Product Introduction

High Temperature Resistant Bearings are bearings specifically designed for high-temperature environments and are suitable for transmission systems in metallurgical, chemical, mining, and high-temperature industrial machinery.

Product Features

Durable: High-temperature resistant bearings are made of GCr15SiMn or custom alloy steel, which does not soften or deform at high temperatures and has a service life of 3-5 years.

Precision Machining: Inner and outer rings are precision CNC machined with tolerances controlled within +0.2 mm, ensuring smooth and vibration-free high-speed operation of the equipment.

High-Temperature Sealing Design: 250℃ fluororubber outer layer + stainless steel inner protective ring, effectively preventing dust, fire, and corrosion.

Applicable Materials: Steel, iron ore, limestone, and other high-temperature processed materials.

Why We Are the Leading Manufacturer of High Temperature Resistant Bearings

We offer a wide range of products, covering more than 50 series, from deep groove ball bearings to tapered roller bearings.

Our company implements strict quality control, certified by ISO9001 and TS16949.

We provide full-cycle customer service, supporting customers from bearing selection to installation and maintenance.

Our factory is equipped with advanced CNC grinders and vacuum heat treatment furnaces, ensuring stable production.

Frequently Asked Questions

Q: Are high-temperature resistant bearings easy to install?

A: Standardized design allows for quick installation and adapts to both dry and lubricated systems.

Q: How to clean the bearings?

A: Use a neutral detergent to clean the outer surface. Avoid direct exposure of the internal structure to high-pressure water.

Q: Can the appearance be customized?

A: Outer ring color and markings can be customized upon request.

Technical Parameters

Parameter Category	Details
Bearing Type	Deep groove ball bearings, cylindrical roller bearings (high-temperature class)
Material	- Rings: GCr15SiMn heat-resistant steel (HRC58-62 after triple tempering) - Optional: 440C stainless steel (for 300°C+ applications) - Coatings: PVD TiAlN (temperature resistance ↑30%)
Seal Design	- Double-lip fluororubber (FKM) seal (resistant to 250°C) + stainless steel shield - Metal bellows seals (for 400°C+), IP65 protection
Dimension Range	- Bore: 30mm - 150mm - Outer Diameter: 62mm - 215mm - Width: 16mm - 60mm
Load Capacity	- Dynamic Load Rating (C): 32kN - 180kN - Static Load Rating (C0): 40kN - 220kN (tested at 200°C with ≤10% capacity loss)
Temperature Range	- Standard: -40°C - 200°C (continuous operation) - High-temperature: -40°C - 300°C (with special steel & grease) - Short-term peak: 350°C (≤2 hours)
Speed Rating	- Ball bearings: 8,000rpm (200°C), 5,000rpm (300°C) - Roller bearings: 5,000rpm (200°C), 3,000rpm (300°C)
Friction Torque	- ≤0.6N·m (200°C, lubricated) - High-temperature grease: synthetic polyurea (NLGI 2-3, resistant to 300°C)
Precision Class	- ABEC-3 (standard) - ABEC-5 (available for precision hot-rolling mills)
High-Temp Performance	- Thermal expansion coefficient: 12×10⁻⁶/°C - Hardness retention: ≥HRC55 at 200°C (tested per ISO 281)
Lubrication	- Service life: 10,000 hours (200°C), 6,000 hours (300°C) - Re-lubrication interval: 8,000 hours (standard), customisable
Certifications	ISO 9001:2015, RoHS compliant, Passed high-temperature aging test (GB/T 12443)
Installation Fit	- Shaft: m6 (interference fit to compensate for thermal expansion) - Housing: H7 (clearance fit with thermal allowance)
Applications	- Metallurgy (hot rolling mills, annealing furnaces) - Chemical industry (distillation columns, reactors) - Food processing (drying tunnels, baking ovens)
Custom Options	- Anti-coking coatings (for 400°C+ oil vapour) - Ceramic ball upgrades (Si3N4, friction ↓25% at high temp) - Electrically insulated designs (for induction heating equipment)