22328-22336 Spherical Roller Bearing High Capacity Low Friction W33

Product Specifications

Application Suitability

Struggling with Bearing Reliability in Heavy-Duty Applications? The SI20 Series Spherical Roller Bearing Delivers

Many maintenance teams face recurring issues with bearing failure in hydraulic cylinders and construction equipment—either due to misalignment, inadequate load capacity, or difficulty finding exact replacements. When a bearing fails prematurely, it leads to costly downtime and secondary equipment damage. Sourcing the right spherical plain bearing that balances load capacity, precision, and compatibility with existing systems often requires navigating fragmented supplier networks.

Engineered for Demanding Work Environments

The SI20C, SI20ES, and SI20ES-2RS spherical roller bearings address these challenges through robust design and material selection. Constructed from high-grade bearing steel, these units support radial loads in applications like engineering hydraulic cylinders and forging machines, where durability under heavy stress is non-negotiable. With ISO 9001-certified production processes and rich stock availability, we ensure you get the right bearing when you need it—whether as a direct replacement or a custom solution.

Optimal Performance in Pivoting and Swinging Mechanisms

This radial spherical plain bearing excels in mechanisms requiring angular misalignment compensation, such as construction machinery booms and automation equipment joints. The whole outer ring design enhances structural integrity, while the 20mm x 54mm x 16mm dimensions fit standard installations. With vibration grades from Z1V1 to Z3V3, it maintains stability even in high-oscillation environments, reducing noise and extending equipment life.

Key Engineering Features That Impact Reliability

The non self-lubricating design allows flexibility in lubrication choice—grease or oil—to match specific operating conditions, though it requires regular maintenance in hard-to-reach areas. Precision ratings from P0 to P2 ensure dimensional accuracy, critical for interchangeability with existing systems. The 5mm thickness balances weight and load-bearing capacity, making it suitable for both light and medium-duty applications. Surface hardness, a result of controlled heat treatment, resists wear in abrasive environments common to construction and mining equipment.

Why Choosing the Right Bearing Lowers Total Cost

Selecting a bearing with mismatched load capacity or precision can lead to early failure, increasing maintenance costs and unplanned downtime. The SI20 series, with its high grease technology and strict quality control, minimizes these risks. By adhering to international dimensional standards, it ensures compatibility with major equipment brands, eliminating the need for costly design modifications. Over time, this reduces total cost of ownership by lowering replacement frequency and improving equipment uptime.

Quality You Can Rely On

Packaging & Shipping

• Packaged in cartons with pallet reinforcement for bulk orders
• Same-day dispatch for in-stock items
• Flexible shipping via express, road, train, air, or sea
• Low minimum order quantity, supporting both small repairs and large-scale projects

Get Your SI20 Series Bearing Quote Today

Whether you need the SI20C, SI20ES, SI20ES-2RS, or a different bearing model, provide your required specifications, quantity, and delivery location. Our technical team can help verify compatibility with your equipment, and our multi-brand sourcing network ensures we meet your brand or certification requirements. The sooner you confirm your order, the sooner we can arrange delivery to keep your operations running smoothly.

Frequently Asked Questions