SKF 22212 E 60x110x28 mm - Spherical Roller Bearing

Technical Specifications

The nominal boundary dimensions of SKF 22212 E are 60x110x28 mm.

The E suffix identifies the bearing's internal design and does not specify increased C3 radial internal clearance.

Bearing Dimensions and Mounting Data

These dimensions support the design and verification of the bearing arrangement.

The shaft and housing fits must be selected according to the operating load, temperature, and mounting requirements.

What Does SKF 22212 E Mean?

The designation identifies the bearing series, bore diameter, and SKF internal design.

22212 - Bearing series and dimensions

The basic designation 22212 identifies a double-row spherical roller bearing with nominal dimensions of 60x110x28 mm.

Bearings in the 222 series are designed to accommodate radial loads, axial loads in both directions, and angular misalignment between the shaft and housing.

E - Optimized SKF internal design

The E suffix identifies SKF's optimized spherical roller bearing internal design.

SKF 22212 E incorporates symmetrical barrel-shaped rollers and pressed steel cages.

The internal geometry is designed to support efficient load distribution and increased load-carrying capacity.

The E suffix does not specify a particular lubricant, enlarged radial internal clearance, or sealed construction.

SKF Explorer

SKF 22212 E belongs to the SKF Explorer performance class.

SKF Explorer refers to a manufacturer-defined bearing performance concept involving internal design, manufacturing processes, and bearing performance characteristics.

It is not a separate suffix in the designation 22212 E.

Normal radial internal clearance (CN)

SKF 22212 E has normal radial internal clearance (CN).

The E suffix must not be confused with the C3 clearance designation.

If increased radial internal clearance is required, an appropriate variant such as SKF 22212 E/C3 should be considered after verifying the application requirements.

Cylindrical bore

SKF 22212 E has a cylindrical bore with a nominal diameter of 60 mm.

It must not be confused with SKF 22212 EK, where the K suffix identifies a tapered bore with a 1:12 taper.

Construction and Operating Principle

SKF 22212 E consists of an inner ring with two raceways, an outer ring with a common spherical raceway, two rows of symmetrical barrel-shaped rollers, and pressed steel cages.

The spherical outer ring raceway allows the inner ring and roller assembly to align at a limited angle relative to the housing.

This self-aligning capability helps compensate for shaft deflection and angular misalignment between the shaft and housing.

The two rows of rollers accommodate radial loads and axial loads acting in both directions.

Unlike cylindrical roller bearings with limited misalignment capability, the spherical roller bearing design allows operation under specified angular deviations.

The permissible misalignment depends on the bearing arrangement, loading, and operating conditions.

SKF 22212 E is an open bearing without integrated seals or shields.

Load Ratings and Operating Performance

The basic dynamic load rating is used in bearing life calculations under dynamic loading conditions.

The basic static load rating is used to evaluate resistance to permanent deformation under static loading conditions.

The fatigue load limit is used in SKF bearing life calculations.

Reference speed and limiting speed are catalogue values rather than guaranteed operating speeds under all conditions.

Actual permissible operating speed depends on bearing load, lubrication, temperature, heat generation, and the complete bearing arrangement.

SKF Load Calculation Factors

These factors are used to calculate equivalent bearing loads when radial and axial forces act simultaneously.

The applicable factor depends on the relationship between axial and radial loads and the calculation method used.

Lubrication of SKF 22212 E

SKF 22212 E has an open construction and incorporates features that facilitate relubrication.

The outer ring includes lubrication provisions for supplying lubricant to the rolling contacts.

The lubrication groove width is 6 mm, and the lubrication hole diameter is 3 mm.

The bearing is not a sealed, lifetime-greased configuration.

The surrounding bearing arrangement must provide the appropriate lubrication system and protection against contamination.

The lubricant type, quantity, and relubrication interval must be selected according to rotational speed, bearing load, operating temperature, and environmental conditions.

SKF 22212 E vs Other Variants

Different versions of the SKF 22212 series have the same nominal boundary dimensions but may differ in bore configuration or radial internal clearance.

All listed variants have nominal dimensions of 60x110x28 mm.

However, their bore geometry or radial internal clearance differs.

SKF 22212 E and SKF 22212 EK are not directly interchangeable without verifying the shaft mounting arrangement.

Replacing a normal-clearance bearing with a C3 variant also requires an assessment of the resulting operating clearance.

Alternative Designations and Reference Formats

The following natural reference formats may be used to identify the bearing:

• SKF 22212 E

• 22212 E SKF

• SKF22212E

• SKF 22212E

• 22212E SKF

The manufacturer's original designation is SKF 22212 E.

These written variations do not represent separate OEM part numbers.

No unverified OEM references or cross-manufacturer equivalents have been assigned.

Bearing Selection and Interchangeability

Before purchasing SKF 22212 E, verify the complete manufacturer designation and the technical requirements of the bearing arrangement.

Important selection criteria include:

• Boundary dimensions: 60x110x28 mm.

• Bore configuration: Cylindrical, 60 mm.

• Internal design: SKF E, double-row, self-aligning.

• Radial internal clearance: Normal (CN).

• Cage: Pressed steel.

• Sealing: Open construction without integrated seals.

• Lubrication: Relubrication through the outer ring.

• Load requirements: Magnitude and direction of radial and axial forces.

• Operating speed: Compatibility with lubrication and temperature.

• Mounting fits: Appropriate shaft and housing tolerances.

• Operating conditions: Temperature, contamination, vibration, and alignment.

A bearing from another manufacturer with identical nominal dimensions is not necessarily fully interchangeable.

Internal design, load ratings, clearance, cage construction, speed capability, and mounting requirements must also be evaluated.

Applications of SKF 22212 E

Spherical roller bearings in the SKF 222 series are designed for rotating assemblies subjected to radial and axial loads where angular misalignment may occur.

Typical applications for this bearing category include industrial shaft support arrangements, mechanical power transmission systems, and rotating machinery subjected to shaft deflection.

The self-aligning construction accommodates angular deviations, while the two rows of rollers support combined loading.

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

They do not establish that the exact SKF 22212 E designation is approved for a particular machine, gearbox, motor, or OEM assembly.

Suitability must be confirmed against the equipment specifications and actual operating conditions.

Installation and Operating Recommendations

Preparation

Before installation, clean the shaft, housing, and bearing mounting surfaces.

Check the dimensions, fits, and condition of all mating components.

Mounting

When installing the bearing with an interference fit, apply the mounting force to the ring being fitted.

Do not transmit mounting forces through the rollers or raceways.

Use suitable mounting tools and follow SKF's recommended procedures for cylindrical-bore spherical roller bearings.

Radial internal clearance

Consider the reduction in radial internal clearance caused by interference fits.

The remaining operating clearance must be appropriate for the expected load, speed, and temperature conditions.

Lubrication

Provide the lubricant specified for the application.

Ensure adequate lubricant distribution and protection against contamination.

Operation and storage

During operation, monitor bearing temperature, vibration, and lubrication condition as appropriate.

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

Protect it against moisture, contamination, impacts, and mechanical damage.

Frequently Asked Questions - FAQ

What are the dimensions of SKF 22212 E?

SKF 22212 E has a bore diameter of 60 mm, an outside diameter of 110 mm, and a bearing width of 28 mm.

What does E mean in SKF 22212 E?

The E suffix identifies SKF's optimized internal spherical roller bearing design, developed for increased load-carrying capacity.

Does SKF 22212 E have a cylindrical or tapered bore?

SKF 22212 E has a cylindrical bore with a nominal diameter of 60 mm. The SKF 22212 EK variant has a tapered bore with a 1:12 taper.

What radial internal clearance does SKF 22212 E have?

The standard bearing has normal radial internal clearance (CN). SKF 22212 E/C3 has increased radial internal clearance.

Is SKF 22212 E self-aligning?

Yes. The spherical outer ring raceway allows the bearing to compensate for angular misalignment between the shaft and housing, within SKF's specified limits.

Is SKF 22212 E sealed?

No. It is an open spherical roller bearing without integrated seals. Appropriate lubrication and protection against contamination must be provided by the bearing arrangement.

What is the load rating of SKF 22212 E?

The basic dynamic load rating is 159 kN, the basic static load rating is 166 kN, and the fatigue load limit is 18.6 kN.

Can SKF 22212 E be replaced with SKF 22212 EK?

Not without checking the mounting arrangement. The E variant has a cylindrical bore, while the EK variant has a tapered bore. Identical nominal dimensions do not guarantee direct interchangeability.

SKF 22212 E - Key Technical Information

SKF 22212 E is a double-row self-aligning spherical roller bearing from the SKF Explorer range, measuring 60x110x28 mm. The E suffix identifies an optimized internal design. The bearing has a cylindrical bore, pressed steel cages, normal radial internal clearance, and an open construction with relubrication features. It accommodates radial and bidirectional axial loads while compensating for angular misalignment.

SKF 22212 E at simmering.pl

SKF spherical roller bearings and other 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.

Assistance with bearing identification and selection is available based on complete manufacturer designations and application requirements.