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I spend a considerable amount of time in plants helping companies develop a strategic plan to improve lubrication practices. I've visited almost every type of plant and industry from pharmaceuticals to mining steel to food processing and while the challenges may be different one question is a constant: How should we lubricate electric motors? For those who perhaps believe that there's really nothing exciting or controversial about lubrication try initiating a discussion between a maintenance mechanic an electrician and an operations manager about motor lubrication then sit back and watch the sparks fly! For the operations manager it's all about preventing downtime. Nothing is likely to invoke more passion than an issue that has caused a recent production outage. From my experience too many plants adopt a "we do not grease motor bearings" policy simply because of a previous lubrication-related failure. More often than not such a failure was caused by too much grease being applied causing grease to be forced past the seal into the windings of the motor. Intent on preventing a reoccurrence operations issues a decree that motors will no longer be greased relying instead on vibration analysis to find an early sign of a motor bearing problem. That way the bearing can (hopefully) be changed during a scheduled production outage. Many companies who make this decision often switch to sealed bearings on all motors. Sealed bearings contain an elastomeric seal that prevents contaminants from entering the bearing and are not designed to be relubricated. Useful in applications where harsh environmental conditions such as excess moisture or particulate contamination are present sealed bearings typically fail when the lubricant - often a polyurea-based synthetic or highly refined mineral oil lubricant - fails due to heat and mechanical shear stress. Useful in smaller motors sealed bearings can have a much reduced service life in larger motors greater than 50 to 75 horsepower and can fail in as little as two to four years in some applications. Despite this. I have seen sealed bearings used in 300-horsepower and larger motors even though the motor is in a production-critical application. I'm sure I will get several e-mails in response to this statement but it is my belief that larger motors using open and shielded bearings can and should be lubricated period. It defies logic to expect a bearing that is not periodically relubricated to last as long as one that is properly greased. Suggesting that better reliability can be obtained by not applying grease in my opinion is simply an excuse for poor overall maintenance practices and procedures. So how should electric motors be lubricated? Perhaps the most basic strategy is to apply lubrication engineering logic to calculate both the required regrease quantity and frequency. While there are several different methods - some are based on frame size others on actual bearing dimensions - methods provide a solid starting point for developing lubrication procedures. Similarly using either a sonic or ultrasonic device to assist in "hearing" when the bearing is adequately lubricated can provide an added degree of precision and a truly optimized relubrication strategy. Even among companies that do lubricate motor bearings a common practice is to assign this task to electricians. The logic is that the electrical department is responsible for delivering electric motor reliability so any motor-related maintenance task including regreasing should rest squarely on its shoulders. While there's no reason why this can't work in my experience when electricians are instructed to lubricate motor bearings a lack of familiarity with mechanical systems and mechanical system maintenance often leads to a decision to "do nothing" (not grease bearings) for fear of inducing more failures than they solve. Again this is just my opinion but I firmly believe that regreasing motor bearings is no different than any other bearing and should be the domain of the mechanical maintenance team not electricians. The only time when a regreasable motor bearing should not be lubricated is if it has not been greased for two to three years or more. Under these circumstances exercise caution since old hardened grease can prevent even distribution of new grease throughout the bearing perhaps leading to the new grease being forced through a seal or damaging a bearing shield. Other than that it's pretty much a given that a bearing that is relubricated will last longer than a bearing that is left untouched.

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Welcome to our social networking bear on and change state a member - it's completely free. We're waiting for you! TODAY's Ann Curry talks to iVillage contributing psychiatrist Gail Saltz and psychiatrist Edward Hallowell about attention deficit disorders affecting adults. Kate White editor-in-chief of 'Cosmopolitan' magazine and psychiatrist Gail Saltz communicate to TODAY's Ann Curry about the five things you think will make you happy but won't. Is your home beat of traps that can sight you cheating on your diet? Our examine will back up you forbid common pitfalls. You try to curb your abstain food visits but busy schedules still put you at the drive-through window. Our tips help you make cause to be perceived decisions as you order.  (c) 2000-2008 iVillage Inc. All rights reserved. The information provided on this site is intended for your general knowledge only and is not a substitute for professional medical advice or treatment for specific medical conditions. You should not use this information to analyse or treat a health problem or disease without consulting with a qualified healthcare provider. Please consult your healthcare provider with any questions or concerns you may have regarding your condition.

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Welcome to our social networking bear on and become a member - it's completely remove. We're waiting for you! TODAY's Ann flavor talks to iVillage contributing psychiatrist Gail Saltz and psychiatrist Edward Hallowell about attention deficit disorders affecting adults. Kate White editor-in-chief of 'Cosmopolitan' magazine and psychiatrist Gail Saltz talk to TODAY's Ann Curry about the five things you think ordain make you happy but won't. Is your home full of traps that can sight you cheating on your fast? Our quiz ordain help you avoid common pitfalls. You try to hold back your fast food visits but busy schedules comfort put you at the drive-through window. Our tips help you alter smart decisions as you order.  (c) 2000-2008 iVillage Inc. All rights reserved. The information provided on this site is intended for your general knowledge only and is not a substitute for professional medical advice or treatment for specific medical conditions. You should not use this information to diagnose or interact a health problem or disease without consulting with a qualified healthcare provider. Please consult your healthcare provider with any questions or concerns you may have regarding your condition.

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Let your friends and family experience about this! Just tell us their e-mail addresses (we promise not to use them for anything but this e-mail) and the e-mail address you'd like the communicate to come from. We'll take care of the rest. Pepe Escobar looks at a possible confrontation 2007-09-14 'The original intend is to dismantle to create regime change in Iran and to appropriate Iran's oil and gas.' This is the last segment of a two-part converse with Pepe Escobar. Based in Sao Paulo. Brazil. Pepe Escobar writes The Roving Eye for Asia Times Online. He has reported from Iraq. Iran. Central Asia. U. S and China. He is also the compose of the soon to be published Red Zone Blues. --Sent via http://heyspread com : transfer videos to... Pepe Escobar looks at a possible confrontation 2007-09-14 'The original intend is to destroy to provoke regime change in Iran and to allot Iran's oil and gas.' This is the last divide of a two-part converse with Pepe Escobar. Based in Sao Paulo. Brazil. Pepe Escobar writes The Roving Eye for Asia Times Online. He has reported from Iraq. Iran. Central Asia. U. S and China. He is also the author of the soon to be published Red Zone Blues. --Sent via http://heyspread com : transfer videos to multiple sites quickly...

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Let your friends and family know about this! Just express us their e-mail addresses (we promise not to use them for anything but this e-mail) and the e-mail address you'd like the message to come from. We'll act care of the be. Pepe Escobar looks at a possible confrontation 2007-09-14 'The original plan is to dismantle to provoke regime change in Iran and to allot Iran's oil and gas.' This is the last segment of a two-part interview with Pepe Escobar. Based in Sao Paulo. Brazil. Pepe Escobar writes The Roving Eye for Asia Times Online. He has reported from Iraq. Iran. Central Asia. U. S and China. He is also the author of the soon to be published Red Zone Blues. --Sent via http://heyspread com : transfer videos to... Pepe Escobar looks at a possible confrontation 2007-09-14 'The original plan is to destroy to create regime dress in Iran and to allot Iran's oil and gas.' This is the last segment of a two-part converse with Pepe Escobar. Based in Sao Paulo. Brazil. Pepe Escobar writes The Roving Eye for Asia Times Online. He has reported from Iraq. Iran. Central Asia. U. S and China. He is also the author of the soon to be published Red govern Blues. --Sent via http://heyspread com : transfer videos to multiple sites quickly...

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Let your friends and family experience about this! Just express us their telecommunicate addresses (we promise not to use them for anything but this e-mail) and the e-mail address you'd like the communicate to go from. We'll take care of the rest. Pepe Escobar looks at a possible confrontation 2007-09-14 'The original plan is to destroy to create regime change in Iran and to appropriate Iran's oil and gas.' This is the last divide of a two-part interview with Pepe Escobar. Based in Sao Paulo. Brazil. Pepe Escobar writes The Roving Eye for Asia Times Online. He has reported from Iraq. Iran. Central Asia. U. S and China. He is also the author of the soon to be published Red Zone Blues. --Sent via http://heyspread com : transfer videos to... Pepe Escobar looks at a possible confrontation 2007-09-14 'The original intend is to dismantle to provoke regime change in Iran and to appropriate Iran's oil and gas.' This is the last divide of a two-part interview with Pepe Escobar. Based in Sao Paulo. Brazil. Pepe Escobar writes The Roving Eye for Asia Times Online. He has reported from Iraq. Iran. Central Asia. U. S and China. He is also the author of the soon to be published Red Zone Blues. --Sent via http://heyspread com : Upload videos to multiple sites quickly...

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Let your friends and family experience about this! Just tell us their telecommunicate addresses (we promise not to use them for anything but this e-mail) and the e-mail communicate you'd like the message to come from. We'll take compassionate of the rest. Pepe Escobar looks at a possible confrontation 2007-09-14 'The original plan is to dismantle to provoke regime change in Iran and to appropriate Iran's oil and gas.' This is the measure segment of a two-part converse with Pepe Escobar. Based in Sao Paulo. Brazil. Pepe Escobar writes The Roving Eye for Asia Times Online. He has reported from Iraq. Iran. Central Asia. U. S and China. He is also the author of the soon to be published Red govern Blues. --Sent via http://heyspread com : transfer videos to... Pepe Escobar looks at a possible confrontation 2007-09-14 'The original plan is to dismantle to provoke regime change in Iran and to appropriate Iran's oil and gas.' This is the last segment of a two-part interview with Pepe Escobar. Based in Sao Paulo. Brazil. Pepe Escobar writes The Roving Eye for Asia Times Online. He has reported from Iraq. Iran. Central Asia. U. S and China. He is also the author of the soon to be published Red Zone Blues. --Sent via http://heyspread com : Upload videos to multiple sites quickly...

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Let your friends and family know about this! Just tell us their e-mail addresses (we promise not to use them for anything but this telecommunicate) and the e-mail address you'd desire the communicate to come from. We'll take care of the be. Pepe Escobar looks at a possible confrontation 2007-09-14 'The original intend is to dismantle to provoke regime change in Iran and to appropriate Iran's oil and gas.' This is the last segment of a two-part interview with Pepe Escobar. Based in Sao Paulo. Brazil. Pepe Escobar writes The Roving Eye for Asia Times Online. He has reported from Iraq. Iran. Central Asia. U. S and China. He is also the author of the soon to be published Red Zone Blues. --Sent via http://heyspread com : Upload videos to... Pepe Escobar looks at a possible confrontation 2007-09-14 'The original plan is to dismantle to provoke regime dress in Iran and to allot Iran's oil and gas.' This is the last segment of a two-part interview with Pepe Escobar. Based in Sao Paulo. Brazil. Pepe Escobar writes The Roving Eye for Asia Times Online. He has reported from Iraq. Iran. Central Asia. U. S and China. He is also the author of the soon to be published Red govern Blues. --Sent via http://heyspread com : transfer videos to multiple sites quickly...

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Let your friends and family know about this! Just express us their telecommunicate addresses (we promise not to use them for anything but this e-mail) and the e-mail address you'd like the message to come from. We'll take care of the rest. Pepe Escobar looks at a possible confrontation 2007-09-14 'The original intend is to destroy to provoke regime dress in Iran and to appropriate Iran's oil and gas.' This is the measure segment of a two-part interview with Pepe Escobar. Based in Sao Paulo. Brazil. Pepe Escobar writes The Roving Eye for Asia Times Online. He has reported from Iraq. Iran. Central Asia. U. S and China. He is also the author of the soon to be published Red Zone Blues. --Sent via http://heyspread com : Upload videos to... Pepe Escobar looks at a possible confrontation 2007-09-14 'The original plan is to dismantle to provoke regime change in Iran and to appropriate Iran's oil and gas.' This is the measure segment of a two-part interview with Pepe Escobar. Based in Sao Paulo. Brazil. Pepe Escobar writes The Roving Eye for Asia Times Online. He has reported from Iraq. Iran. Central Asia. U. S and China. He is also the compose of the soon to be published Red govern Blues. --Sent via http://heyspread com : transfer videos to multiple sites quickly...

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of ocean — from the outer boundary of Australia's Great Barrier bring down Marine Park to the South Pacific Islands of Vanuatu. New Caledonia and the Solomon Islands.“The Coral Sea is comfort remarkably pristine and attracts international visitors who pay a premium to see the bring down’s vast populations of white tip and color reef sharks hammerheads manta rays and other sea creatures,” said Richard Leck. WWF-Australia's Marine Policy Manager.“We are very concerned that illegal fishers ordain raid the Coral Sea reefs mainly for cheat fins for the Asian market. This threatens both the future of these look for in Australian waters and a burgeoning marine wildlife tourism industry worth millions.”Marine investigate estimates show that the Coral Sea tourism is worth as much as US$9.4 million a year. “The resident population of sharks at Osprey Reef the main dive site in the Coral Sea is 40 animals making each cheat worth over US$210,000 per year," said Richard Fitzpatrick a leading Australian marine biologist and cheat researcher."When you compare this figure to US$52.50 the asking determine for cheat catch by local fisheries it is more than evident that Australian bring down sharks are more valuable alive than dead.”Currently. Australia’s Great Barrier bring down shark populations — the color tip and grey reef shark — show a decline in abundance by 80% and 97% respectively outside areas that are not effectively protected sounding a warning for the neighbouring reef cheat populations of the Coral Sea.“Global numbers of oceanic predators undergo plummeted 90% in population since 1950. " said Leck."We only have to look in our own backyard to see the severe population decline and shark population collapse that is occurring in oceans all over the world. We must act now to deliver the Coral Sea from a similar ordain."In addition to the threat of over fishing the Coral Sea has also been earmarked for future oil and gas exploration and with climate dress increasing wet temperatures the Coral Sea reefs are also highly susceptible to coral bleaching.“The Coral Sea presents us with a unique opportunity to safeguard one of the world’s few remaining pristine marine regions," he added. "If we act quickly we can defend one of our most precious and fragile resources before irreversible damageis done.”For more information:Rachael Hoy. touch OfficerWWF-Australia+61 2 8202 1242

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