SKF 23234CCK/C4W33 170x310x110 mm - Spherical Roller Bearing

Technical Specifications

The dimensions 170x310x110 mm correspond to the basic bearing designation 23234.

Dynamic load rating, static load rating, fatigue load limit, reference speed, limiting speed and mass have not been included because these values have not been independently confirmed for the exact C4 variant.

What Does SKF 23234CCK/C4W33 Mean?

The designation identifies the bearing series, internal construction, bore configuration, radial internal clearance and lubrication arrangement.

CC - Internal bearing design

The SKF CC design incorporates two rows of symmetrical barrel-shaped rollers, two pressed steel cages and a floating guide ring.

The inner ring has no integral guide flanges.

This construction allows the bearing to accommodate heavy radial loads, axial loads in both directions and angular misalignment.

K - Tapered bore

The K suffix identifies a tapered bore with a taper ratio of 1:12.

The bearing can be installed on a suitable tapered shaft seat or using an appropriately selected adapter or withdrawal sleeve.

Mounting requires controlled axial displacement and verification of radial internal clearance reduction.

C4 - Increased radial internal clearance

C4 specifies radial internal clearance greater than C3 and normal clearance (CN).

The clearance class is particularly important for tapered-bore spherical roller bearings because mounting reduces the initial radial internal clearance.

The suitability of C4 depends on shaft and housing fits, operating temperature, load conditions and the required operating clearance.

C4 does not represent one fixed clearance value for all bearing sizes.

W33 - Lubrication groove and holes

The W33 suffix identifies a circumferential groove and three lubrication holes in the outer ring.

These features allow lubricant to be supplied through a suitably designed bearing housing.

The designation does not specify a particular grease type or lubrication interval.

Construction and Operating Principle

SKF 23234CCK/C4W33 is a double-row spherical roller bearing incorporating two rows of barrel-shaped rolling elements.

The rollers operate between the raceways of the inner ring and a common spherical raceway in the outer ring.

The spherical outer ring raceway enables the inner ring and rolling element assembly to accommodate angular misalignment relative to the outer ring.

This self-aligning capability helps compensate for shaft deflection and alignment deviations between the shaft and housing.

The bearing is designed primarily for heavy radial loads while also accommodating axial loads in both directions.

Its open construction requires suitable lubrication and external protection against contamination.

The tapered bore allows controlled mounting on an appropriate tapered seat or sleeve. However, correct installation requires monitoring the reduction in radial internal clearance.

SKF 23234CCK/C4W33 vs Other Variants

Bearings within the 23234 series may share the same boundary dimensions while differing in bore configuration, internal clearance or internal design.

These designations describe different technical configurations and should not be treated as automatically interchangeable.

In particular, the difference between cylindrical and tapered bores affects mounting arrangements.

The difference between CN, C3 and C4 affects initial clearance, mounting conditions and operating clearance.

Identical boundary dimensions do not guarantee full technical interchangeability.

Alternative Designations and Reference Formats

The bearing may be identified using the following designation formats:

• SKF 23234CCK/C4W33

• 23234CCK/C4W33 SKF

• SKF 23234 CCK/C4W33

• 23234 CCK/C4W33 SKF

Spacing between the basic bearing number and suffixes may vary in catalogues or inventory systems.

The original designation should be preserved when ordering the bearing.

No verified OEM references or direct replacements from other manufacturers have been established for this exact configuration.

Bearing Selection and Interchangeability

Before selecting SKF 23234CCK/C4W33, verify the complete bearing designation and the requirements of the intended application.

Important selection criteria include:

• Boundary dimensions: 170x310x110 mm.

• Bore configuration: K, tapered bore with a 1:12 taper.

• Radial internal clearance: C4.

• Internal construction: SKF CC design.

• Lubrication arrangement: W33 groove and lubrication holes.

• Operating loads: Radial and axial loading conditions.

• Rotational speed: Compatibility with the bearing and lubrication system.

• Operating temperature: Thermal expansion and its effect on operating clearance.

• Mounting method: Suitable tapered shaft seat or sleeve.

• Misalignment: Expected shaft deflection and housing alignment conditions.

The C4 clearance variant should not be replaced with a CN or C3 bearing without evaluating the resulting operating clearance.

Likewise, a cylindrical-bore version is not a direct mounting replacement for a tapered-bore bearing, even when the outside diameter and width are identical.

Applications

Double-row spherical roller bearings of this construction are used in industrial assemblies requiring high radial load capacity and compensation for shaft or housing misalignment.

Typical applications for this bearing category include:

• Industrial rotating shaft assemblies.

• Heavy-duty mechanical drive systems.

• Bearing arrangements subject to shaft deflection.

• Industrial equipment requiring periodic relubrication.

• Mechanical assemblies operating under combined radial and axial loads.

These are general applications based on the characteristics of spherical roller bearings.

They do not represent verified OEM applications for the exact SKF 23234CCK/C4W33 designation.

Installation and Operating Recommendations

Mounting on a tapered seat

The tapered bore requires careful installation using a suitable tapered shaft seat or correctly selected mounting sleeve.

During mounting, the bearing moves axially along the tapered surface, producing radial expansion of the inner ring and reducing internal clearance.

The reduction in radial internal clearance must be controlled according to the SKF mounting procedure applicable to the bearing size and clearance class.

Excessive axial displacement may result in insufficient operating clearance.

Mounting forces

Mounting forces must be applied using appropriate bearing installation tools.

Avoid transmitting mounting forces through the rollers and raceways in a manner that could damage their working surfaces.

Lubrication

The W33 arrangement allows lubricant to be introduced through the outer ring.

Lubricant selection, quantity and relubrication intervals must be determined according to operating speed, temperature, load and environmental conditions.

The W33 suffix does not indicate that the bearing is sealed or permanently lubricated.

Storage

Store the bearing in its original packaging in a clean, dry environment.

Protect the bearing against moisture, contamination, impacts and corrosion.

Frequently Asked Questions - FAQ

What are the dimensions of SKF 23234CCK/C4W33?

The bearing has a bore diameter of 170 mm, an outside diameter of 310 mm and a width of 110 mm.

What does CC mean in SKF 23234CCK/C4W33?

CC identifies an SKF spherical roller bearing internal design with two pressed steel cages, a flangeless inner ring and a floating guide ring.

What does K mean?

K indicates a tapered bore with a taper ratio of 1:12. This affects the mounting method and requires control of internal clearance reduction during installation.

What does C4 mean?

C4 indicates radial internal clearance greater than C3. The correct clearance class depends on mounting fits, operating temperatures, loading and the required operating clearance.

What does W33 mean?

W33 indicates a circumferential lubrication groove and three lubrication holes in the outer ring, allowing lubricant to be supplied through a suitable housing arrangement.

Are SKF 23234CCK/C4W33 and SKF 23234 CCK/W33 interchangeable?

Not automatically. Although they share the same basic dimensions and construction, their radial internal clearance differs. The suitability of a replacement must be assessed for the specific operating conditions.

Can SKF 23234CCK/C4W33 compensate for misalignment?

Yes. Its spherical outer ring raceway provides self-aligning capability. The permissible misalignment depends on operating conditions, bearing geometry and the surrounding assembly.

Is SKF 23234CCK/C4W33 a sealed bearing?

No. It is an open spherical roller bearing. Appropriate lubrication and external sealing arrangements are required to protect the bearing from contamination.

SKF 23234CCK/C4W33 - Key Technical Information

SKF 23234CCK/C4W33 is a double-row spherical roller bearing measuring 170x310x110 mm. The CC design provides self-aligning capability, K specifies a 1:12 tapered bore, C4 indicates increased radial internal clearance, and W33 identifies lubrication features in the outer ring. The bearing accommodates heavy radial loads and axial loads in both directions.

SKF 23234CCK/C4W33 at simmering.pl

SKF spherical roller bearings and industrial bearing components are available through simmering.pl, a specialist supplier of rolling bearings, industrial seals and mechanical components.

We serve industrial companies, maintenance departments, workshops and technical purchasing teams.

Our warehouse and order processing facilities are located in Lublin, Poland. We provide worldwide shipping from stock in Poland.

Technical assistance is available for bearing identification and selection based on complete manufacturer designations and application requirements.