21320 21321 21322 Spherical Roller Bearing High Capacity Low Friction

Product Specifications

Application Suitability

Struggling with Spherical Roller Bearing Performance? Models 21320, 21321, 21322 Deliver Reliability

Many maintenance managers face the same challenge: premature bearing failure due to misalignment or inadequate load capacity. When a spherical roller bearing fails in critical equipment like conveyor systems or mining machinery, it leads to costly downtime and replacement parts. Sourcing the right replacement across different brands can also be time-consuming, especially when dealing with both metric and imperial standards.

High Capacity Design for Heavy-Duty Applications

The 21320, 21321, and 21322 spherical roller bearings are engineered to address these pain points with their high load capacity and low friction design. As a professional bearing supplier with ISO 9001 certified production processes, we ensure these bearings meet strict dimensional and hardness standards. Our extensive inventory includes both our own brand and major international series, allowing us to quickly supply the exact model you need—whether for a wind turbine gearbox or a steel mill rolling stand.

Optimal Performance in Misalignment Conditions

These spherical roller bearings excel in applications where shaft misalignment is common, such as in vibrating screens or construction equipment articulation points. With their self-aligning capability, they can accommodate angular misalignment up to 2-3 degrees, reducing stress on adjacent components. The low friction design minimizes heat generation, making them suitable for continuous operation in temperatures ranging from -30°C to 120°C, typical in industrial environments.

Engineering Features That Enhance Service Life

Key design elements contribute to the durability of these spherical roller bearings. The precision-machined raceways and rollers ensure even load distribution, while the high-quality steel material provides excellent fatigue resistance. Surface hardness of HRC 58-62 on the raceways and rollers prevents premature wear, even under heavy radial loads. The optimized internal geometry reduces friction torque, which translates to lower energy consumption and longer bearing life in applications like conveyor drives and hydraulic presses.

Total Cost of Ownership: Why Quality Matters

Choosing a substandard spherical roller bearing may save on initial cost, but the hidden expenses add up quickly. Early failure can cause collateral damage to shafts and housings, increasing repair costs by 30-50%. Our bearings, manufactured with strict quality control—including raw material inspection and成品尺寸检测—reduce the risk of unexpected downtime. By following ISO 281 fatigue life standards, these bearings deliver predictable performance, helping you plan maintenance effectively rather than reacting to failures.

Quality You Can Rely On

Packaging & Shipping

• Neutral packaging in cardboard boxes or wooden pallets, suitable for international transport
• 现货库存 for immediate dispatch on confirmed orders
• Flexible shipping options including express courier, air freight, and sea freight
• Low minimum order quantity, supporting both small maintenance orders and large production runs

Get Your Spherical Roller Bearing Quote Today

Whether you need the 21320, 21321, 21322, or any other spherical roller bearing model, we can provide competitive pricing and quick delivery. Simply share the bearing model, dimensions (bore, outer diameter, width), and required quantity, and our technical team will confirm availability and specifications. The sooner you inquire, the sooner we can arrange shipment to keep your equipment running.

Frequently Asked Questions