TBM Main Bearing Grease

Normet’s TBM main bearing greases are engineered to protect the most sensitive and costly component of a tunnel boring machine—the main bearing. Products like TamGrease BS1 (excluder grease) and TamGrease BL11/BL12 (EP2 lubricating greases) offer excellent adhesion, cohesion, and lubrication properties. These greases prevent the ingress of soil, water, and dust through the main bearing seals, ensuring long-term sealing and smooth operation under high pressure and harsh conditions. They are compatible with EPB, slurry, and hard rock TBMs and are partly based on renewable raw materials.