21311-21316CCK W33 Self-Aligning Roller Bearing

Product Specifications

Application Suitability

Need a Reliable 21311-21316CCK W33 Self-Aligning Roller Bearing? Here’s What Matters

Finding the right self-aligning roller bearing can be a challenge when dealing with equipment misalignment issues or trying to source specific models across multiple suppliers. Many procurement teams face delays from limited inventory, while maintenance managers worry about premature bearing failure due to poor material quality or incorrect lubrication design.

Built for Heavy-Duty Performance in Demanding Environments

The 21311-21316CCK W33 self-aligning roller bearing addresses these challenges with its robust design and compatibility with international standards. As a supplier with extensive experience across industrial sectors, we maintain ready stock of this bearing type, ensuring quick delivery for critical maintenance needs. Its self-aligning capability makes it ideal for applications like conveyor systems, mining equipment, and industrial gearboxes where shaft misalignment is common.

Optimal Performance in Misalignment-Prone Applications

This self-aligning roller bearing excels in operating conditions with moderate to heavy radial loads and occasional axial loads. Its spherical outer ring allows for angular misalignment up to 2-3 degrees, reducing stress on shafts and housings in equipment like vibrating screens and paper mill machinery. The CCK design (crowned inner ring with cylindrical bore) enhances load distribution, while the W33 lubrication groove and hole facilitate relubrication, extending service life in dusty or high-temperature environments.

Key Engineering Features for Reliability

The 21311-21316CCK W33 bearing’s performance stems from critical design elements. The roller profile is optimized to minimize edge stress, distributing radial loads evenly across the raceway. Its precision-machined components ensure consistent dimensional accuracy, allowing for straightforward interchangeability with bearings from major manufacturers. The W33 lubrication system provides a maintenance path for补充 grease, essential in applications where complete disassembly for relubrication is impractical. Surface hardness of the raceways and rollers, typically 58-62 HRC, ensures resistance to wear and fatigue under continuous operation.

Why Proper Bearing Selection Lowers Total Cost

Choosing the right self-aligning roller bearing directly impacts operational costs. A correctly specified bearing reduces unplanned downtime caused by premature failures, while its misalignment tolerance lowers installation and alignment costs. Inferior bearings often show early signs of overheating or vibration, leading to secondary damage to gears and shafts. By following ISO 281 load-life calculations and matching bearing capacity to application demands, this bearing delivers predictable performance, minimizing the total cost of ownership over time.

Quality You Can Rely On

Packaging & Shipping

• Neutral industrial packaging with protective wrapping
• Ready stock available for immediate dispatch
• Flexible shipping options including express courier, air freight, and sea freight
• Low minimum order quantity to support both small maintenance needs and large production runs

Request a Quote for 21311-21316CCK W33 Self-Aligning Roller Bearing

To get pricing and availability for the 21311-21316CCK W33 bearing, please provide your required quantity and delivery location. We also welcome inquiries for other self-aligning roller bearing models or alternative brands—our technical team can assist with cross-referencing and compatibility checks to ensure you get the right bearing for your application.

Frequently Asked Questions