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Why buy this bearing

for another 90 years?

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Self-aligning Sphericalball bearings roller bear

Speedperformance

Operationalfriction

Energysavings

Relubrication

intervals

Self-aligningperformance

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The Self-Aligning Ball Bearing has had such an impact on

industrial development during the latest 90 years that it is

widely considered as one of the most important industrial

products invented during the 20th century. Thanks to ingeni-

ous engineering this SKF invention offers features that are

still unmatched in the bearing world:

HIGH SPEED PERFORMANCE

High machine productivity

The SKF Self-Aligning Ball Bearing has the lowest start-up

and operational friction of all rolling bearings. In practical

terms this means that the bearing has an unparalleled speed

range.

MINIMUM MAINTENANCE Fewer stoppages

Less grease usage

Lower life cycle cost

Only a small amount of lubricant is needed to keep the SKF

Self-Aligning Ball Bearing running efficiently. Its low friction

and favourable design means extended relubrication intervals.

The sealed version is greased for life.

ACCOMMODATES MISALIGNMENT

Lighter and more economic machines

The SKF Self-Aligning Ball Bearing

can accommodate misalignment

better than most other bearing types.

Even when wobbling (caused for

instance by rotating load) the

bearing runs smoothly.

PERFORMANCE COMPARIS

1)Initial misalignment only

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Besides the three basic decisive features, the SKF Self-Aligning

Ball Bearing also offers other important benefits to customers:

LOW VIBRATION AND NOISE LEVELS

Silent machines

Extensive comparative tests show that SKF Self-Aligning Ball

Bearings have the lowest vibration and noise levels because of

their accurate and smooth raceways.

ENVIRONMENTALLY FRIENDLY

Easy recycling and disposal

The low friction and minimal lubricant requirements save

resources and minimise the strain on the environment.

The sealed version provides additional environmental benefits.

SKF is one of the first multinational companies to beISO 14001 certified. This means that environmental issues

are a natural part of all relevant activities and decisions.

Customers can be confident that SKF will always supply

products that are energy efficient, environmentally acceptable,

easy to recycle and safe to dispose of.

bearing Deep grooveits ball bearings

+ +++

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++ +++1)

TH OTHER BEARINGS

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Comefri

Industrial fan

ABB Flakt

Industrial fan

Jokan

Luggage conveyor

system for airports

Bhler AG

Cereal mill

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Alfa Laval Separation AB

Centrifugal separator for edible oil processing

Emba Machinery AB

Folds, glues and prints

on carton board

Ferag

Stapling machine

for magazines

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Berti

Shredder for vineyards

and fruit farms

The Toro Company

Mower for golf course maintenance

Karl Mayer

Weaving machine

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oyoda Automatic Loom Works, Ltd.

ing spinning machine for yarn production

Savio

Twisting machine

for thread production

Pompe Gabbioneta

Process pump for refineries

and power plants

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WE REDUCE FRICTION TO HELP YOU

MOVE THE WORLD FORWARD

In 1907, Sven Wingqvist invented the Self-Aligning Ball Bearing and laid the

foundation for a new company SKF.

The company produced 2 200 bearings during the first year. Today we make

about 230 000 bearings. Every hour.

SKF is the largest bearing manufacturer in the world with a worldwide network

of 200 manufacturing and sales companies together with some 7 000 authorised

distributors. Over the years, SKF has installed more bearings than any othermanufacturer. This has given us a wealth of knowledge about bearing arrange-

ments that we gladly share with you.

Part of our leadership status is a result of allocating large resources to research

and development. Our driving force is to endeavour to learn more about bearings,

seals and applications than any other company.

Why? Because the more we know about the microscopic world of bearings and

seals, the more you can control your products and processes.

The performance of the Self-Aligning Ball Bearings is evidence of SKFs

continuing ambition to maintain its leading position.

Copyright SKF 1999Publication 4813 E

For further information please contact