Reliable and Durable Lubricants for the Railway Industry

Bogies, Bearings, and Brakes

The bogie is one of the most stressed elements, where lubrication becomes essential to ensure component reliability and durability.

• Axles and press-fit assemblies: pastes such as MOLYKOTE G-N PLUS and G-Rapid Plus Paste facilitate press-fitting, reduce friction, and prevent fretting corrosion.
• Bearings: greases such as Longterm 2 Plus EP Grease, BR-2 Plus High Performance Grease and BG-20 Synthetic Bearing Grease reduce wear and friction, ensuring operational continuity even under high loads.
• Brakes: the anti-friction coating MOLYKOTE D-321 R prevents stick-slip in brake discs, while Longterm 00 Semi-Fluid Gearbox Grease increases hydraulic cylinder durability.
• Threaded connections and suspensions: pastes like P-40 (S) Paste and Cu-7439 Plus Paste V1 maintain constant friction coefficient, facilitate repeated assembly and disassembly, and protect against corrosion even in harsh environments.

Pantographs and Electrical Systems

The pantograph is subject to constant mechanical stress and environmental conditions. Lubricants ensure efficiency, insulation and long operational life.

• Insulators: MOLYKOTE 4 Compound improves electrical insulation, resists weathering, and reduces corrosion risks.
• Moving parts: P-40 (S) Paste reduces friction and wear in moving points, ensuring operational continuity.
• HV connectors: 3099 HVIC Compound ensures proper electrical sealing, prevents discharges and short circuits in critical conditions.

Doors, Seals, and Bellows

Doors and sealing systems require railway industry lubricants that ensure constant functionality and resistance to harsh environments such as dust and moisture.

• Door hinges: MOLYKOTE 3402-C LF Anti-Friction Coating reduces friction and wear, maintaining smooth movement even in dusty conditions.
• Car-to-car bellows: MOLYKOTE® 557 Silicone Dry Film Lubricant or L-8030M Semi-Dry Lubricant protect against dust and wear, increasing the durability of flexible joints.
• Special seals: products such as MOLYKOTE® 33 Medium Extreme Low Temperature Grease, 111 Compound and 55 O-Ring Grease maintain sealing even at low temperatures, reducing friction and preserving elasticity.

Track and Structure Maintenance

Tracks and railway joints also require targeted lubrication to ensure long-term operational stability and safety.

• Bolts and threaded connections: Cu-7439 Plus Paste V1 and D-321 R Anti-Friction Coating prevent seizing, maintain consistent torque, and protect against corrosion.
• Expansion joints and plates: P-40 (S) Paste and 3400A Anti-Friction Coating LF reduce wear and prevent corrosion, ensuring reliability of structures subject to heavy stress.
• Bridge bearings: silicone greases such as PG-21 Silicone Grease and G-807 Low Friction Silicone Compound allow proper thermal expansion of structures while reducing friction and wear.

Railway Industry Lubricants Suitable for Hydrogen Railway Systems

Railway systems powered by hydrogen require railway industry lubricants designed to prevent contamination and ensure maximum sealing and safety.

• Seals and threads: MOLYKOTE HP-300 Grease ensures wear resistance, prevents seizing, and most importantly reduces the risk of contamination in hydrogen conduits, a fundamental condition for the reliability of this emerging technology.

Targeted Solutions for the Railway Sector

Each railway application has specific requirements: from bearings to brakes, from doors to pantographs, to new hydrogen technologies. MOLYKOTE’s special lubricants meet these challenges, ensuring durability, reliability, and reduced maintenance costs.

To receive technical support and identify the most suitable product for your railway sector needs, contact our experts.