Grease noise and 6 more popular bearing myths

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Grease noise and 6 more popular bearing myths
Grease noise and 6 more popular bearing myths
Anonim
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There are a huge number of myths and misconceptions regarding automobile bearings, many of which have appeared not without the help of "folk art" and the desire to save money where it is definitely not necessary to do so. Therefore, it's time to talk about the most common ones. Some of the myths successfully developed in the driving environment back in the years of the Soviet Union and wanders around in garages and service stations to this day.

1. Closed bearing - stronger

Never stronger
Never stronger

Nothing like this. A thin plate is needed only to protect the balls from excessive dust contamination. It does not affect the strength characteristics of the entire bearing from the word "at all". However, in a sense, sealed bearings do indeed last longer.

2. Gap means marriage

A gap does not mean marriage
A gap does not mean marriage

If the bearing has a radial clearance, due to which there is a backlash of the outer race relative to the inner one, this does not mean that it is defective. In fact, this gap is a technical solution. It is necessary to prevent jamming due to thermal expansion of the part.

3. Shocks when landing are not scary

Replacement is not easy
Replacement is not easy

Any more or less perceptible impact on the bearing at the time of its installation, for example, with a wrench, can easily damage the part. Very often, in this case, deformation of the rollers, balls or raceways occurs. All of this reduces bearing life and results in abnormal noise.

4. Ball bearing is better than roller bearing

Each is good in its own way
Each is good in its own way

It is not true. In reality, each bearing is good in its own way. The choice of a particular part is carried out depending on the specific conditions: the type of design and the subtleties of operation. Roller bearings carry loads better. Ball bearings have the best rotation speed.

5. The sealed bearing contains a preservative grease

Lubrication is very important
Lubrication is very important

There is no preservative grease in the sealed bearing from the factory. There is no need to change the lubricant in such parts immediately after purchase. Manufacturing companies always lubricate the bearing with the material that is required for it. All claims to the contrary are a driver's fable.

6. Any lubricant is suitable for the bearing

Any lubricant will not work
Any lubricant will not work

Lubricants vary greatly in composition. Therefore, many are simply not compatible with each other. Any mixing can cause the grease to become too thick or too thin. Moreover, each type of bearing requires a very specific type of lubrication.

7. Lubrication will solve the problem of noise

No amount of lubrication will help
No amount of lubrication will help

In 9 out of 10 cases, bearings in a car begin to make noise due to their deformation. Therefore, no lubricant will help here. The noise problem is not solved by replacing the lubricant, but by replacing the entire bearing with a new one.

Continuing the topic, read about what are the consequences for thosewho drives winter tires in summer.

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