Putzmeister
Lip seal ring for Putzmeister equipment
This NBR lip seal ring is designed for use in Putzmeister hydraulic systems and fluid handling equipment. It creates a barrier between components to prevent fluid leakage and exclude external contaminants.
Specifications
- Part number
- 435747
- Brand
- Putzmeister
The lip seal ring 435747 acts as a mechanical barrier within Putzmeister machinery. It is installed between a rotating shaft and a housing to retain lubricants while preventing the ingress of dust, dirt, and moisture. By maintaining a tight seal, this component protects internal bearings and supports the operational integrity of hydraulic and transmission systems found in concrete pumps and distribution booms.
This component is manufactured from NBR, or Nitrile Butadiene Rubber, which provides resistance to mineral oils, greases, and fuels. The design facilitates consistent contact with the mating surface to accommodate minor shaft movements. It is suitable for various applications within the Putzmeister equipment range, including hydraulic pumps, swing motors, gearboxes, and cylinders where fluid containment is necessary for system pressure and safety.
Lip seals serve as the primary defense against fluid loss in heavy machinery. When a seal maintains its structural integrity, it prevents the pressure drops and contamination that lead to premature wear of mechanical parts. Regular inspection and replacement of these seals help manage the maintenance of hydraulic systems, ensuring that equipment remains operational and protected from the ingress of environmental debris.

