Industry: Offshore Oil & Gas
Application: Subsea Bearings for Riser and Guide Systems
Client: Major Offshore Drilling Operator
Solution Partner: Lehigh Valley Plastics
Offshore platforms demand components that can survive corrosive seawater, high pressure, and heavy mechanical stress. Traditional metal bearings fall short—they corrode, wear quickly, and require frequent maintenance. Seeking a better solution, a global offshore drilling company partnered with Lehigh Valley Plastics to engineer a more reliable, cost-effective subsea bearing system.
The Challenge
Steel bearings used on risers and guide assemblies were failing due to:
- Corrosion: Constant saltwater exposure led to rapid material degradation.
- Friction & Wear: High-friction metal-to-metal contact accelerated wear and downtime.
- Maintenance Costs: Routine anti-corrosion treatments and part replacements increased operating costs by 30% annually.
- Excessive Weight: Steel bearings were heavy, making handling and installation time-consuming and dangerous.
The Engineered Solution: UHMW & Nylon Bearings
Lehigh Valley Plastics recommended replacing the metal bearings with custom-machined bearings made from UHMW-PE (Ultra-High Molecular Weight Polyethylene) and Nylon, both selected for their offshore performance characteristics:
- Corrosion Resistance: Plastics are inherently immune to seawater and chemical attack.
- Self-Lubricating Properties: UHMW and Nylon minimize friction and reduce energy losses—no grease required.
- Lightweight Construction: Easier to handle and reduces structural load on riser assemblies.
- High Load Capacity: Engineered for compressive loads in deepwater conditions.
- Custom Fit: Bearings were precision-machined to match existing hardware—no redesigns or retrofits needed.
Implementation & Testing
The new engineered plastic bearings were installed during a planned maintenance shutdown. Lehigh Valley Plastics completed rapid prototyping, custom fabrication, and testing in-house.
Validation Testing:
- Saltwater Immersion: Simulated 12-month exposure showed zero degradation.
- Load Testing: Bearings withstood >20,000 lbs of compressive force without deformation.
- Friction Analysis: Plastic bearings reduced operational friction by 40% over steel.
Results & Measurable Gains
- ✅ Corrosion-Free Operation: After 18 months in subsea use, bearings showed no corrosion or structural failure.
- ✅ 30% Maintenance Cost Reduction: Fewer part replacements and no lubrication needs cut operational expenses.
- ✅ 40% Longer Service Life: Plastic bearings outlasted metal alternatives and reduced downtime.
- ✅ 20% Faster Install Time: Lightweight bearings improved handling safety and maintenance speed.
- ✅ Enhanced Safety: No grease, fewer maintenance cycles, and lighter parts reduced risk for offshore crews.
Bottom Line: Engineered plastics like UHMW and Nylon provide a smarter, safer, and longer-lasting solution for subsea bearing applications. Lehigh Valley Plastics helped this offshore client increase reliability, cut maintenance costs, and boost operational safety.
Interested in a material upgrade for your subsea systems? Contact the experts at Lehigh Valley Plastics today.
Frequently Asked Questions
Why use UHMW and Nylon for subsea bearings?
Both UHMW-PE and Nylon are corrosion-resistant, lightweight, and self-lubricating. They withstand high loads, don’t rust, and reduce maintenance cycles in marine environments.
Do plastic bearings last as long as metal bearings?
Yes. In this case, UHMW and Nylon bearings lasted 40% longer than steel bearings, thanks to their lower friction and resistance to corrosion and wear.
Can engineered plastics handle high compressive loads?
Absolutely. UHMW and Nylon are engineered to handle significant compressive forces—making them ideal for subsea riser assemblies and offshore structural systems.
Do these materials require lubrication?
No. Both UHMW-PE and Nylon are self-lubricating, eliminating the need for external greasing—perfect for hard-to-reach or submerged applications.
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