Written by Seamus Dolly

Continued from page 1

Incidentally, in low-speed, combustion-risk situations,repparttar cages can be made from brass as well. This is to help reduce any incidence of “sparking” betweenrepparttar 102765 balls/rollers andrepparttar 102766 cage itself. The reason for a cage inrepparttar 102767 first place, is to maintain distance between rollers/balls, because it is only inrepparttar 102768 cases of high low to space ratios, where no space is needed that cages are unnecessary and these are low speed applications.

Other low speed bearing/plain bushings are also “steel backed” with a coating of P.T.F.E. or other plastic on them. Again, this is to give some self lubrication properties, as well as to reduce friction. P.T.F.E. happens to be excellent, as it has a low coefficient of friction.

Bearing failure is primarily due to misalignment and contamination. Of course, there are many variables, such as instances where undue load/other mechanical failure happens to berepparttar 102769 case. A common cause of failure inrepparttar 102770 case of automotives, is lack of oil or insufficient oil pressure. Absence of proper cooling, generally, will bring excessive loads.

Bearing failure is all too often due to improper installation or fitting practices. Indeed, bearings can be “onrepparttar 102771 way out” almost immediately. Induction coil heaters are readily available from manufacturers to easerepparttar 102772 fitting operation, and sparerepparttar 102773 bearings undue trauma. Mechanical shock from abuse with a hammer has destroyed many new bearings and they are destined to fail, as little actual work will verify. Indeed, I’ve seen a case where a six-year old machine was overdue some maintenance, and got new bearing fitted six times in six months. It would have been best to leave it overdue; such wasrepparttar 102774 fitting skill ofrepparttar 102775 men involved. Even withoutrepparttar 102776 hammer, contamination while fitting, poses massive problems. Allowing foreign bodies to migrate intorepparttar 102777 bearing will have a detrimental effect.

Once fitted even, contaminants from its oil/grease/air supply can make running conditions unbearable. Clean lubricants and environments arerepparttar 102778 answer, and inrepparttar 102779 specific case of oil; clean filters, lines andrepparttar 102780 oil itself, will provide an up-time saving.

Seamus Dolly is the webmaster at www.CountControl and his background is in engineering.

Improve Gas Mileage Without Damaging Your Car

Written by Marilyn Pokorney

Continued from page 1

Many ads feature glowing testimonials by satisfied customers. There are too many variables that affect fuel consumption, such as traffic, road and weather conditions,repparttar car's condition and overall maintenance, andrepparttar 102764 driving habits ofrepparttar 102765 owner.

In one case a consumer sent a letter to a company praising its gas-saving product. But what was not mentioned inrepparttar 102766 advertisement wasrepparttar 102767 fact thatrepparttar 102768 consumers vehicle also had an engine tune-up atrepparttar 102769 timerepparttar 102770 device was installed.

Some advertisers claim thatrepparttar 102771 gas-saving device is approved byrepparttar 102772 Federal government. No government agency endorses gas-saving products for cars. The seller can only state thatrepparttar 102773 item has been tested byrepparttar 102774 EPA. Ifrepparttar 102775 advertiser claims thatrepparttar 102776 product has been tested byrepparttar 102777 EPA ask to seerepparttar 102778 results or contactrepparttar 102779 EPA directly.

If you have already purchased a gas-saving product and you are not satisfied, contactrepparttar 102780 manufacturer and ask for a refund. An honest company offers a money-back guarantee. If you are not satisfied withrepparttar 102781 company's response, contact your local or state consumer protection agency orrepparttar 102782 Better Business Bureau.

Keeping your car in tip top condition isrepparttar 102783 best way to getrepparttar 102784 best gas mileage your vehicle has to offer. Every vehicle come with an owners manual. Read and follow whatrepparttar 102785 manufacturer recommends.

Three simple steps that will help improve gas mileage in all vehicles:

Getting a tune-up. Checking tire pressure. Removing any excess weight fromrepparttar 102786 car's trunk.

For over 20 more tips and one secret hint go to

Author: Marilyn Pokorney Freelance writer of science, nature, animals and the environment. Also loves crafts, gardening, and reading. Website:

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