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Xingtai Botong Machinery Technology Co., Ltd.

As an industry leader in high-performance bearing solutions, Xingtai Botong Machinery Technology leverages cutting-edge manufacturing technologies to produce the next generation of industrial components.

🌐 Official Website: www.btzbearing.com
📞 Phone: 13315937577
✉️ Email: Zhang@btzbearing.com
🏭 Address: No. 3, Area B, Bearing Industry Mass Entrepreneurship Park, Beihuan Road, Linxi County, Xingtai City, Hebei Province

Product Overview

Our flagship product, the Composite Material UCSP205 Stainless Steel Pillow Block and ZrO2 Ceramic Bearing, redefines performance standards in extreme operating environments. Combining premium stainless steel housing with zirconia ceramic rolling elements, this solution delivers unprecedented resistance to corrosion, wear, and high-temperature degradation.

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Technical Specifications

The Composite Material UCSP205 Stainless Steel Pillow Block and ZrO2 Ceramic Bearing is engineered with precision for maximum performance. Below are the comprehensive technical specifications:

Parameter Specification Performance Advantage
Material Composition AISI 304 Stainless Steel + ZrO2 Ceramic Corrosion resistant, high strength-to-weight ratio
Load Capacity (Dynamic) 18.2 kN (Radial), 12.7 kN (Axial) Superior to all-steel equivalents
Speed Limit 12,800 rpm (Oil lubrication) 50% higher than standard bearings
Temperature Range -60°C to +450°C Exceptional thermal stability
Hardness (Ceramic Elements) 88-92 HRA Extreme wear resistance
Chemical Resistance Resists acids, alkalis, seawater Ideal for corrosive environments
Friction Coefficient 0.05-0.08 (dry), 0.005-0.01 (lubricated) Energy savings of 25-40%
Service Life (MTTF) 65,000 operating hours 3-5x industry average
ISO Certification ISO 9001:2015, ISO 14001:2015 Guaranteed quality standards

Performance Analysis

The following data visualization illustrates performance advantages of our Composite Material UCSP205 Stainless Steel Pillow Block and ZrO2 Ceramic Bearing:

Industrial Applications

The exceptional performance characteristics of our Composite Material UCSP205 Stainless Steel Pillow Block and ZrO2 Ceramic Bearing make it suitable for:

  • Food & Beverage Processing: Meets FDA requirements while resisting steam cleaning chemicals
  • Chemical Processing: Withstands acidic/alkaline environments that destroy conventional bearings
  • Marine & Offshore: Immune to saltwater corrosion with zero galvanic reactions
  • Pharmaceutical Manufacturing: Certified for cleanroom applications with no particle generation
  • High-Temperature Operations: Furnace roller bearings, heat treatment conveyors
  • Mining & Mineral Processing: Superior abrasion resistance in slurry applications
  • Water Treatment: Withstands continuous exposure to chlorinated water systems

Technical FAQ

What advantages do ZrO2 ceramic bearings offer over silicon nitride alternatives?

Zirconia (ZrO2) ceramic provides superior fracture toughness (9-10 MPa·m½ vs 6-7 MPa·m½ for Si3N4) while maintaining excellent corrosion resistance. The metastable tetragonal crystal structure creates a transformation toughening mechanism that absorbs impact energy without catastrophic failure.

What installation preload is recommended for UCSP205 stainless steel pillow blocks?

For optimal performance, apply an axial preload of 0.0015-0.002 times bearing bore diameter (for 205 size: 0.24-0.32mm). Use thermal mounting methods when press fits exceed 0.003D. Refer to ABMA Standard 9.2 for detailed mounting procedures on stainless steel housings.

What lubrication specifications apply to these hybrid bearings?

Use high-purity, food-grade synthetic lubricants meeting ISO 6743/4 standards. Grease NLGI grade 2 with base oil viscosity 75-95 cSt at 40°C is recommended. Lithium complex or polyurea thickeners provide optimal ceramic compatibility. Initial fill to 30-35% of internal free space.

How do coefficient of thermal expansion considerations affect installation?

Stainless steel (17 μm/m·K) and zirconia (10-11 μm/m·K) have different CTE values. For temperatures above 80°C, use shaft materials with CTE matching the housing (e.g., 316 stainless). Below 80°C, standard carbon steel shafts are acceptable per ISO 286 medium fit tolerances.

What electrical insulation properties does this solution provide?

ZrO2 ceramic balls create excellent electrical isolation with dielectric strength >20 kV/mm and volume resistivity >10¹⁴ Ω·cm. This prevents electrical arcing damage in variable frequency drives and electromechanical systems.

What precision standards do UCSP205 bearings achieve?

Produced to ABEC 7 precision class: bore tolerance of +0/-4μm, outside diameter +0/-7μm, radial runout

How do these bearings perform in cryogenic conditions?

Tested at -196°C (LN2 immersion) with zero brittleness concerns. Strength increases by 15-20% at cryogenic temperatures while maintaining excellent impact resistance. Low-temperature toughness exceeds requirements of ASTM D7362.

Industry Research & References

The performance of composite material bearings has been extensively researched in academic and industrial studies:

"Ceramic Hybrid Bearings in Corrosive Environments" - Journal of Tribology (2023)
https://doi.org/10.1115/1.4056565

"Advanced Materials for Bearing Applications" - ASM Handbook Volume 24
https://dl.asminternational.org/handbooks/book/70/chapter/1047580

"Performance Analysis of Zirconia Composite Bearings" - International Conference on Advanced Ceramics
https://ceramics.org/meetings/icacc

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