TIMKEN 23134 EMW33C3 170x280x88 mm - Spherical Roller Bearing

TIMKEN 23134 EMW33C3 170x280x88 mm - Spherical Roller Bearing

TIMKEN 23134 EMW33C3 is a double-row spherical roller bearing with a 170 mm bore diameter, 280 mm outside diameter and 88 mm width. It features a cylindrical bore, a machined brass EM cage, a W33 lubrication groove and holes, and C3 radial internal clearance. Its self-aligning design accommodates specified shaft misalignment while supporting heavy radial loads and axial loads in both directions.

Product Characteristics

The TIMKEN 23134 EMW33C3 belongs to the 231 series of double-row spherical roller bearings.

It features two rows of symmetrical barrel-shaped rollers operating against a common spherical outer ring raceway.

This construction provides self-aligning capability and makes the bearing suitable for demanding industrial applications involving substantial loads.

Key features:

• Double-row spherical roller bearing.

• Nominal dimensions of 170x280x88 mm.

• Cylindrical bore with a diameter of 170 mm.

• Machined brass EM cage.

• W33 lubrication groove and holes in the outer ring.

• C3 radial internal clearance, greater than normal.

• Open construction without integrated seals.

• Ability to accommodate radial and axial loads.

• Self-aligning design for specified shaft misalignment.

Technical Specifications

The dimensional, load-rating, weight and reference-speed values are based on TIMKEN catalogue specifications.

Reference speeds are not unconditional maximum permissible operating speeds. Actual operating limits depend on load, lubrication, temperature, mounting arrangement and other application conditions.

What Does 23134 EMW33C3 Mean?

The full designation identifies the bearing series, dimensions and construction.

23134 - Bearing Series and Size

23134 identifies a double-row spherical roller bearing belonging to the 231 dimensional series.

The bearing has:

• Bore diameter: 170 mm.

• Outside diameter: 280 mm.

• Width: 88 mm.

E - Optimized Internal Design

The E designation within the EM construction refers to TIMKEN's optimized internal bearing design.

This design is associated with roller geometry and load distribution within the bearing.

M - Machined Brass Cage

The EM designation identifies a machined brass cage construction.

In this bearing design, the cage is guided by the rolling elements.

Machined brass cages provide mechanical strength and are commonly used in spherical roller bearings designed for demanding operating conditions.

W33 - Lubrication Groove and Holes

W33 indicates a lubrication groove and lubrication holes in the outer ring.

This arrangement allows lubricant to be supplied through an appropriately designed bearing housing lubrication system.

C3 - Greater-Than-Normal Radial Internal Clearance

C3 indicates radial internal clearance greater than normal.

It does not indicate the bearing's precision class.

The correct clearance must be selected according to shaft and housing fits, operating temperature, loading conditions and the intended application.

Double-Row Spherical Roller Bearing Construction

The TIMKEN 23134 EMW33C3 contains two rows of barrel-shaped rolling elements.

Its common spherical outer ring raceway allows the inner ring and roller assembly to operate at a limited angle relative to the outer ring.

This self-aligning capability helps compensate for certain shaft deflections and alignment errors.

However, self-alignment does not mean the bearing can operate with unlimited angular misalignment.

The permissible misalignment depends on operating conditions and manufacturer requirements.

EM Machined Brass Cage

The TIMKEN 23134 EMW33C3 features a machined brass cage.

The cage maintains appropriate spacing between the rolling elements and guides them during operation.

TIMKEN's EM construction is designed with consideration for cage strength, internal friction and stable roller guidance.

Important characteristics include:

• High mechanical strength.

• Stable roller positioning.

• Suitability for substantial mechanical loads.

• Construction intended for demanding industrial applications.

Actual bearing service life depends on load, lubrication, lubricant cleanliness, installation quality and operating conditions.

W33 Lubrication Arrangement

The W33 configuration provides a lubrication groove and holes in the outer ring.

This arrangement is useful in bearing assemblies designed for periodic relubrication through the housing.

An effective lubrication system must deliver an appropriate quantity of lubricant while limiting contamination.

The W33 designation does not specify:

• Lubricant type.

• Grease quantity.

• Relubrication interval.

• Operating temperature.

These parameters must be selected according to the application and manufacturer's recommendations.

C3 Radial Internal Clearance

C3 clearance is greater than normal radial internal clearance.

The effective clearance can change during mounting and operation because of:

• Interference fits between the shaft and inner ring.

• Fits between the outer ring and housing.

• Temperature differences between bearing rings.

• Mechanical loading and operating conditions.

The correct clearance class must be determined from the equipment design requirements.

A C3 bearing should not automatically be replaced with a normal-clearance version.

Load Ratings

TIMKEN specifies the following catalogue values for the 23134 EMW33C3:

Basic dynamic load rating (C): 1220 kN

Basic static load rating (C0): 1710 kN

The basic dynamic load rating is used in bearing fatigue-life calculations.

The basic static load rating is used when evaluating loads that may cause permanent deformation at the rolling element and raceway contact areas.

Neither value directly represents the maximum permissible load of a particular machine.

Correct bearing selection requires calculations that account for load direction, operating conditions and required service life.

Typical Industrial Applications

Double-row spherical roller bearings of this size are commonly used in appropriately designed industrial equipment, including:

• Industrial gearboxes.

• Mining machinery.

• Conveyors and material-handling systems.

• Steel production equipment.

• Paper manufacturing machinery.

• Heavy-duty drive assemblies.

• Industrial machinery subjected to substantial radial loads.

These are general applications for spherical roller bearings, not confirmed equipment-specific applications of this exact TIMKEN reference.

TIMKEN 23134 EMW33C3 vs Other 23134 Versions

Bearings within the 23134 series may be available with different internal constructions and features.

A cylindrical-bore bearing is not automatically interchangeable with a tapered-bore version.

When selecting a replacement from another manufacturer, compare the complete designation, cage design, internal clearance, lubrication arrangement and catalogue specifications.

Installation Guidelines

Before mounting the bearing, verify:

1. Shaft dimensions and surface condition.

2. Housing dimensions and condition.

3. Required shaft and housing fits.

4. Specified radial internal clearance.

5. Shaft and housing shoulder dimensions.

6. Cleanliness of the components.

7. Lubrication supply arrangement.

8. Alignment requirements.

Mounting force must not be transmitted through the rolling elements.

Use appropriate mounting tools and procedures selected according to the bearing size and interference fit.

After installation, verify lubrication conditions, operating clearance and correct assembly operation.

Frequently Asked Questions

What are the dimensions of TIMKEN 23134 EMW33C3?

The bearing dimensions are 170x280x88 mm: 170 mm bore diameter, 280 mm outside diameter and 88 mm width.

Is TIMKEN 23134 EMW33C3 a spherical roller bearing?

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

What cage does this bearing use?

It features a machined brass EM cage guided by the rolling elements.

What does W33 mean?

W33 indicates a lubrication groove and holes in the outer ring.

What does C3 mean?

C3 identifies greater-than-normal radial internal clearance.

Does this bearing have a tapered bore?

No. The TIMKEN 23134 EMW33C3 has a cylindrical bore with a nominal diameter of 170 mm.

Is the bearing sealed?

No. It is an open bearing without integrated seals.

What is the dynamic load rating?

The catalogue basic dynamic load rating is 1220 kN.

What is the static load rating?

The catalogue basic static load rating is 1710 kN.

How much does TIMKEN 23134 EMW33C3 weigh?

The approximate catalogue weight is 21.7 kg.

Can a normal-clearance bearing replace the C3 version?

Not without technical verification. Clearance selection depends on fits, temperature and operating requirements.

Can this bearing support axial loads?

Yes. Its double-row spherical roller construction can accommodate axial loads in both directions, subject to the bearing's operating limits and application requirements.

Can it compensate for shaft misalignment?

Yes. The self-aligning construction accommodates a limited degree of misalignment. The permissible value depends on operating conditions and manufacturer specifications.

TIMKEN 23134 EMW33C3 - Key Technical Information

TIMKEN 23134 EMW33C3 is a double-row spherical roller bearing measuring 170x280x88 mm. It features a cylindrical bore, machined brass EM cage, W33 lubrication groove and holes, and C3 radial internal clearance. Its basic dynamic load rating is 1220 kN, static load rating is 1710 kN, and approximate weight is 21.7 kg.

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