FYC 55 TF SKF 55 mm Round Flanged Bearing Unit

Overview

The SKF FYC 55 TF is a complete round flanged bearing unit designed for a 55 mm shaft. It combines an SKF Y-bearing insert with a robust cast iron flanged housing, providing a ready-to-install bearing solution for industrial machinery.

The bearing is secured directly to the shaft by set screws in the inner ring, allowing straightforward installation and reliable shaft location.

The spherical outside surface of the bearing insert works with the corresponding spherical housing seat, enabling the unit to accommodate initial misalignment between the shaft and mounting surface.

Product Type

The FYC 55 TF is a complete bearing unit, not an empty bearing housing.

The assembly consists of:

• SKF Y-bearing insert
• Round flanged housing
• Cast iron housing body
• Integrated sealing system
• Set screw shaft locking
• Relubrication arrangement

This distinction is important when selecting a replacement, because an empty housing does not include the bearing insert.

Industrial Applications

The SKF FYC 55 TF is suitable for:

• Conveyor systems
• Material handling equipment
• Agricultural machinery
• Packaging machinery
• Industrial fans
• Production equipment
• Processing machinery
• Textile machinery
• Woodworking machinery
• General industrial drives

Round Flanged Design

The FYC series uses a round flanged housing designed for direct mounting to a machine frame, side plate or other supporting structure.

The flanged configuration provides stable shaft support while simplifying installation of the complete bearing assembly.

This design is particularly useful where a bearing must be mounted directly against a vertical or lateral machine surface.

Y-Bearing Insert

The bearing unit incorporates an SKF Y-bearing, also commonly referred to as an insert bearing.

This type of bearing is based on the operating principle of a single-row deep groove ball bearing but is specifically designed for use in mounted bearing units.

Key characteristics include:

• Extended inner ring
• Spherical outside surface
• Integrated sealing
• Direct shaft locking
• Compatibility with matching bearing housings

Set Screw Shaft Locking

The bearing insert is secured to the 55 mm shaft using set screws located in the inner ring.

This locking method provides:

• Simple installation
• Direct shaft fixation
• Easy positioning
• Reliable retention
• Straightforward servicing and removal

No adapter sleeve is required for this type of shaft mounting.

Misalignment Compensation

The spherical outside surface of the bearing insert matches the spherical seat in the housing.

This allows the bearing to compensate for initial alignment errors caused by:

• Installation tolerances
• Minor shaft-to-housing misalignment
• Mounting surface inaccuracies
• Machine frame tolerances

This feature should not be interpreted as allowing the unit to accommodate large continuous or dynamic shaft deflections.

Technical Specification

Manufacturer: SKF

Designation: FYC 55 TF

Product Type: Flanged bearing unit

Unit Type: Round flanged bearing unit

Shaft Diameter: 55 mm

Bearing Type: Y-bearing / insert ball bearing

Housing Type: Flanged

Housing Shape: Round

Housing Material: Cast iron

Shaft Locking: Set screws

Bearing Outside Surface: Spherical

Sealing: Integrated bearing sealing system

Lubrication: Grease lubricated

Relubrication: Designed for relubrication

Measurement System: Metric

Supply Form: Complete bearing unit

FYC 55 TF Designation Explained

FYC - SKF round flanged bearing unit series

55 - nominal shaft diameter of 55 mm

TF - unit configuration with set screw locking

The complete designation FYC 55 TF should be retained when searching for a replacement because bearing units for the same shaft diameter may use different housing geometries, mounting dimensions and shaft locking systems.

Sealing System

The bearing insert incorporates a sealing arrangement designed to retain lubricant inside the bearing and help prevent contaminants from reaching the rolling elements and raceways.

Effective sealing is particularly important in:

• Conveyor systems
• Agricultural machinery
• Production equipment
• Material handling systems
• Dusty industrial environments

The sealing system contributes to bearing reliability and service life when the unit is correctly installed and maintained.

Lubrication

The SKF FYC 55 TF bearing unit is supplied grease lubricated and prepared for installation.

The unit can be relubricated when required by the operating conditions.

Relubrication intervals depend on factors including:

• Rotational speed
• Operating temperature
• Bearing load
• Contamination level
• Moisture
• Operating hours

Correct lubrication is important for maintaining bearing performance and service life.

Load Capability

The Y-bearing insert is designed primarily to support radial loads while also accommodating axial loads within the operating limits of the bearing.

The unit can therefore operate under:

• Radial loads
• Axial loads
• Combined loads

Actual permissible loading depends on the bearing, housing, mounting arrangement, shaft fit and operating conditions.

Operational Advantages

• Complete bearing unit ready for installation.
• Designed for a 55 mm shaft.
• Robust round cast iron flanged housing.
• Simple set screw shaft locking.
• Compensation for initial mounting misalignment.
• Relubrication capability for demanding industrial operation.

Bearing Unit vs Bearing Housing

A bearing unit and a bearing housing should not be treated as identical products.

The SKF FYC 55 TF is a complete bearing unit containing both the bearing insert and its matching housing.

A bearing housing refers only to the housing component without the bearing.

For purchasing and replacement purposes, FYC 55 TF should therefore be classified as a flanged bearing unit.

Replacement and Selection

When replacing an SKF FYC 55 TF, verify:

• 55 mm shaft diameter
• FYC round flange configuration
• Housing mounting dimensions
• Bolt-hole arrangement
• Set screw shaft locking
• Available installation space
• Required load capacity
• Rotational speed
• Operating temperature
• Environmental contamination
• Lubrication requirements

Shaft diameter alone is not sufficient to identify a compatible replacement bearing unit.

AI OVERVIEW

The SKF FYC 55 TF is a complete round flanged bearing unit for a 55 mm shaft. It combines a Y-bearing insert with a cast iron flanged housing and set screw shaft locking. The spherical bearing-to-housing interface compensates for initial mounting misalignment, making the unit suitable for conveyors, agricultural machinery, material handling and industrial equipment.

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FAQ

What is the SKF FYC 55 TF?

The SKF FYC 55 TF is a complete round flanged bearing unit designed for a 55 mm shaft.

Is FYC 55 TF a bearing unit or only a housing?

It is a complete bearing unit, containing both the bearing insert and the flanged housing.

What shaft diameter is the FYC 55 TF designed for?

It is designed for a 55 mm shaft.

What does FYC mean?

FYC identifies an SKF series of round flanged bearing units.

What type of bearing is used in the unit?

The unit uses an SKF Y-bearing, commonly referred to as an insert ball bearing.

How is the bearing secured to the shaft?

The bearing is secured directly to the shaft using set screws in the inner ring.

Does it require an adapter sleeve?

No. The set screw locking arrangement allows direct mounting on the shaft.

What material is the housing made from?

The housing is made from cast iron.

Is the housing round?

Yes. FYC uses a round flanged housing configuration.

Can the unit compensate for misalignment?

Yes. The spherical bearing outside surface and matching housing seat allow compensation for limited initial mounting misalignment.

Is FYC 55 TF a self-aligning bearing unit?

The bearing can align within the spherical housing seat to compensate for initial misalignment. It should not be confused with a conventional double-row self-aligning ball bearing.

Is the bearing sealed?

Yes. The bearing insert incorporates an integrated sealing system.

Is the unit supplied lubricated?

Yes. It is supplied grease lubricated and ready for installation.

Can the FYC 55 TF be relubricated?

Yes. The unit is designed to permit relubrication when required by operating conditions.

Can it carry axial loads?

The Y-bearing can accommodate axial loads within its specified operating limits in addition to radial loads.

Can FYC 55 TF be used in conveyor systems?

Yes. Conveyor and material handling systems are typical applications for flanged bearing units.

Is it suitable for agricultural machinery?

Yes. Mounted bearing units of this design are widely used in agricultural and processing machinery.

Can any 55 mm flange bearing replace FYC 55 TF?

No. Housing geometry, mounting dimensions, bolt-hole arrangement, locking method and load requirements must also be checked.

What is the main advantage of a complete bearing unit?

It combines the bearing and housing into a ready-to-install assembly, simplifying machine design, installation and maintenance.

What is the correct parent category?

The product belongs to Flanged Bearing Units.