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Product Specifications

Application Suitability

Struggling with Angular Contact Ball Bearing Reliability? The 7311/7312 Series Delivers Consistent Performance

When production lines halt due to bearing failure, every minute counts. Many buyers face the frustration of mismatched dimensions between replacement bearings and original equipment, or premature wear caused by substandard materials. Sourcing from multiple suppliers for different brands only adds complexity to your procurement process.

Engineered for Dependable Operation in Demanding Environments

Our Angular Contact Ball Bearing addresses these challenges with ISO 9001-certified manufacturing processes and a comprehensive inventory of international brand-compatible models. The 7311 and 7312 series, constructed from high-grade bearing steel, excel in automobile transmissions and rolling mill applications where radial loads and precision alignment are critical. With stock availability across major specifications, we streamline your procurement cycle.

Optimal Performance in High-Load, Precision-Required Applications

This single-row, unseparated bearing is specifically designed to handle radial loads in high-speed rotating systems. Operating within standard industrial temperature ranges, it maintains dimensional stability in metallurgical and mining equipment where dust and variable loads are common. The 80*140*44.4 mm specification provides a balance of load capacity and compact design, making it suitable for confined installation spaces in automotive drivetrains.

Key Engineering Features That Impact Service Life

The bearing steel construction ensures surface hardness that resists wear under continuous operation, while the precision rating options (from P0 to P2) allow selection based on application tolerance requirements. The ability to use either grease or oil lubrication provides flexibility across operating conditions—grease for maintenance intervals, oil for high-temperature environments. Single-row design optimizes radial load distribution, while the unseparated structure simplifies installation and reduces alignment errors during assembly.

Why Proper Bearing Selection Lowers Total Cost of Ownership

Choosing the right angular contact ball bearing directly affects equipment uptime and maintenance expenses. A bearing with inadequate precision rating can cause vibration in rolling mill applications, leading to product quality issues and increased energy consumption. Inferior materials may result in early fatigue failure, requiring costly emergency replacements and production downtime. Our bearings, with their严格的原材料检验 and成品 testing, deliver predictable service life that reduces long-term maintenance costs compared to lower-quality alternatives.

Quality You Can Rely On

Packaging & Shipping

• Standard packaging: Carton and pallet
• Ready for immediate dispatch from stock
• Flexible shipping options: Express courier, air freight, or sea transport
• Low minimum order quantity available for trial or small-batch requirements

Get Your Angular Contact Ball Bearing Quote Today

Whether you need the 7311, 7312, or another bearing model, provide your required specifications and quantity, and we’ll deliver competitive pricing and availability. Our team can assist with cross-referencing part numbers from major brands to ensure compatibility with your equipment.

Frequently Asked Questions