SKF 22206 E/C2 30x62x20 mm - Double-Row Spherical Roller Bearing

SKF 22206 E/C2 30x62x20 mm - Double-Row Spherical Roller Bearing

SKF 22206 E/C2 is a double-row spherical roller bearing manufactured by SKF, with dimensions of 30x62x20 mm. It belongs to the 222 series and features two rows of symmetrical barrel-shaped rollers operating against a common spherical outer ring raceway. The E suffix identifies SKF's optimized internal bearing design, while C2 specifies radial internal clearance smaller than Normal (CN). The bearing accommodates radial loads, axial loads in both directions and angular misalignment.

Technical Specifications - SKF 22206 E/C2

What Does SKF 22206 E/C2 Mean?

The designation 22206 E/C2 consists of the basic bearing number and additional identifiers specifying the internal design and clearance class.

222 - Identifies the dimensional series of a double-row spherical roller bearing.

06 - Bore code corresponding to a nominal bore diameter of 30 mm.

E - SKF optimized internal design for spherical roller bearings, incorporating improvements to the internal geometry and load-carrying characteristics.

C2 - Radial internal clearance smaller than Normal (CN).

The complete manufacturer designation is:

SKF 22206 E/C2

The C2 suffix is technically significant. SKF 22206 E/C2 should not automatically be replaced by a bearing with Normal or C3 internal clearance.

SKF 22206 E/C2 Dimensions

The principal dimensions are:

• Bore diameter d: 30 mm.

• Outside diameter D: 62 mm.

• Width B: 20 mm.

Bearing dimensions: 30x62x20 mm.

These dimensions correspond to the 22206 bearing size.

However, matching dimensions alone do not establish complete interchangeability.

When selecting a replacement, the C2 clearance class, E internal design, mounting arrangement and operating loads must also be considered.

Construction of SKF 22206 E/C2

SKF 22206 E/C2 is a double-row self-aligning spherical roller bearing.

Its principal construction includes:

• Inner ring with two raceways.

• Outer ring with a common spherical raceway.

• Two rows of barrel-shaped rollers.

• Cage and rolling element guidance arrangement.

The spherical geometry of the outer ring raceway provides the bearing with self-aligning capability.

This enables the bearing to accommodate certain angular misalignment between the shaft and housing, including misalignment resulting from shaft deflection.

However, self-aligning capability does not mean that the bearing can operate under unlimited misalignment.

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

SKF E Internal Design

The E suffix identifies an optimized SKF internal bearing design.

This execution incorporates specific design characteristics involving the geometry of the rollers, raceways and their interaction.

The E design is relevant to the bearing's load-carrying characteristics and operating performance.

Load ratings, limiting speeds and other catalogue parameters should not automatically be transferred from different 22206 variants unless they have been verified for the exact SKF 22206 E/C2 execution.

C2 Radial Internal Clearance

One of the most important characteristics of SKF 22206 E/C2 is its reduced radial internal clearance.

In SKF bearing nomenclature:

• C2 - Radial internal clearance smaller than Normal.

• CN - Normal radial internal clearance.

• C3 - Radial internal clearance greater than Normal.

• C4 - Radial internal clearance greater than C3.

Radial internal clearance influences rolling element contact conditions, load distribution, operating temperature and bearing behaviour after installation.

The operating clearance may differ from the initial unmounted clearance because of interference fits and temperature differences between bearing components.

Therefore, C2 must not be treated as a universal replacement for CN or C3.

Why Does C2 Clearance Require Special Attention?

A smaller initial internal clearance means that less clearance reduction can be tolerated during installation and operation compared with bearing versions having greater initial clearance.

An interference fit between the inner ring and shaft may reduce the bearing's radial internal clearance.

Temperature differences between the inner and outer rings can also influence operating clearance.

Incorrect selection may lead to excessive internal loading, increased friction and higher operating temperatures.

Before installing a C2 bearing, verify that this clearance class is appropriate for the specific bearing arrangement.

Radial and Axial Load Accommodation

SKF 22206 E/C2 is designed primarily to accommodate radial loads.

Its double-row spherical roller construction also enables it to accommodate axial loads acting in both directions.

The bearing can operate under combined radial and axial loading, provided that the applicable operating limits are respected.

Correct selection requires consideration of catalogue load ratings, rotational speed, lubrication, operating temperature and actual loading conditions.

Self-Alignment and Misalignment Compensation

SKF 22206 E/C2 has self-aligning capability.

The common spherical outer ring raceway allows angular movement of the inner ring and roller assembly relative to the outer ring.

This characteristic is useful in bearing arrangements subject to:

• Angular misalignment between the shaft and housing.

• Shaft deflection under load.

• Structural deformation affecting shaft alignment.

The permissible misalignment angle depends on operating loads, housing design and other application conditions.

The bearing should not be selected solely on the assumption that all shaft alignment errors can be accommodated.

SKF 22206 E/C2 vs Other Bearing Variants

SKF 22206 E/C2 vs SKF 22206 E

Both bearings have principal dimensions of 30x62x20 mm and the SKF E internal design.

The principal difference is radial internal clearance.

SKF 22206 E/C2 has radial internal clearance smaller than Normal.

SKF 22206 E, without an additional clearance suffix, normally identifies the standard Normal clearance execution.

Substitution requires verification of the operating clearance required by the application.

SKF 22206 E/C2 vs SKF 22206 E/C3

Both bearings have identical principal dimensions but different internal clearance classes.

22206 E/C2 - Radial internal clearance smaller than Normal.

22206 E/C3 - Radial internal clearance greater than Normal.

These versions must not automatically be considered interchangeable.

The correct clearance class depends on fits, temperature conditions and the required operating clearance.

SKF 22206 E/C2 vs SKF 22206 EK

The K suffix identifies a tapered bore.

SKF 22206 E/C2 has a cylindrical bore, while the EK execution has a tapered bore.

This difference affects the mounting method and shaft or sleeve arrangement.

The two executions should not be treated as directly interchangeable.

Alternative Designations and Search References

Natural identification variants include:

• SKF 22206 E/C2

• 22206 E/C2 SKF

• SKF 22206E/C2

• 22206E/C2 SKF

• SKF 22206 E C2

• SKF 22206E C2

• SKF 22206 E/C2 30x62x20

• 22206 E/C2 30x62x20 SKF

• SKF 22206 E/C2 spherical roller bearing

• SKF spherical roller bearing 30x62x20 C2

For technical documentation and purchasing, the complete manufacturer designation should be retained:

SKF 22206 E/C2

Bearing Selection and Interchangeability

Before purchasing SKF 22206 E/C2 or selecting a replacement, verify:

• Complete manufacturer designation.

• Dimensions 30x62x20 mm.

• Double-row spherical roller construction.

• E internal design.

• C2 radial internal clearance.

• Cylindrical bore.

• Dynamic load rating.

• Static load rating.

• Permissible rotational speed.

• Shaft and housing fits.

• Operating temperature.

• Lubrication requirements.

• Required angular misalignment capability.

Particular attention should be paid to retaining the specified C2 clearance class.

A bearing with identical dimensions but Normal or C3 clearance may behave differently after mounting and during operation.

Typical Applications of Spherical Roller Bearings

Double-row spherical roller bearings are used in arrangements requiring radial and axial load accommodation combined with the ability to compensate for angular misalignment.

Typical applications of this bearing design include:

• Industrial machinery shafts.

• Bearing arrangements subject to shaft deflection.

• Drive assemblies operating under combined loads.

• Bearing systems requiring self-alignment.

These are general applications associated with spherical roller bearing construction.

They do not confirm SKF 22206 E/C2 as an original equipment bearing for any specific machine or equipment model.

Mounting SKF 22206 E/C2

Before installation, clean the shaft, housing bore and bearing seating surfaces.

Check:

• Condition of mounting surfaces.

• Required shaft and housing fits.

• Alignment of bearing components.

• Internal clearance before mounting.

• Effect of interference fits on mounted clearance.

• Lubrication method.

During installation, mounting force should be applied directly to the ring being fitted with an interference fit.

Force must not be transmitted through the rollers and raceways.

For the C2 execution, particular care is required to avoid excessive reduction of operating internal clearance.

Lubrication and Storage

SKF 22206 E/C2 is an open bearing.

The lubricant type should be selected according to rotational speed, loading, temperature and bearing arrangement.

A specific factory lubricant should not be assumed without confirmation from the relevant product documentation.

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

Protect it against moisture, contamination, aggressive chemicals and mechanical damage.

The packaging should preferably be opened immediately before installation.

FAQ

What are the dimensions of SKF 22206 E/C2?

SKF 22206 E/C2 measures 30x62x20 mm. The bore diameter is 30 mm, the outside diameter is 62 mm and the width is 20 mm.

Is SKF 22206 E/C2 a spherical roller bearing?

Yes. It is a double-row self-aligning spherical roller bearing.

What does E mean in SKF 22206 E/C2?

E identifies SKF's optimized internal design used in this spherical roller bearing family.

What does C2 mean?

C2 specifies radial internal clearance smaller than Normal (CN).

Can SKF 22206 E/C2 be replaced by SKF 22206 E/C3?

Not automatically. C2 and C3 identify different radial internal clearance ranges, which can significantly affect bearing operation.

Can SKF 22206 E/C2 compensate for shaft misalignment?

Yes. Its spherical roller design enables it to accommodate certain angular misalignment and shaft deflection within the permissible operating limits.

Can SKF 22206 E/C2 accommodate axial loads?

Yes. The double-row spherical roller bearing construction enables axial loads to be accommodated in both directions.

Does SKF 22206 E/C2 have a tapered bore?

No. SKF 22206 E/C2 has a cylindrical bore. A tapered bore is identified by the additional K suffix.

SKF 22206 E/C2 - Key Information

SKF 22206 E/C2 is a double-row spherical roller bearing measuring 30x62x20 mm, featuring a cylindrical bore and self-aligning construction. The E suffix identifies SKF's optimized internal design, while C2 specifies radial internal clearance smaller than Normal. The bearing accommodates radial and bidirectional axial loads and compensates for permissible angular misalignment.

SKF 22206 E/C2 can be ordered from the specialist industrial bearing supplier simmering.pl. Stock in Poland, worldwide shipping and technical assistance with SKF bearing identification and selection.