SKF 7318 BEGAM 90x190x43 - Angular Contact Ball Bearing

SKF 7318 BEGAM 90x190x43 mm - Single Row Angular Contact Ball Bearing

SKF 7318 BEGAM 90x190x43 mm is a single row angular contact ball bearing from the SKF Explorer performance class, featuring a 40-degree contact angle. It is designed to accommodate radial loads and axial loads acting in one direction. The BE execution identifies an optimized internal design, GA indicates universal matching with light preload, and M specifies a machined brass cage. The bearing features a cylindrical bore and an open construction without integrated seals.

Technical Specifications - SKF 7318 BEGAM

Load ratings and speeds are catalogue values. Actual operating conditions require consideration of applied loads, lubrication, mounting fits, temperature and the complete bearing arrangement.

What Does SKF 7318 BEGAM Mean?

7318 - Bearing Series and Size

The designation 7318 identifies a single row angular contact ball bearing belonging to the 73 series.

Its principal dimensions are:

• Bore diameter: 90 mm.

• Outside diameter: 190 mm.

• Bearing width: 43 mm.

The 73 series comprises angular contact ball bearings designed to accommodate combined radial and axial loads.

B - 40-Degree Contact Angle

The letter B indicates a nominal contact angle of 40 degrees.

The contact angle defines the direction of load transmission between the balls and raceways.

A 40-degree contact angle enables the bearing to accommodate substantial axial loads in one direction together with radial loads.

This characteristic is particularly important when selecting bearings for combined loading conditions.

E - Optimized Internal Design

The letter E identifies an optimized internal bearing geometry.

This construction influences the bearing's load-carrying capability and operating characteristics.

Not all 7318 bearing variants with identical dimensions should be considered equivalent to the BE execution.

GA - Universal Matching with Light Preload

The suffix GA identifies a bearing designed for universal matching.

When two compatible bearings are correctly paired, the arrangement provides light preload.

This execution allows bearings to be arranged in back-to-back, face-to-face or tandem configurations according to the application requirements.

GA does not indicate increased C3 radial internal clearance.

M - Machined Brass Cage

The letter M identifies a machined brass cage.

The cage maintains the correct spacing between the balls and supports their guidance during operation.

Its construction differs from polymer and steel cages used in other bearing variants.

Construction of SKF 7318 BEGAM

Inner Ring

The inner ring has a cylindrical bore measuring 90 mm.

Its raceway is designed to operate with the balls at a nominal contact angle of 40 degrees.

Outer Ring

The outer ring has a diameter of 190 mm.

The asymmetric raceway geometry enables the bearing to accommodate combined loads.

Steel Balls

The rolling elements are manufactured from bearing steel.

They transmit loads between the inner and outer ring raceways through rolling contact.

Machined Brass Cage

The machined brass cage separates the rolling elements and maintains their correct circumferential spacing.

Open Bearing Construction

SKF 7318 BEGAM does not incorporate integrated seals or shields.

Suitable lubrication and protection against contamination must be provided by the surrounding machinery or bearing housing.

Radial and Axial Load Capacity

Radial Loads

SKF 7318 BEGAM accommodates loads acting perpendicular to the shaft axis.

Its basic dynamic load rating C is 166 kN.

Its basic static load rating C0 is 146 kN.

These values are used in bearing life calculations and load assessments. They must not be interpreted as universally permissible operating loads without additional engineering calculations.

Axial Loads

A single SKF 7318 BEGAM bearing accommodates axial loads acting in one direction.

If axial loads may act in both directions, an appropriate bearing arrangement must be designed.

Combined Loads

The angular contact ball bearing design enables simultaneous accommodation of radial and axial loads.

The 40-degree contact angle is an important parameter when selecting a bearing for combined loading conditions.

Universal Matching of SKF 7318 BEGAM

The GA execution is one of the defining characteristics of this bearing variant.

It allows compatible angular contact ball bearings to be matched in different configurations while providing the specified light preload under appropriate mounting conditions.

Back-to-Back Arrangement - DB

In a back-to-back arrangement, the bearings are positioned with their contact lines diverging outward.

This configuration can provide high moment stiffness and effective shaft support when tilting moments are present.

It is commonly considered where rigidity of the bearing arrangement is important.

Face-to-Face Arrangement - DF

In a face-to-face arrangement, the bearing contact lines converge inward.

This configuration accommodates axial loads in both directions but has different stiffness and misalignment characteristics compared with a back-to-back arrangement.

Tandem Arrangement - DT

In a tandem arrangement, the bearings are oriented in the same direction.

This configuration is used to increase axial load-carrying capacity in one direction.

An appropriate arrangement must also be provided to accommodate axial loads acting in the opposite direction.

The selection of a bearing configuration requires engineering calculations and consideration of the complete mechanical assembly.

SKF 7318 BEGAM vs Other 7318 Bearing Variants

7318 BEGAM vs 7318 BECBM

Both variants belong to the 7318 series and have principal dimensions of 90x190x43 mm.

However, their matching characteristics differ.

The GA execution is designed to provide light preload when correctly matched, while CB identifies a specified axial clearance in a matched arrangement.

This distinction is important when replacing bearings operating in pairs.

7318 BEGAM vs 7318 BEGAP

Both variants belong to the GA universally matchable bearing group.

However, they differ in cage material.

Selecting the appropriate version requires consideration of operating temperature, lubrication and application conditions.

7318 BEGAM vs 7318 BEGAPH

The BEGAPH version incorporates a PEEK cage.

The BEGAM version features a machined brass cage.

Despite having matching principal dimensions and similar intended applications, identical operating characteristics should not be assumed.

Alternative Designations and Search References

The product may be encountered under the following written forms:

• SKF 7318 BEGAM

• 7318 BEGAM SKF

• 7318BEGAM SKF

• SKF 7318BEGAM

• 7318 BEGAM 90x190x43

The complete SKF catalogue designation is 7318 BEGAM.

Variants such as 7318 BECBM, 7318 BEGAP and 7318 BEGAPH identify different technical executions rather than alternative spellings of the same bearing.

Typical Applications of Angular Contact Ball Bearings

Angular contact ball bearings are used in mechanical assemblies where radial and axial loads act simultaneously.

Typical application categories include:

• Industrial machinery shafts.

• Industrial drive systems.

• Pump assemblies.

• Rotating mechanical equipment.

• Matched bearing arrangements.

• Mechanical systems requiring defined axial stiffness.

These are general applications based on angular contact ball bearing construction.

They do not establish confirmed installation of SKF 7318 BEGAM in any specific machine model.

Industrial Shaft Support

Angular contact ball bearings can provide radial shaft support while accommodating axial loads in a defined direction.

The correct bearing arrangement depends on load magnitude, direction and operating conditions.

Industrial Drive Systems

Angular contact ball bearings may be used in suitable industrial drive arrangements where combined loading occurs.

Bearing selection must account for rotational speed, lubrication, mounting conditions and temperature.

Pump Assemblies

Angular contact ball bearings can support rotating shafts in pump assemblies exposed to combined radial and axial loads.

The complete bearing arrangement must be designed according to the operating requirements.

Matched Bearing Arrangements

Universally matchable angular contact ball bearings can be installed in pairs to achieve specific axial load-carrying and stiffness characteristics.

The GA execution must be considered when selecting the matching configuration.

Selection and Interchangeability of SKF 7318 BEGAM

Before ordering, verify:

1. Complete SKF designation 7318 BEGAM.

2. Dimensions 90x190x43 mm.

3. Contact angle of 40 degrees.

4. BE internal design.

5. GA universal matching execution.

6. Machined brass cage M.

7. Tolerance class P6.

8. Required preload.

9. Direction of axial loading.

10. Radial operating loads.

11. Bearing arrangement configuration.

12. Rotational speed.

13. Operating temperature.

14. Lubrication method.

15. Shaft and housing fits.

Can Another Manufacturer's Bearing Measuring 90x190x43 mm Replace SKF 7318 BEGAM?

Not necessarily.

The complete internal design, contact angle, tolerance class, cage construction, matching characteristics and required preload must be compared.

Matching dimensions alone do not establish interchangeability.

Why Is the GA Suffix Important?

The GA suffix identifies a specific universal matching and preload execution.

Using a bearing with different matching characteristics may change the axial clearance, preload, stiffness and operating behaviour of the bearing arrangement.

Installation and Operation of SKF 7318 BEGAM

Clean Installation Conditions

Install the bearing in a clean environment and protect the raceways and balls against contamination.

Even small particles can affect bearing performance and service life.

Check Mounting Fits

Verify the dimensions and tolerances of the shaft and housing.

Incorrect mounting fits may affect bearing operating conditions and preload.

Correct Bearing Orientation

Because a single row angular contact ball bearing accommodates axial loads in one direction, correct installation orientation is essential.

In matched bearing arrangements, the bearings must be positioned according to the intended configuration.

Application of Mounting Force

Do not transmit mounting force through the rolling elements.

Apply installation force to the ring being mounted with an interference fit.

Lubrication

SKF 7318 BEGAM is an open bearing without factory-applied lubricant.

Suitable lubrication must be provided according to the operating conditions.

Operating Temperature

The effects of temperature on mounting fits, preload and lubricant properties must be considered during operation.

Storage

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

Protect it from moisture, corrosion and mechanical damage before installation.

Frequently Asked Questions - SKF 7318 BEGAM

What Are the Dimensions of SKF 7318 BEGAM?

The bearing has a bore diameter of 90 mm, an outside diameter of 190 mm and a width of 43 mm.

What Does BEGAM Mean?

B indicates a 40-degree contact angle, E identifies an optimized internal design, GA indicates universal matching with light preload, and M specifies a machined brass cage.

Can SKF 7318 BEGAM Carry Axial Loads in Both Directions?

A single bearing accommodates axial loads in one direction. Axial loads in both directions can be accommodated by an appropriately configured bearing pair.

Does SKF 7318 BEGAM Have a Brass Cage?

Yes. The suffix M identifies a machined brass cage.

What Does GA Mean in SKF 7318 BEGAM?

GA identifies a universally matchable bearing designed to provide light preload when correctly paired with another compatible bearing.

Is SKF 7318 BEGAM Sealed?

No. It is an open bearing without integrated seals or shields.

Are SKF 7318 BEGAM and 7318 BECBM Interchangeable?

Automatic interchangeability should not be assumed. These variants differ in their matching characteristics, which may affect axial clearance and preload.

What Are the Load Ratings of SKF 7318 BEGAM?

The basic dynamic load rating C is 166 kN, and the basic static load rating C0 is 146 kN.

SKF 7318 BEGAM - Quick Technical Overview

SKF 7318 BEGAM is a single row SKF Explorer angular contact ball bearing measuring 90x190x43 mm, featuring a 40-degree contact angle. It incorporates a machined brass cage M and a GA universally matchable execution designed for light preload. The bearing accommodates radial loads and axial loads acting in one direction.

SKF 7318 BEGAM at simmering.pl

SKF 7318 BEGAM is available to order from simmering.pl, a specialist supplier of industrial bearings, rotary shaft oil seals and technical replacement components.

We serve manufacturing companies, maintenance departments, machinery service providers and B2B customers.

Our warehouse and order processing operations are located in Lublin, Poland.

We supply customers throughout Poland and the European Union and offer worldwide shipping.

We assist customers in identifying SKF bearings by complete manufacturer designation, dimensions, construction and technical specifications.