcs per year

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

HXB has a set of more than 10 years of technical optimization precipitation, with the international advanced development concept of the development process, with the ability of design analysis, engineering production, test evaluation and technical management.

It has dozens of national patents. The technicians are proficient in using computer aided design software. PLM system is being progressively implemented.

∗ 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.