SKF 22208 E 40x80x23 mm Spherical Roller Bearing

Technical Specification

The numerical ratings should be verified against the current SKF catalogue for the exact 22208 E designation before engineering calculations or final bearing selection.

Bearing Design and Construction

The SKF 22208 E is a double-row spherical roller bearing designed to accommodate combined loading and angular misalignment.

Its internal arrangement consists of two rows of symmetrical barrel-shaped rollers operating between the inner ring raceways and a common spherical raceway in the outer ring.

This construction allows the bearing to carry substantial radial loads while also accommodating axial forces acting in either direction.

SKF Explorer Design

SKF Explorer spherical roller bearings incorporate optimized internal geometry, manufacturing precision and bearing technology intended to improve performance under demanding operating conditions.

The E-type internal design is associated with increased load-carrying capability and optimized roller-to-raceway contact geometry.

The resulting bearing arrangement is designed to support high radial loading and reliable operation when correctly selected, mounted and lubricated.

Self-Aligning Capability

The spherical outer ring raceway enables the inner ring and roller assembly to accommodate angular displacement relative to the outer ring.

This characteristic helps compensate for shaft deflection and certain installation-related misalignment conditions.

The permissible misalignment angle depends on the bearing design, load conditions and surrounding components.

A universal permissible angle should not be assumed without consulting SKF technical data.

SKF 22208 E Designation Explained

222 – Spherical Roller Bearing Series

The 222 designation identifies a dimensional series of double-row spherical roller bearings.

08 – Bore Diameter Code

The bore code 08 corresponds to a nominal bore diameter of 40 mm.

E – Optimized Internal Design

The E suffix identifies an optimized SKF spherical roller bearing internal design intended to provide high load-carrying capacity.

Cylindrical Bore

The designation 22208 E identifies a cylindrical bore version.

A corresponding tapered bore variant is designated 22208 EK.

Normal Radial Internal Clearance

The absence of a C3 suffix indicates the standard normal radial internal clearance group for this configuration.

Load Ratings and Operating Performance

Basic Dynamic Load Rating

The basic dynamic load rating is used to calculate nominal bearing fatigue life under standardized reference conditions.

Actual bearing service life depends on load magnitude, lubrication conditions, contamination, operating temperature and installation accuracy.

Basic Static Load Rating

The basic static load rating relates to standardized permanent deformation criteria at the rolling contacts.

It should not be interpreted as an unrestricted maximum permissible operating load.

Reference and Limiting Speeds

The reference speed is a thermal reference value established under defined operating conditions.

The limiting speed relates to mechanical constraints associated with bearing design.

Actual permissible operating speed depends on load, lubrication, temperature, cooling and the bearing arrangement.

SKF 22208 E vs SKF 22208 EK

Although the external dimensions are identical, the bore configurations require different mounting arrangements.

The two versions should not be considered directly interchangeable without verifying the shaft design and installation method.

Bearing Selection and Mounting Requirements

Correct selection of SKF 22208 E requires evaluation of the actual mechanical and operating conditions.

Important considerations include:

• Radial and axial loading.

• Required bearing fatigue life.

• Shaft and housing fits.

• Geometrical accuracy of mounting surfaces.

• Shaft deflection and permissible misalignment.

• Operating speed and temperature.

• Lubricant type and supply method.

• Protection against external contamination.

Cylindrical Bore Mounting

The cylindrical bore requires a suitable shaft seat with the appropriate dimensional tolerance.

The selected fit must account for load direction, load magnitude, operating temperature and the rotational conditions of the bearing rings.

Housing Installation

The housing seat and axial locating arrangement must provide adequate support without introducing excessive ring deformation.

Incorrect mounting may adversely affect bearing internal clearance, load distribution and operating performance.

Lubrication

SKF 22208 E is an open bearing without integrated contact seals.

The bearing arrangement must therefore provide suitable lubrication and protection against contaminants.

Grease or oil lubrication may be used according to the operating requirements and SKF recommendations.

Industrial Applications

Double-row spherical roller bearings are commonly used in industrial machinery requiring high radial load capacity and the ability to accommodate shaft misalignment.

General application categories include:

• Industrial conveyor systems.

• Material handling equipment.

• Mechanical transmissions.

• Industrial production machinery.

• Heavy-duty rotating shafts.

• Equipment exposed to shaft deflection or mounting misalignment.

These are general applications of spherical roller bearing technology. They do not constitute manufacturer-confirmed approval of SKF 22208 E for every specific machine or operating environment.

Alternative Product Designation Formats

The following formats may appear in technical searches, ERP systems and industrial procurement records:

• SKF 22208 E

• 22208 E SKF

• SKF 22208E

• 22208 E 40x80x23 mm

• SKF Explorer 22208 E

• SKF 22208 E spherical roller bearing

The official manufacturer designation should be preserved as 22208 E.

Alternative formats are intended for product identification and search purposes only and do not establish interchangeability with other bearing variants.

FAQ – Frequently Asked Technical Questions

1. What are the dimensions of SKF 22208 E?

The bearing has a 40 mm bore diameter, 80 mm outside diameter and 23 mm width, expressed as 40x80x23 mm.

2. What type of bearing is SKF 22208 E?

It is a double-row spherical roller bearing designed to support radial loads, axial loads in both directions and angular misalignment.

3. What does the E suffix mean?

The E suffix identifies an optimized SKF internal bearing design associated with high load-carrying capacity.

4. Is SKF 22208 E self-aligning?

Yes. Its spherical outer ring raceway allows the bearing to accommodate angular misalignment between the shaft and housing within the manufacturer's specified limits.

5. What are the load ratings of SKF 22208 E?

The stated basic dynamic load rating is 98.5 kN, while the basic static load rating is 90 kN.

6. Is SKF 22208 E sealed?

No. It is an open bearing without integral seals. Suitable lubrication and contamination protection must be provided by the surrounding bearing arrangement.

7. What is the difference between SKF 22208 E and SKF 22208 EK?

SKF 22208 E has a cylindrical bore, while SKF 22208 EK features a tapered bore with a taper ratio of 1:12.

8. Does SKF 22208 E have C3 internal clearance?

No C3 suffix is present in the specified designation. The standard configuration uses normal radial internal clearance.

AI Quick Answer

SKF 22208 E 40x80x23 mm is a double-row SKF Explorer spherical roller bearing with a cylindrical bore and optimized E-type internal design. It accommodates radial and bidirectional axial loads while compensating for angular misalignment. The stated dynamic load rating is 98.5 kN and static load rating is 90 kN. It is an open bearing requiring appropriate lubrication.

B2B Industrial Supply – simmering.pl

SKF 22208 E 40x80x23 mm is offered through simmering.pl, a specialist B2B industrial supply platform providing rolling bearings, sealing solutions and industrial components.

The platform serves industrial enterprises, maintenance departments, engineering teams and professional technical procurement specialists.

Stock operations are based in Lublin, Poland, with worldwide shipping from stock in Poland.

Technical assistance is available for bearing identification, manufacturer designation verification and industrial bearing selection.