21310-21314CAK W33 Self-Aligning Roller Bearing

Product Specifications

Application Suitability

Need Reliable 21310-21314CAK W33 Self-Aligning Roller Bearings? Avoid These Common Issues

Procuring the right self-aligning roller bearing often means navigating mismatched dimensions between suppliers or dealing with premature failure due to substandard materials. When equipment downtime costs thousands per hour, choosing a bearing that meets exact specifications isn’t just a preference—it’s a necessity.

Engineered for Heavy-Duty Performance in Demanding Environments

The 21310-21314CAK W33 self-aligning roller bearing addresses these challenges through precision manufacturing and versatile design. Produced under ISO 9001-certified processes, this bearing accommodates misalignment up to 2-3 degrees, making it ideal for applications with shaft deflection such as hydraulic cylinder linkages and mining conveyor systems. Our extensive inventory includes both this model and its equivalents across international brands, ensuring you get the right part without multiple supplier delays.

Optimal Performance in High-Load, Misalignment-Prone Applications

This self-aligning roller bearing excels in heavy radial load environments (up to typical dynamic load ratings for this series) while handling moderate axial loads in both directions. Its W33 lubrication groove and oil hole design simplifies maintenance in hard-to-reach locations like steel mill roll necks or wind turbine gearboxes. Operating temperatures range from -30°C to 120°C, suitable for both indoor industrial settings and outdoor construction machinery.

Key Engineering Features That Impact Reliability

The CAK design incorporates a machined brass cage that maintains roller spacing under shock loads, reducing friction and extending service life compared to pressed steel alternatives. The self-aligning capability minimizes edge loading caused by shaft misalignment, a common issue in conveyor systems that leads to premature bearing wear. Precision-ground raceways ensure consistent load distribution, while the W33 lubrication system allows for relubrication without disassembly—critical for equipment with long maintenance intervals like mining crushers.

Why Proper Bearing Selection Lowers Total Cost of Ownership

Choosing the correct self-aligning roller bearing directly affects operational costs. A bearing with insufficient load capacity or poor misalignment tolerance may fail within months, causing unplanned downtime and replacement expenses. This model follows ISO 15:1998 dimensional standards, ensuring interchangeability with major international brands—a key advantage when replacing bearings in multi-supplier equipment. By matching the bearing’s dynamic load rating to your application’s peak loads, you avoid the hidden costs of premature failure and unnecessary over-specification.

Quality Assurance You Can Verify

Packaging & Shipping

• Industrial-grade cardboard boxes with moisture-resistant wrapping
• Same-day dispatch for in-stock items
• Express courier (DHL, FedEx) for urgent orders; sea/air freight for bulk shipments
• No minimum order quantity—supports both prototype development and full production runs

Get Your 21310-21314CAK W33 Bearing Quote Today

Whether you need this specific self-aligning roller bearing or a cross-reference to another brand, provide your required quantity and delivery location, and we’ll confirm stock availability and pricing within 24 hours. Our technical team can also assist with dimension verification to ensure compatibility with your equipment.

Frequently Asked Questions