Does loose profile bearings necessarily lead to imbalance?

Elasticity is not enough, indicating that the heat treatment requirements are not up to standard, that is to say, the mechanical properties are not good, the hardness should be offset, not wear-resistant, easy to deform, etc.

Yes, once it loosens, it will affect the balance.

Not necessarily, but if it is loose, it may be.

Definitely, be sure to repair it in time.

Yes, yes, you must go to repair it as soon as possible.

Yes, it will be worse in the long run, so go see it as soon as possible.

It depends on which side of the imbalance is, but it is generally advisable to check it.

Yes, it is advisable to check it in a professional place to avoid breakdowns during driving.

Yes, be sure to check it out at a car repair shop.

Yes, it is recommended that you go to the repair shop for maintenance.

When the front wheel bearing of the car is loose, the brake will produce noise, resulting in abnormal tire wear, and in severe cases, the wheel will fall off.

Generally, there will be a chirping sound, deviation and other phenomena, which is a certain risk, it is recommended to overhaul it in the 4S store.

There is an impact and the impact is very large, and the screws that fix the bearing are easy to fall off during driving, which will lead to directional failure and cause major traffic accidents.

When the bearing is not good and the rotor is not in the center of the stator, it may cause the current to be unbalanced, and the reactance of the part of the core with a large air gap decreases, and the corresponding winding current should be increased.

The current swing is obvious, and it is necessary to detect whether the rotor is broken!! The aluminum strips of the squirrel cage rotor can also break.

It's normal for the bearings to be slightly loose, check their voltage How did their motors burn when you repaired them? It may be that there is a problem with the voltage, and there is a problem with the air compressor, which belongs to their cause.

What you said is also part, the other is to detect whether the rotor has bending and abrasion marks, in the case of ensuring that the offline line is idling correctly, a certain phase current is too large, it is likely that the rotor abrasion reduces the overheating resistance of the enameled wire

It won't loosen a little, and it will fall off as soon as you change it for a long time. It's best to change it, if you don't change it, you will eat the tire, and soon a tire will be gone [There is a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

Hello, if it is serious, it will fall, and it is easy to fall off at high speed, this is dangerous with it, it is recommended to go to the repair shop to check it, I hope it can help you, welcome to ask, the car master wishes you a happy National Day! [If you have a problem with the car, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

This kind of words are possible, and it is more dangerous to run at high speed or fast, if there is looseness, it is recommended that you go to the repair shop as soon as possible for inspection and maintenance My answer I hope you can be satisfied I wish you a happy life [If you have a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

Hello, loose to a certain extent. [If you have a problem with the car, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

Hello car owners! Generally speaking, bearings are broken to a certain extent and bite to death! [If you have a problem with the car, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

Wheel deformation may cause slow wheel tire bleats.

Turning on high-speed shaking, etc., so it is recommended to repair the wheel hub in time if it is deformed.

Generally, the damage of the wheel hub is that the speed of passing through the pit is too fast, resulting in the deformation of the wheel hub, surface damage and corrosion of the road teeth. The main stress point of the hub is the spoke, as long as the spokes are not bent or deformed, it will not affect the safe use. Rim deformation can be corrected.

: Aluminum alloy is a metal substance, a wire bent and then returned to a straight line, two or three times will be broken, not to mention such a large hub. The wheels were forcibly restored to their original state, and although the appearance was the same as new, the internal organization was already fragile.

If the position repaired during driving is hit, the wheel hub will directly break and cause a serious accident.

Put the recessed part on the sponge, cloth, etc., and then use a hammer to smash the recessed part flat. The pits after smashing will definitely be very uneven. It doesn't matter, you can use putty (putty), which is used for leveling when painting sheet steel.

After repairing the uneven place, use sandpaper to hairshoot the inside of the wheel to prepare for the next step of painting.

Place in the sun and let the putty dry. The next step is the same as painting the wheels. Because the original wheel is the color of the aluminum alloy itself, it cannot be achieved by any paint.

So there is only a whole spray. Paint the inside of the wheel with automatic paint close to the original color of the wheel. After the paint dried, a "new" wheel was born.

As *** said, it is not recommended to repair it, and it will be greater to change it to a new one.

Slight deformation of the wheel hub of the car will cause the tire to not match the wheel hub, resulting in gaps. Unstable tire pressure leads to tire breakage.

Expansion: 1. Introduction:

In the past, wheel bearings for passenger cars were mostly used in pairs with single row tapered rollers or ball bearings. With the development of technology, sedans have widely used sedan wheel hub units. The range of use and usage of the hub bearing unit is growing day by day, and it has developed to the third generation:

The first generation consists of double row angular contact bearings. The second generation has a flange on the outer raceway for holding the bearings in place, which can be simply sleeved to the axle and fixed with a nut. It makes it easy to repair the car.

The third-generation hub bearing unit is a combination of the bearing unit and the anti-lock brake system. The hub unit is designed to have an inner flange, the inner flange is bolted to the drive shaft, and the outer flange mounts the entire bearing together.

2. Wheel hub development.

In the past, wheel bearings for passenger cars were mostly used in pairs with single row tapered rollers or ball bearings. With the development of technology, sedans have widely used sedan wheel hub units. The range of use and usage of the hub bearing unit is growing day by day, and it has developed to the third generation:

The first generation consists of double row angular contact bearings. The second generation has a flange on the outer raceway for holding the bearings in place, which can be simply sleeved to the axle and fixed with a nut. It makes it easy to repair the car.

The third-generation hub bearing unit is a combination of the bearing unit and the anti-lock brake system. The hub unit is designed to have an inner flange, the inner flange is bolted to the drive shaft, and the outer flange mounts the entire bearing together.

3. Wheel hub type.

The wheel hub is also called the rim. According to the characteristics and needs of different models, the surface treatment process of the wheel hub will also take different ways, which can be roughly divided into two types: baking paint and electric wheel plating.

The wheel hub of the ordinary model is less considered in appearance, good heat dissipation is a basic requirement, and the process is basically treated with baking paint, that is, sprayed first and then baked, the cost is more economical and the color is beautiful, and the maintenance time is long, even if the vehicle is scrapped, the color of the wheel is still unchanged. Many Volkswagen models have a surface finish for their wheels, such as Santana 2000, Xiali Junya, Times Pride, Southeast Lingshuai or Honda Odyssey. Some of the fashion-forward, sporty coloured wheels are also lacquered.

This type of wheel is moderate and has complete specifications.

Electroplating wheels are divided into electroplating silver plating, water plating and pure electroplating. Although the color of electroplating silver and hydroplating wheels is bright and vivid, the retention time is short, so it is relatively cheap and liked by many young people who pursue freshness, and the market is between 300 yuan and 500 yuan. Pure electroplating wheels, such as the original Buick GL8 produced by Shanghai GM, are pure electroplated wheels, which maintain color and luster for a long time, which can be said to be of high quality and high price.

Medium and high-end sedans such as Guangben and Audi mostly use pure electroplated wheels, ** about 800-900 yuan.

Hello, slight does not affect, I hope it can help you, thank you for your support to the car master, I wish you a happy life [If you have a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

Loose hub bearings can result: 1: The vehicle makes abnormal noise, and the friction between the bearing and the raceway causes the raceway indentation.

2. The car shakes badly, which leads to the loosening of other parts and affects the safety of exercise. Three:

If the bearing is loose, it is recommended to tighten the bolts to prevent the hub from falling off the shaft. Handmade, thanks for adopting!

No matter how loose the belt is, it will not cause abnormal noise of the motor bearing. are two unrelated systems. Are you talking about cars?

The half shaft of the car is deformed, and there will be a violent shaking phenomenon when running.

1. The deformation of the half shaft of the car will cause abnormal noise and bumps when running, and it will not be able to drive if it is heavy, and the car will deviate and shake violently.

2. The half shaft of the car is deformed, which will cause the tire to wear out for a long time.

3. The half-shaft, also called the drive shaft, is the shaft that connects the differential with the drive wheel. The half-shaft is the shaft that transmits torque between the gearbox reducer and the driving wheel, and its inner and outer ends have a universal joint respectively connected with the inner ring of the reducer gear and the hub bearing through the spline on the universal joint.

4. The half-shaft is used to transmit power between the differential and the driving wheel. The half-shaft of the ordinary non-disconnecting drive axle can be divided into three types: full floating, 3 4 floating and semi-floating according to the different forms of external support. If deformed, it is recommended to replace it immediately.

Common faults of propeller shafts.

Fault phenomenon. When the car starts, the body trembles and the impact sound of "cluck, cluck" can be heard; There is also a crashing sound when the speed of the vehicle changes or when driving at a high and low speed.

Cause of the failure. The reasons for the loose sound of the universal joint and spline of the transmission shaft are as follows: the flange connection bolts of the transmission shaft are loose; Long-term lack of oil causes the universal joint cross shaft and needle roller to wear loose or broken needle roller; The spline teeth of the transmission shaft and the spline groove of the universal joint sliding fork are worn loosely; Excessive wear of the spline teeth and flange spline groove of the second shaft of the transmission; The fixing bolts of the middle bearing hanger are loose.

Fault judgment and troubleshooting.

When the speed of the car suddenly changes during driving, there is always a knocking sound, most of which is due to the loose individual flange or universal joint shaft. It can be checked by shaking the transmission shaft up and down by hand or in a circumferential direction; Relax the hand brake, shake the brake disc by hand, if there is a loose amount, it indicates that the spline shaft of the second axis of the transmission and the flange spline groove are worn loosely; During start-up, there is always obvious sound and vibration, indicating that the fixing bolts of the middle bearing bracket are seriously loose; It sounds when starting and shifting, and it is more obvious when driving at high and low speeds, most of which are loose middle bearings or loose spline shafts and splines; When the above faults are serious, they should be dismantled and repaired.

Common faults of propeller shafts.

1. Loose transmission shaft, universal joint and spline.

The reasons for the loose sound of the universal joint and spline of the transmission shaft are as follows: the flange connection bolts of the transmission shaft are loose; Long-term lack of oil causes the universal joint cross shaft and needle roller to wear loose or broken needle roller; The spline teeth of the transmission shaft and the spline groove of the universal joint sliding fork are worn loosely; Excessive wear of the spline teeth and flange spline groove of the second shaft of the transmission; The fixing bolts of the middle bearing hanger are loose.

2. The transmission shaft is unbalanced.

1) The transmission shaft is bent and dented, resulting in unbalance during operation, causing swing and noise.

2) The transmission shaft is improperly installed, and the universal joint forks at both ends of the transmission shaft are not installed in the same plane. Or the original balance plate is not put back in place, which destroys the balance state, causing sound and vibration.

3) The connecting bolts of the gimbal joint disc are loose.

4) The fixing bolt of the middle bracket of the transmission shaft is loose.

3. Automobile drive shaft oscillation.

1) The transmission shaft is bent and deformed due to force and loses balance.

2) The universal joint fork is eccentric, which makes the transmission shaft run unbalanced.

3) The universal joint is worn, the spline tooth of the second shaft of the transmission and the spline in the fork of the transmission shaft casing fork are seriously worn, and the ball bearing of the second shaft is seriously worn.

4) The transmission shaft tube is bent or dented, and the balance piece falls off.

5) The transmission shaft is loosely connected with the rear axle.

If the transmission shaft has the above fault, it should be repaired in time and the symptoms should be solved.

The diameter of the shaft and the rolling bearing part becomes smaller, and the shaft rotates in the inner sleeve of the rolling bearing, so that the temperature rise of the bearing position is higher.

And this jitter that's going to happen, it's not stable.