How to tell the quality of KOYO bearing lubricants

Bearing lubricant is the main factor determining whether KOYO bearings can work normally for a long time. How should we distinguish the quality of KOYO bearing lubricants?

First, judge according to color: normal KOYO bearing lubricant is brown and blue black. If it is milky yellow, it means that the lubricating oil is mixed with diesel or water and should be replaced in time. If it is displayed in dark black, it means that the oil has deteriorated and must be replaced in time.

Second, use simple tools: Mix the KOYO bearing lubricant to be evenly distributed and then drop it on white paper (preferably filter paper) to form oil spots. The oil spots will gradually spread from the center for about 2 to 3 hours. Form three concentric rings. The state of the oil can be discerned based on the color, width and shape of the three areas.

Third, according to the feel of the hand: take a little KOYO bearing oil from the oil low shell, apply it on the finger, and use the index finger and thumb to honed. If you feel that there is impurities in the oil or that it is not sticky like water, or even smells astringent or sour, it means that the oil has deteriorated. If you can see the tiny shiny metal grinding on your fingers after honing, it means that the engine has serious wear and tear, and you need to replace the wear parts related to the repair and repair in time.

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Wheel KOYO bearing installation, use common sense

The largest number of wheel bearings for cars used in the past was the use of single row tapered roller or ball bearings in pairs. With the development of technology, car hub units have been widely used in cars. The range and use of hub bearing units is increasing, and has now reached the third generation: the first generation consists of double row angular contact bearings. The second generation has a flange for fixing the KOYO bearing on the outer raceway. The KOYO bearing can be simply placed on the axle and fixed with a nut. Make the maintenance of the car easier. The third-generation wheel bearing unit is equipped with KOYO bearing unit and anti-hold brake system. The hub unit is designed with an inner flange and an outer flange, the inner flange is bolted to the drive shaft, and the outer flange mounts the entire KOYO bearing together.

Worn or damaged wheels KOYO bearings or hub units can cause unsuitable and costly failures in your vehicle's journey, even causing damage to your safety. Please pay attention to the following items during the use and installation of the hub bearing:

1. In order to ensure maximum safety and reliability, it is recommended that you always check the wheel KOYO bearing regardless of the length of the car - pay attention to whether the KOYO bearing has early warning signs of wear: including any friction noise or suspension combination wheel Unnormal deceleration during cornering.

For rear-wheel-drive vehicles, it is recommended to lubricate the front wheel hub KOYO bearing when the vehicle travels to 38,000 km. When replacing the brake system, check the KOYO bearing and replace the oil seal.

2. If you hear the noise from the bearing parts of the hub, first of all, it is important to find the location where the noise occurs. There are many moving parts that may produce noise, or some rotating parts may come into contact with the non-rotating parts. If it is confirmed that the noise is in the KOYO bearing, the KOYO bearing may be damaged and needs to be replaced.

3. Because the working conditions of the front wheel hub causing the failure of KOYO bearings on both sides are similar, it is recommended to replace them in pairs even if only one KOYO bearing is broken.

4, the wheel bearing is more sensitive, in any case need to use the correct method and the right tool. KOYO bearing components must not be damaged during storage and installation. Some KOYO bearings require a large pressure to press in, so special tools are required. Be sure to refer to the car manufacturer's instructions.

5, when installing KOYO bearings should be in a clean and tidy environment, the entry of fine particles into KOYO bearings will also shorten the service life of KOYO bearings. It is very important to maintain a clean environment when replacing KOYO bearings. It is not allowed to hit the KOYO bearing with a hoe. Note that the KOYO bearing should not fall to the ground (or similarly handled improperly). The condition of the shaft and the housing should also be checked before installation. Even slight wear can cause poor fitting and cause early failure of the KOYO bearing.

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