For thirty years now, PXL SEALS has been a major player in the manufacturing of seals for manufacturers of large bearings and slewing rings.

The company works in various sectors including hydroelectricity, wind energy, tidal power, oil and gas/offshore, naval equipment, public works and forestry equipment, defense, and various sectors of industry in which sealing is extremely important.

How does PXL SEALS meet the needs of manufacturers of large bearings, from their manufacturing up to on-site installation and maintenance?

Seals that comply with multiple constraints

The seals of large bearings and slewing rings have unique features. These strategic components must meet significant constraints, particularly:

• Very large diameter seals (greater than 3 meters)


• Vibrations


• Strength over time / durability


• Eccentricity / clearance of parts


• Orientation or continuous movement depending on the situation

The particular operating conditions of certain types of equipment, such as the presence of fluid in contact, speed, service life and temperature, may make it necessary to use specific materials.



PXL SEALS has the necessary know-how in elastomer chemistry to offer solutions adapted to its customers’ needs.

- The importance of materials

The choice of the materials for seals for large bearings and slewing rings is crucial to guarantee optimal performance. PXL SEALS offers a range of materials adapted to the various operating conditions, ranging from standard elastomers to specific materials developed in-house or with specialized partners.

This approach ensures maximal compatibility with the requirements of each application.

The manufacturing of seals for large bearings

1) The range of seals offered by PXL SEALS

 

In order to meet its customers’ specific needs, PXL SEALS offers a diversified range of entirely molded unitized seals, of large and very large diameters and high precision.



These dynamic seals for rotating or oscillating movement are available in various sizes and of several grades of elastomers.

 

- V-Ring seals

The family of V-Ring seals is broad, with many profiles. These seals are used to provide protection against dust and fluid splashing or to retain grease, without pressure:



- Function in contact with continuously rotating tracks.

- Offer a wide range of possible diameters.

- Can be made of various grades of materials depending on the operating conditions.

- PEROBAT seals

Another major product line is PEROBAT seals. These rotary shaft seals are designed to function on tracks in continuous rotating movement:

- Cover a very wide range of diameters.

- Made from different materials to adapt to specific requirements.

- Available in several versions, including single lip, reinforced double lip, and a JUMBO version for slewing rings or large bearings.

PEROBAT JUMBO seals

PEROBAT JUMBO seals for slewing rings or large bearings are designed to function on tracks in slow rotating or oscillating movement and must allow for recovery from eccentricity or section variations, often substantial, linked to the movement of parts with respect to each other.



These seals are designed to function at low pressure, or even in the absence of pressure.



Discover the PXL seal product lines for large bearings

2) Custom-made seals

PXL SEALS has a design department which capitalizes on more than 30 years of technical experience to meet the specific sealing needs of its customers.



This design department uses calculation and control methods such as the finite element method, often accompanied by tests on a test rig, to design customized solutions which are perfectly adapted to the requirements of each application.



In high-stakes applications, PXL SEALS favors entirely molded solutions, with tolerances which are narrowed with respect to other means of transformation. This approach ensures maximum compatibility with the specific constraints of large bearings and slewing rings, thereby guaranteeing optimal performance and increased durability.

On-site work

PXL SEALS offers a complete on-site service to support its customers during the assembly or repair of seals for large bearings and slewing rings.



Our various methods of on-site bonding provide turnkey solutions with no dismantling of equipment, whether for simple assembly, bonding or molding.

Discover some examples of seals for large bearings and slewing rings manufactured and installed or replaced at our customers’ premises

Maintenance of existing seals:

• Replacement of boat propeller seals (PODs): Maintenance work to replace the seals that equip a boat POD after damage. On-site molding to guarantee optimal sealing.


• Sealing of the ball joint for the Monaco seawall: Design, delivery and replacement of the seal in situ. On-site molding to ensure maximum protection against water seepage.

The manufacturing quality of the seals is guaranteed by the MD WAY on-site vulcanizing process®, guaranteeing standards of quality and finishing identical to those obtained during the initial molding.

Delivery and installation of new seals:

• Delivery of entirely molded seals to protect the bearings of a bottling plant.


• Manufacturing of entirely molded seals for the bearings of forestry machinery, equipment for construction and public works or tanks.


• Work on wind generator nacelles: Delivery of seals for the main bearing of large wind turbines and for slewing rings for wind turbines.


• Tunnel boring machine crown maintenance: Delivery of seals for tunnel boring heads and their main bearing, thereby guaranteeing reliable sealing in extreme conditions.

Our qualified teams work with responsiveness and professionalism in order to ensure the efficient implementation of on-site sealing solutions, while minimizing the downtime and ensuring the sustainability of the facilities.

Contact us for further information about seals for large bearings.

Download the Large bearings and slewing rings flyer

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