Self-Aligning Roller Bearing 21320CA 21321CA 21322CA 21324CA W33 for Industrial Machinery

Product Specifications

Application Industries

Minimize Downtime with Reliable Self-Aligning Roller Bearings 21320CA-21324CA W33

Industrial machinery operators know the cost of unexpected downtime—hours lost to bearing failures, missed production deadlines, and emergency repair costs. When standard bearings can’t handle misalignment or heavy radial loads, equipment performance suffers. Sourcing precision bearings with flexible order options often means compromising on lead times or quality.

Engineered for Heavy Loads and Misalignment in Industrial Machinery

Our Self-Aligning Roller Bearings, including models 21320CA, 21321CA W33, 21322CA, and 21324CA W33, are designed to solve these challenges. With double rows of rollers and a spherical outer ring, they accommodate shaft misalignment up to 2 degrees, reducing stress on machinery components. Ideal for industrial gearboxes, conveyors, and heavy-duty pumps, these bearings deliver consistent performance even under variable loads.

Optimal Performance in Demanding Industrial Conditions

Self-Aligning Roller Bearings excel in applications requiring high radial load capacity and resistance to shock. Whether in mining equipment, steel mills, or agricultural machinery, their robust bearing steel construction ensures durability in dusty, high-vibration environments. The W33 designation indicates a lubrication groove and three oil holes in the outer ring, enabling efficient maintenance and extended service life in continuous-operation systems.

Technical Features That Maximize Machinery Uptime

Precision rating options from P0 to P2 allow customization for specific accuracy needs—P5 and P4 grades suit high-speed machinery where minimal runout is critical. Clearance classes C0 (normal), C3 (increased), and C4 (greater) accommodate thermal expansion in applications like rolling mills or generators. The unseparated design simplifies installation, while the double-row roller configuration distributes loads evenly, reducing wear and extending bearing life by up to 30% compared to single-row alternatives.

Why Authentic Bearings Matter for Total Cost of Ownership

Counterfeit bearings may offer lower upfront costs, but they often fail prematurely due to substandard materials and poor manufacturing. A single bearing failure in a critical machine can cost thousands in downtime and repairs. Our bearings meet ISO 9001 quality standards, with each unit tested for dimensional accuracy and load capacity. Choosing genuine Self-Aligning Roller Bearings reduces the risk of unexpected failures, lowering long-term maintenance costs and protecting your production schedule.

Your Trusted Partner for Bearing Solutions Since 2005

Packaging & Shipping

• Carton and pallet packaging for secure transportation
• Sample lead time: 3–5 days for standard items
• Bulk delivery: 5–15 days after order confirmation
• Global shipping via T/T, credit card, or Alibaba trade terms
• 1pc MOQ available for emergency repairs and small-batch orders

Get Your Self-Aligning Roller Bearings Delivered Fast

Don’t let bearing issues slow down your operations. Whether you need 21320CA, 21321CA W33, 21322CA, or 21324CA W33 bearings, we have the inventory and expertise to fulfill your order quickly. Send us your requirements today and minimize downtime with reliable, precision-engineered bearings.

Frequently Asked Questions