Spherical Plain Bearing GAC170s-GAC200s Self-lubricating for Construction Machinery

Product Specifications

Application Industries

Eliminate Downtime with GAC Series Self-lubricating Spherical Plain Bearings for Construction Machinery

Construction machinery operators know the frustration of unexpected downtime—especially when it stems from bearing failures in critical components like hydraulic cylinders or pivot joints. Frequent lubrication requirements, premature wear under heavy loads, and mismatched bearings causing equipment instability cost time and money on job sites. When your excavator or forging machine stops working, every minute counts.

Self-lubricating Design Cuts Maintenance Costs for Heavy-Duty Applications

Our Spherical Plain Bearing GAC Series addresses these challenges head-on. The self-lubricating feature eliminates the need for regular grease application, reducing maintenance intervals and labor costs—critical advantages for construction sites where accessibility is limited. Made from high-grade bearing steel with a steel-on-steel sliding contact, these bearings deliver high precision and long life even under the radial loads common in engineering hydraulic cylinders and construction machinery. With ISO9001 and ISO14001 certifications backing our manufacturing process, you get consistent quality that meets global industry standards.

Engineered for the Toughest Construction Environments

Spherical plain bearings in construction machinery face unique demands: heavy radial loads, oscillating movements, and exposure to dust, debris, and variable temperatures. The GAC170s and GAC200s models excel in these conditions, featuring a whole outer ring design that enhances structural integrity and load-bearing capacity. Whether installed in excavator booms, loader arms, or forging machine pivot points, these bearings maintain performance in dynamic applications where reliability directly impacts project timelines.

Key Technical Features Driving Performance

The GAC Series' 120*180*38 mm specification balances size and strength, making it suitable for medium to heavy-duty equipment. The self-lubricating mechanism ensures continuous operation without lubricant replenishment, a critical feature in hard-to-reach areas of construction machinery. High precision manufacturing minimizes clearance variation, reducing vibration and noise during operation—an important consideration for operator comfort and equipment longevity. The combination of bearing steel material and optimized sliding contact design delivers the low friction and wear resistance needed to handle the repetitive stresses of hydraulic cylinder actuation and machinery articulation.

Why Genuine Bearings Matter for Total Cost of Ownership

Choosing substandard spherical plain bearings may save upfront costs, but the hidden expenses add up quickly. Counterfeit bearings often fail prematurely under heavy loads, leading to equipment breakdowns, costly repairs, and project delays. In contrast, our GAC Series bearings come with a 12-month global warranty, covering manufacturing defects and ensuring replacement or refund if issues arise. The high precision and long life of genuine bearings reduce the total cost of ownership by minimizing downtime, maintenance, and replacement frequency—essential factors for construction companies managing tight project schedules and budgets.

Our Commitment to Reliable Bearing Solutions

Packaging & Shipping

• Neutral packing with carton pallet for secure transportation
• Sample lead time: 3–5 days for standard items
• Bulk delivery: 5–15 days after order confirmation
• Multiple shipping options: T/T, credit card, and Alibaba trade保障 available
• 1pc MOQ supported for emergency maintenance needs

Get Your GAC Series Bearing Today

Don’t let bearing issues derail your construction projects. Whether you need a single GAC170s for emergency repair or bulk GAC200s for production, we have the inventory and expertise to meet your needs. Send us your bearing model, application details, and quantity requirements, and our team will provide a quote within 24 hours. Fast delivery means minimal downtime—so you can get back to work sooner.

Frequently Asked Questions