21315-21319CAK W33 Self-Aligning Roller Bearing

Product Specifications

Application Suitability

Need Reliable Self-Aligning Roller Bearings? Here’s What Prevents Downtime

Selecting the right 21315-21319CAK W33 self-aligning roller bearing can mean the difference between smooth operation and unexpected equipment failure. Many buyers struggle with mismatched dimensions causing installation issues, or low-quality bearings that wear prematurely under heavy loads. Sourcing from multiple suppliers to compare brands and lead times only adds complexity to the process.

Engineered for Consistent Performance in Demanding Conditions

This self-aligning roller bearing addresses common industry challenges through ISO 9001-certified manufacturing processes and strict quality control. With interchangeable dimensions following international standards, it fits seamlessly into existing equipment setups across工程机械, industrial automation, and material handling systems. Our extensive inventory ensures quick availability, eliminating long lead times often associated with specialized bearing models.

Optimal Performance in Misalignment-Prone Applications

Designed to accommodate angular misalignment up to 2-3 degrees, this bearing excels in applications where shaft deflection or housing inaccuracies are common. It reliably handles radial loads up to its dynamic load rating while maintaining stable operation in temperatures ranging from -30°C to 120°C. The W33 designation indicates a lubrication groove and three oil holes in the outer ring, facilitating efficient maintenance in hard-to-reach installations.

Key Engineering Features That Impact Service Life

The 21315-21319CAK W33’s performance stems from critical design elements: precision rating options from P0 to P2 allow selection based on application accuracy requirements, with tighter tolerances (P4/P2) ideal for high-speed machinery. Vibration class options (Z1V1 to Z3V3) ensure smooth operation in noise-sensitive environments. The carbon steel construction undergoes heat treatment to achieve optimal hardness, balancing wear resistance with toughness to prevent brinelling under shock loads. These specifications directly translate to longer bearing life and reduced maintenance intervals.

Why Proper Bearing Selection Lowers Total Operating Costs

Choosing the correct self-aligning roller bearing minimizes hidden expenses associated with equipment downtime. A bearing with inadequate precision (e.g., P0 in a high-speed application) may develop excessive clearance prematurely, leading to vibration, noise, and eventual failure. Similarly, using a bearing without proper lubrication features (like the W33 groove) in inaccessible locations increases maintenance labor costs. By matching the bearing’s specifications—including precision class, vibration rating, and lubrication design—to your application requirements, you reduce the risk of unplanned shutdowns and extend equipment service intervals.

Quality Assurance You Can Verify

Packaging & Shipping

• Standard packaging: Carton boxes with palletized shipment for bulk orders
• Stock availability: Ready for immediate dispatch from inventory
• Logistics options: Courier delivery for small orders, air or sea freight for larger quantities
• Order flexibility: Low minimum order quantity supported, with volume pricing available for bulk purchases

Get Your 21315-21319CAK W33 Bearing Quote Today

Whether you need a single replacement bearing or a bulk order for production, provide your required quantity, delivery location, and any specific brand preferences. Our team will confirm stock availability and provide competitive pricing within 24 hours. Early order confirmation ensures priority handling and faster delivery.

Frequently Asked Questions