October 30, 2007 © SKF Group Slide 0

SKF fan upgrade services

SKF Fluid Segment

October 30, 2007 © SKF Group Slide 2

Industry and application

The applictions:

• Hot gas or high speed process fans

Target industries (end users):• Steel

• Cement

• Mining

• Pulp and paper

• Power

• Food

• Chemicals

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Customer needs and trends

Commercial: • Complete packages

• Sub supply of complete fan

Technical: • Lower bearing operating temperature

• Lower maintenance costs

• Easy servicing

• Oil lubrication

• Reliability in operation

• Increased fan performance

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Problems and issues

Fans are a critical part of many industrial processes• process fan failures are costly and result in production stop

and/or environmental risks

Fan performing on the limit due to high temp. and speed• high operating temperatures and hot gases

• high operating temperatures- higher maintenance costs – higher breakdown risks

Higher performance demands

Lower Total Cost of Operation • maintenance cost, downtime and service life (bearing and lubrication)

• SKF hot line receives one phone call a day on hot running fans (USA)

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Technical impact

• How can SKF reduce the temperature from 105 C to 60 C?

current situation value for customer

bearing temp.105 °C 60°C

fan speed (rpm)

perform

ance

October 30, 2007 © SKF Group Slide 6

The SKF fan upgrade services solution

• By combining multi-platform knowledge, SKF is now providing a completestandardized ‘system solution’ that addresses all the customer’s critical issues.

• The innovative design of new lubrication 'kits' (automatic grease and oil) based on the bearing lubrication needs.

• SKF aim to reduce the Total Cost of Ownership (TCO) by increasing reliability and lowering maintenance costs, while reducing operating temperature.

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What is the fan upgrade service solution?

Assessment

SKF Asset Mgt Services

SKF Engineering service

Bearing housings (optimised design) and low friction seals

Self-aligning solution

Circulating oil / automatic greaselubricationsystems

Installation and ongoing support e.g. CoMo

• Full value is achieved when the complete SKF fan upgrade is installed.

• SKF has combined knowledge from the key platform areas and created a complete ‘system solution’ for industrial fan applications

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Benefits to the customer

• A complete ‘fan upgrade service’ offer from one supplier

– Including a specific lubrication system (oil or grease) designed together with the

bearing / housing unit for optimal performance.

• Standardized fan upgrade alternative to a customer designed system

• Enhanced bearing and seal service life and higher fan speeds.

• Reduced operating temperature

• Increased reliability

• Reduced total cost of operation (including maintenance costs)

• Reduced environmental effects

• Uniqueness: SKF is the only supplier offering products and knowledge in bearings and lubrication; and providing optimum integration engineering capabilities

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Fan upgrade service – key technical areas

The automatic lubrication systems:• Essential for preventive maintenance

• Single most important component in the temperature-reducing solution

• Grease is a more temperature sensitive lubrication method than oil lubrication

SKF circulating oil lubrications systems• A few standard variants for very critical applications

• Capacity for one or two fans

• Controlled temperature and oil viscosity – cool, clean oil increasing oil life

• SKF software program and recommendations

• Frequency controlled pumps and cooling fan for lower energy consumption

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The bearing shaft solution

Traditional bearing systems

• Free bearing moving in the bearing housing creates axial loads in the system

• Load is higher on one side of the bearing

SKF Self-aligning bearing systems

• SKF solution overcomes friction, misalignment, vibrations and heat

• Keeps operating temperatures down, reduces vibration and noise, leading to extended bearing service life.

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The bearing shaft solution

SKF bearing housings

• Specific designs to address temperature issues and remove thermal energy

• Specially designed oil seals to avoid leakage.

• Combined with the self aligning system SKF can dramatically reduce bearing operating temperatures in high speed and hot gas fans.

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Fan upgrade service value: Total Cost of Ownership

• The results are obviously beneficial from a business perspective, but they are also important for sustainability!

Amount of

Production

Machine efficiency

Capacity

Increased production output can be achieved by reduction of unplanned stops or by increasing machine

capacity i.e. fan speed

“Reduce the total cost of ownership by increasing reliability and lowering maintenance costs, by a unique combination of bearing and housing units and

dedicated lubrication systems”

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Energy saving and sustainability

• Much reduced friction

• Lower bearing operating temperature

• Reduced lubrication consumption v fan life

• Reduced levels of excessive oil

• Reduced grease waste

• No oil leakage

• Reduced energy consumption

• Longer component life

Users stretch Fan performance to the limit: energy costs become the largest part of the total cost due to the high heat levels (up to 80% of total TCO).

October 30, 2007 © SKF Group Slide 14

DSP on a critical fan at a large paper mill

SKF offered a step-by-step process to boost fan performance and cut operating costs• Assessment

• Recommendations

• Installation and ongoing support

SKF offered one source for a complete fan upgrade service:

Assessment

SKF Asset Mgt Services

SKF Engineering service

Bearing housings (optimised design) and low friction seals

Self-aligning solution

Circulating oillubricationsystems

Installation and ongoing support e.g. CoMo

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• From 3 months mean time between failures to 16 months

• From average 82 C to 65 C bearing operating temperature

Return On Investment (ROI) summary• Investment in new SKF solutions: $24 150

• Total maintenance, repair and downtime savings: $140 909

– Met EPA downtime requirement saving $25 000

• Total net savings: $116 759

� ROI (16 months): 483%

ROI calculations are from the SKF Documented Solutions Program.

Cost savings may vary between end users and industries.

DSP on a critical fan at a large paper mill

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SKF 360 reference case – publication 6570

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Fan upgrade services: Communication material

2008-06-17 ©SKF Slide 17 [Code] SKF [Organisation]

Brochure 6597 EN

October 30, 2007 © SKF Group Slide 18