22224EJW33 TIMKEN 120x215x58 mm Spherical Roller Bearing

22224EJW33 TIMKEN 120x215x58 mm is a double-row self-aligning spherical roller bearing with a cylindrical bore, EJ steel cage and W33 lubrication feature. Its internal geometry is designed to accommodate high radial loads, axial loads in both directions and a certain degree of shaft-to-housing misalignment.

Technical data - TIMKEN 22224EJW33

What does 22224EJW33 mean?

The complete designation:

22224EJW33

identifies a specific TIMKEN spherical roller bearing execution.

The principal elements of the designation are:

• 22224 - basic spherical roller bearing designation
• EJ - TIMKEN steel cage design
• W33 - lubrication feature
• no K suffix - cylindrical bore
• TIMKEN - manufacturer

The complete designation should be retained when identifying and ordering the bearing.

Dimensions alone are not sufficient to establish complete technical interchangeability.

Dimensions of TIMKEN 22224EJW33

The principal dimensions are:

120x215x58 mm

where:

• d = 120 mm - bore diameter
• D = 215 mm - outside diameter
• B = 58 mm - bearing width

TIMKEN also specifies installation-related dimensions including:

• maximum fillet radius = 2 mm
• shaft backing diameter = 143 mm
• housing backing diameter = 196 mm

These values should be considered when checking the shaft, housing and adjacent machine components.

Double-row spherical roller bearing

22224EJW33 is a double-row spherical roller bearing.

Two rows of barrel-shaped rollers operate against a common spherical raceway in the outer ring.

This geometry enables the bearing to:

• accommodate high radial loads
• accommodate axial loads in both directions
• operate under combined radial and axial loading
• compensate for a certain degree of misalignment
• accommodate certain shaft deflections
• operate in demanding industrial bearing arrangements

These characteristics make spherical roller bearings particularly useful in heavy-duty machinery.

Self-aligning design

The spherical outer-ring raceway allows the inner-ring and roller assembly to align relative to the outer ring.

This helps compensate for certain levels of:

• shaft-to-housing misalignment
• shaft deflection
• mounting inaccuracies
• structural deflection under operating load

The permissible amount of misalignment depends on the actual bearing arrangement, load and operating conditions.

Self-aligning capability should not be treated as a substitute for correct machine alignment.

Cylindrical bore

TIMKEN 22224EJW33 has a cylindrical bore with a diameter of:

120 mm

The absence of the letter K is technically important.

The following versions should be distinguished:

22224EJW33

• cylindrical bore

22224KEJW33

• tapered bore

The two executions should not automatically be treated as interchangeable because their mounting requirements differ.

What does EJ mean?

EJ identifies a TIMKEN spherical roller bearing design with a steel cage.

TIMKEN classifies 22224EJW33 within its spherical roller bearing steel cage product family.

For this bearing:

Cage type: EJ

Cage material: steel

The cage maintains correct roller spacing and contributes to roller guidance during operation.

Cage design is therefore an important part of the complete bearing specification.

What does W33 mean?

W33 identifies a lubrication-related feature incorporated into the bearing design.

It supports lubricant supply and distribution within the bearing and is particularly relevant in industrial applications requiring periodic relubrication.

The W33 designation should therefore remain part of the complete product identification:

22224EJW33

Lubricant type, quantity and relubrication interval should be selected according to actual operating conditions and manufacturer recommendations.

Radial and axial load capability

Spherical roller bearings are primarily designed for high radial loads.

Their internal geometry also enables them to accommodate axial loads in both directions.

This makes 22224EJW33 suitable for bearing arrangements exposed to:

• high radial loads
• combined radial and axial loads
• reversing axial forces
• variable loading
• shaft deflection
• permissible misalignment

Actual bearing performance depends on the complete machine and bearing arrangement.

Load ratings of TIMKEN 22224EJW33

TIMKEN specifies:

Dynamic radial load rating C1: 647 kN

Static radial load rating C0: 772 kN

These are catalogue engineering values used in bearing selection and life calculations.

They should not be interpreted as universal maximum permissible machine loads.

Correct bearing selection requires consideration of actual loading, speed, lubrication, temperature, fits, contamination and required service life.

Calculation factors

TIMKEN specifies the following calculation factors:

• e = 0.25
• Y0 = 2.64
• Y = 2.70 when Fa/Fr <= e
• Y = 4.02 when Fa/Fr > e
• Cg = 0.0778

These factors are used in engineering calculations according to the manufacturer's methodology.

For accurate bearing life calculations, actual radial and axial loads and the complete operating conditions must be considered.

Speed data

TIMKEN specifies:

Thermal Reference Speed - oil: 3200 rpm

Thermal Reference Speed - grease: 2700 rpm

These are manufacturer reference values.

They should not automatically be interpreted as maximum permissible continuous operating speeds for every application.

Actual operating speed capability depends on factors including:

• bearing load
• operating temperature
• lubricant
• lubrication method
• lubricant quantity
• internal clearance
• shaft and housing fits
• heat dissipation
• environmental conditions

22224EJW33 vs 22224KEJW33

The primary difference is the bore design.

22224EJW33

• cylindrical bore
• bore diameter 120 mm

22224KEJW33

• tapered bore
• K suffix

The K suffix is therefore technically significant.

Before substituting one version for another, the shaft design, mounting method and machine requirements must be verified.

22224EJW33 vs 22224EJW33C3

The designation:

22224EJW33C3

identifies a version with increased C3 internal clearance.

The designation:

22224EJW33

does not contain the C3 suffix.

The two executions should therefore not automatically be treated as identical.

The required internal clearance depends on factors including:

• shaft fit
• housing fit
• operating temperature
• rotational speed
• bearing load
• temperature differences between the rings

The machine manufacturer's specification should take priority when available.

22224EJW33 vs 22224EMW33

TIMKEN also offers:

22224EMW33

with the same principal dimensions of 120x215x58 mm.

However, EJ and EM identify different bearing executions.

The 22224EJW33 belongs to the TIMKEN steel cage family, while EM designs use a different cage construction.

Therefore, identical principal dimensions do not necessarily mean identical internal bearing design or application characteristics.

The complete designation should always be verified.

Internal clearance

Internal clearance is an important parameter when selecting a spherical roller bearing.

The effective operating clearance can change due to:

• interference fits
• shaft temperature
• housing temperature
• rotational speed
• operating load
• mounting conditions

A C3 or C4 version has a different internal clearance specification from a standard bearing without such a suffix.

Do not assume increased clearance unless it is explicitly stated in the complete bearing designation or verified technical documentation.

Alternative designations and search references

Natural designation and search variants include:

• TIMKEN 22224EJW33
• 22224EJW33 TIMKEN
• TIMKEN 22224 EJW33
• 22224 EJW33 TIMKEN
• 22224-EJW33
• 22224 EJ W33
• 22224EJ W33
• TIMKEN 22224 W33
• 22224 TIMKEN bearing
• TIMKEN 22224 bearing
• 22224 spherical roller bearing
• 22224EJW33 spherical roller bearing
• 22224 bearing 120x215x58
• TIMKEN bearing 120x215x58
• spherical roller bearing 120x215x58
• double row spherical roller bearing 120x215x58
• 22224 W33 spherical roller bearing

These are natural designation and search variants. They do not establish automatic interchangeability with bearings from other manufacturers.

How to select a replacement for 22224EJW33

Before selecting an equivalent bearing, verify:

• 120 mm bore diameter
• 215 mm outside diameter
• 58 mm width
• double-row spherical roller bearing construction
• cylindrical bore
• cage execution
• steel cage
• W33 lubrication feature
• required internal clearance
• dynamic load rating
• static load rating
• axial load requirements
• required operating speed
• shaft fit
• housing fit
• lubrication method
• operating temperature
• permissible misalignment
• machine manufacturer's requirements

Identical dimensions of 120x215x58 mm alone do not guarantee complete interchangeability.

Typical applications of spherical roller bearings

Double-row spherical roller bearings are widely used in demanding industrial bearing arrangements exposed to high loads and possible misalignment.

Typical application areas for this bearing category include:

• industrial gearboxes
• conveyor systems
• crushers
• vibrating screens
• industrial fans
• mining equipment
• steel industry machinery
• paper machinery
• material handling equipment
• heavy industrial machinery
• industrial shaft systems
• maintenance operations

These are typical applications of spherical roller bearings as a product category. They do not confirm that 22224EJW33 is specified for a particular machine or OEM application.

Installation of TIMKEN 22224EJW33

Before installation, inspect the shaft, housing and adjacent mounting surfaces.

Good installation practice includes:

• maintaining high cleanliness
• checking shaft fit
• checking housing fit
• using appropriate mounting equipment
• avoiding mounting forces transmitted through the rollers
• protecting rollers and raceways from damage
• applying the correct lubricant
• checking the required operating clearance
• verifying correct alignment
• considering the W33 relubrication arrangement

With a 120 mm cylindrical bore, the mounting method should be selected according to the required fit and design of the bearing arrangement.

Incorrect mounting can affect internal clearance, operating temperature and bearing service life.

FAQ - TIMKEN 22224EJW33

What are the dimensions of TIMKEN 22224EJW33?

The bearing has a 120 mm bore diameter, 215 mm outside diameter and 58 mm width. Its principal dimensions are 120x215x58 mm.

What type of bearing is 22224EJW33?

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

Does 22224EJW33 have a cylindrical bore?

Yes. 22224EJW33 has a cylindrical bore. The tapered-bore version carries an additional K suffix.

What does EJ mean?

EJ identifies a TIMKEN spherical roller bearing execution with a steel cage.

What does W33 mean?

W33 identifies a lubrication-related feature designed to support lubricant supply and distribution within the bearing.

What is the dynamic load rating of 22224EJW33?

TIMKEN specifies a dynamic radial load rating C1 of 647 kN.

What is the static load rating of 22224EJW33?

TIMKEN specifies a static radial load rating C0 of 772 kN.

What reference speeds does TIMKEN specify?

TIMKEN specifies a Thermal Reference Speed of 3200 rpm with oil and 2700 rpm with grease.

TIMKEN 22224EJW33 120x215x58 mm - key information

TIMKEN 22224EJW33 is a double-row self-aligning spherical roller bearing with dimensions of 120x215x58 mm, a cylindrical bore, EJ steel cage and W33 lubrication feature. TIMKEN specifies a dynamic radial load rating C1 of 647 kN, static radial load rating C0 of 772 kN and Thermal Reference Speeds of 3200 rpm with oil and 2700 rpm with grease.

Availability from simmering.pl

TIMKEN 22224EJW33 120x215x58 mm spherical roller bearing is available from simmering.pl for industrial customers, maintenance departments, machine manufacturers, technical services, distributors and B2B procurement.

simmering.pl supplies industrial bearings and technical sealing products from stock in Poland, with worldwide shipping available.