JFK bearings for bearing units
JFK bearing units
- Misalignment compensation
- Self-aligning ball and spherical roller bearings
- Spherical or cylindrical surface
- Relubricable
Bearing inserts are self-aligning bearings – either ball or spherical roller bearings – specifically designed for installation in dedicated bearing units. Their main feature is the spherical or cylindrical outer surface, which allows them to compensate for alignment errors between the shaft and housing, reducing wear and stress on the components. Relubricable versions are available with lubrication holes in the outer ring, allowing periodic relubrication through the housing grease fitting.
JFK Group offers ball and spherical roller bearing inserts in a wide range of sizes, covering the complete range of housings in its product portfolio. They are the ideal solution for replacing only the bearing inside an existing housing or for configuring a customized unit by combining a housing and bearing with the characteristics best suited to the application.
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Versions
How to choose the right bearing for bearing units
The choice mainly depends on the required load capacity and the type of housing used.
Ball bearing inserts
Self-aligning ball bearings · Moderate loads · RelubricableSelf-aligning ball bearings with a spherical outer surface for installation in dedicated housings. Suitable for moderate loads with compensation for static misalignment. Available in relubricatable versions with lubrication holes in the outer ring. To be combined with JFK ball bearing units.
Roller bearing inserts
Self-aligning roller bearings · Heavy loads · RelubricableSpherical roller bearings with a spherical outer surface for installation in dedicated housings. Suitable for heavy loads and demanding operating conditions, with dynamic misalignment compensation. Available in relubricable versions with lubrication holes in the outer ring. To be combined with JFK roller bearing units.
Performances
Design and performance features
Spherical outer surface for misalignment compensation and lubrication holes for periodic relubrication through the housing grease fitting.
Spherical outer surface
The spherical outer surface compensates for alignment errors between the shaft and housing, reducing wear and stress on the components. Roller bearing inserts accommodate more significant misalignment than ball bearing inserts.
Ball bearing inserts for moderate loads · Roller bearing inserts for heavy loads
Ball bearing inserts are suitable for moderate loads, while roller bearing inserts are designed for heavy loads and more demanding operating conditions. The choice depends on the application and the bearing unit used.
Relubricable through lubrication holes in the outer ring
Available with lubrication holes in the outer ring that connect to the housing grease fitting, allowing periodic relubrication without removing the bearing.
With JFK bearing units for ball and roller bearing inserts
Designed to be paired with the corresponding JFK bearing units. Dimensions comply with industry standards to ensure interchangeability with compatible bearing units from other manufacturers.
Replacement or custom configuration
Ideal for replacing only the bearing in an existing housing or for configuring a customized bearing unit by selecting the bearing best suited to the application.
Mounting
Installation of bearing inserts
Bearing inserts are mounted in the housing bore, with the spherical outer surface positioned in the spherical bore of the housing. Locking is achieved using set screws on the inner ring or a locking ring, depending on the housing configuration. The lubrication holes in the outer ring must be aligned with the housing grease fitting.
Mounting methods
- Insertion into the housingInsert the bearing into the spherical bore of the housing, ensuring that the spherical outer surface is correctly positioned. The bearing self-aligns automatically to compensate for any misalignment.
- Securing to the shaftSecure the inner ring to the shaft using set screws or a locking ring. Before final tightening, ensure that the lubrication holes in the outer ring are aligned with the housing grease fitting.
Technical data
- Outer surface
- Spherical for misalignment compensation
- Relubrication
- Through holes in the outer ring aligned with the housing grease fitting
- Available versions
- Ball · Roller
Applications
Applications
Components and application support for every industrial environment.
Industrial automation
Replacement of bearings in existing bearing units on conveyors, pumps, and material handling systems. The availability of ball and roller versions covers all load requirements without the need to replace the bearing unit.
Agriculture
Overhaul and maintenance of agricultural machinery with existing bearing units. Roller bearing inserts are suitable for applications involving the higher loads typical of heavy-duty agricultural machinery.
Transmissions and axles
Custom configuration of bearing units for drive systems with specific load requirements. Choosing the most suitable bearing—ball or roller—allows performance to be optimized without changing the bearing unit.
Construction Equipment
Maintenance and overhaul of earthmoving machinery with existing bearing units subject to heavy loads. Roller bearings provide the required load capacity for the most demanding applications.
Metal Fabrication / Machining Industry
Solutions for machine tools, machining centres, equipment and precision machining.
Poultry Industry
Components for belts, chains and actuators exposed to moisture, frequent washing and corrosive agents.
Renewable Energy
Bearings and motion systems for wind power, solar installations and long-lasting energy technologies.Technical documents
Contacts
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