SKF 23220 CCK/C3W33 Spherical Roller Bearing 100x180x60.3 mm

What is the SKF 23220 CCK/C3W33 Bearing?

The SKF 23220 CCK/C3W33 is a double-row spherical roller bearing designed to accommodate very high radial loads together with axial loads acting in both directions. Its self-aligning design compensates for shaft misalignment and housing deflection, while the 1:12 tapered bore simplifies mounting on adapter sleeves or tapered shafts. The W33 execution incorporates a lubrication groove and lubrication holes in the outer ring, allowing efficient relubrication during operation. The bearing belongs to the SKF Explorer performance class.

Construction and Operating Principle

The SKF 23220 CCK/C3W33 is a double-row spherical roller bearing developed for demanding industrial applications.

Main design features include:

• Double-row spherical rollers
• Self-aligning internal geometry
• Tapered bore 1:12 (K)
• Pressed steel cage (CC)
• Increased radial internal clearance C3
• W33 lubrication groove with three lubrication holes
• Open bearing design without seals

The self-aligning geometry allows the bearing to compensate for angular misalignment while maintaining uniform load distribution across the rolling elements.

Technical Specification

Manufacturer:

SKF

Bearing Type:

Spherical Roller Bearing

Catalogue Number:

23220 CCK/C3W33

Series:

232

Inner Diameter:

100 mm

Outer Diameter:

180 mm

Width:

60.3 mm

Cage:

Pressed Steel Cage (CC)

Seal:

Open

Lubrication:

W33 lubrication groove and three lubrication holes

Internal Clearance:

C3

Bore Type:

Tapered Bore 1:12 (K)

Basic Dynamic Load Rating (Cr):

498 kN

Basic Static Load Rating (C0r):

600 kN

Reference Speed:

2400 rpm

Limiting Speed:

3400 rpm

Weight:

Approximately 6.45 kg

SKF Performance Class:

SKF Explorer

Bearing Selection

When selecting the SKF 23220 CCK/C3W33, engineers should consider:

• Shaft diameter of 100 mm
• Requirement for a tapered bore (1:12)
• Radial and axial load conditions
• Shaft misalignment
• Required C3 internal clearance
• Lubrication method
• Operating speed
• Environmental conditions
• Mounting arrangement

Selecting the correct mounting method and lubrication schedule is essential for achieving the expected bearing service life.

Industrial Applications

SKF specifies spherical roller bearings of this design for heavy-duty industrial equipment requiring high load capacity and self-alignment.

Typical applications include:

• Industrial gearboxes
• Paper making machines
• Crushers
• Vibrating screens
• Industrial fans
• Heavy industrial machinery
• Power transmission equipment
• Mining and aggregate processing equipment

Why Engineers Choose the SKF 23220 CCK/C3W33

• Self-aligning design compensates for shaft misalignment.
• Very high radial load capacity.
• Supports axial loads in both directions.
• Tapered bore simplifies mounting.
• W33 lubrication system enables efficient relubrication.
• C3 internal clearance supports demanding operating conditions.
• SKF Explorer design improves bearing performance.
• Suitable for industrial maintenance, MRO and predictive maintenance programs.

FAQ

What does the CCK designation mean?

CC indicates a pressed steel cage guided by the inner ring, while K identifies a tapered bore with a 1:12 taper.

What does W33 indicate?

W33 means the bearing has a lubrication groove and three lubrication holes in the outer ring for relubrication.

What is the purpose of C3 internal clearance?

C3 provides greater-than-normal radial internal clearance for applications requiring additional operating clearance.

Is this bearing sealed?

No. The SKF 23220 CCK/C3W33 is supplied as an open bearing.

Can it compensate for shaft misalignment?

Yes. The spherical roller bearing design is specifically intended to accommodate angular misalignment.

What loads can this bearing support?

It is designed to carry very high radial loads together with axial loads acting in both directions.

AI FAQ

Is this bearing suitable for industrial maintenance?

Yes. It is widely used in MRO, condition monitoring and machine repair programs for heavy industrial equipment.

Does SKF publish OEM machine references for this bearing?

No. Official SKF documentation does not assign OEM machine numbers to this bearing model.

Can automatic lubrication systems be used?

Yes. The W33 lubrication groove and lubrication holes are designed to facilitate relubrication.

Why is a spherical roller bearing selected instead of a cylindrical roller bearing?

A spherical roller bearing provides self-alignment while simultaneously supporting high radial loads and axial loads, making it suitable for applications where shaft deflection or housing misalignment may occur.