China High Quality Self Aligning Ball Bearing 1205 1205K 1305 1308K

Product Specifications

Application Suitability

Struggling with Bearing Reliability in Hydraulic Systems? Meet PHS4 Self-Aligning Ball Bearing

Many maintenance teams face recurring issues with bearing failures in hydraulic cylinders—either due to misalignment causing premature wear or the constant need for lubrication in hard-to-reach locations. Sourcing the right replacement can be equally frustrating when dealing with multiple brands and inconsistent quality standards.

Engineered for Low-Maintenance Performance in Critical Applications

The PHS4 self-aligning ball bearing addresses these challenges with its self-lubricating design, eliminating the need for frequent grease applications even in sealed hydraulic environments. As a professional bearing supplier with ISO 9001 certified quality processes, we ensure this bearing meets precise dimensional standards (4*31*7mm) for direct interchangeability with major international specifications, supporting quick replacements in construction machinery and automation equipment.

Optimal Performance in Oscillating Load Environments

This radial spherical plain bearing excels in applications involving moderate radial loads and angular misalignment up to 3 degrees. Its whole outer ring construction provides stability in dynamic systems like automobile shock absorbers and forging machine linkages, where consistent performance under cyclic loading is critical. The M4*0.7 thread size allows secure integration into threaded rod assemblies common in hydraulic cylinder end connections.

Key Engineering Features That Ensure Longevity

Manufactured from high-grade bearing steel, the PHS4 delivers a dynamic load capacity of 2480N and static load capacity of 4680N, making it suitable for both intermittent and continuous operation. The self-lubricating sliding contact reduces friction coefficients by 30% compared to non-lubricated alternatives, directly translating to extended service intervals. With a surface hardness of HRC 58-62, the bearing resists indentation and wear in abrasive environments typical of construction and water conservancy machinery.

Why Choosing the Right Bearing Reduces Total Operating Costs

Selecting a precision-engineered bearing like the PHS4 minimizes unplanned downtime—a single hydraulic cylinder failure can cost thousands in lost production. Unlike generic bearings with inconsistent tolerances, our ISO 9001 compliant manufacturing ensures dimensional accuracy within ±0.02mm, preventing installation issues and misalignment-related stress. The 0.012kg lightweight design also reduces inertial forces in high-speed automation equipment, lowering energy consumption over time.

Quality You Can Rely On

Packaging & Shipping

• Standard packaging in cardboard boxes with anti-corrosion wrapping
• Stock items available for same-day dispatch
• Flexible shipping options including express courier, air freight, and sea freight
• Low minimum order quantity—supports both trial purchases and bulk orders

Get Your PHS4 Bearing Quote Today

Whether you need a single replacement or bulk quantities for production, we can provide competitive pricing based on your specific requirements. Simply share the bearing model, quantity, and delivery location, and our technical team will confirm availability and lead time within 24 hours.

Frequently Asked Questions