uea-inc Which company? I've seen their slip ring products, but they don't seem to be used

Introduction uea-inc Which company? Seeing their slip ring products, it seems that they are not used in China. It appears to be a British company, but they have an agent in Shanghai. Mainly used for high

uea-inc Which company? I've seen their slip ring products, but they don't seem to be used

It appears to be a British company, but it has an agent in Shanghai. It is mainly used for high-speed and large-scale wind power. We are not an industry insider and do not know if it has a significant market share.

There are also many domestic slip rings! There are several in Jiangsu, Zhejiang and Shanghai! There are Kehao and Junyi Electric in Shanghai. You can search online to find out how many there are.

Wheel hub bearings are important operating elements of automobiles. The wheel hub shaft is responsible for reducing the friction resistance of the chassis during operation and maintaining the normal driving of the car. If the wheel hub bearing fails, it may cause noise, heating of the bearings, etc., especially the front wheel, which can easily lead to damage phenomena.dangerous such as loss of direction. Therefore, wheel hub bearings must be maintained on time.

1. Inspection of wheel hub bearings

(1) When checking the tightness of the wheel hub bearings, first install the wheel axle to one end of the wheel hub of the car to inspect and use a car stool to cover the car. Use wood and other utensils to install the car safely.

(2) Turn the inspected wheel several times by hand to see if it turns smoothly and if there is any abnormal noise. If the rotation is not smooth and there is a friction sound, it means that the brake part is not normal; if there is no noise, the rotation is not smooth and it is tight and loose, it means the bearing part is not normal. When the above abnormal phenomena occur, the wheel hub should be disassembled and inspected.

For small cars, when checking the wheel bearings, hold the upper and lower sides of the tire with both hands, pull the tire back and forth with both hands, and repeat this several times. If this is normal, there should be no feeling of play or blocking; If there is an obvious feeling of play in the swing, the wheel hub should be disassembled and inspected.

(3) Brake inspection. Usually, when checking the wheel hub bearing, the wheel braking device is also checked. If there are oil stains inside the tire, it is probably caused by oil leaking from the brake cylinder or brake oil pipe. discovered and eliminated in time.

2. Maintenance of wheel hub bearings

Before disassembling the wheel hub, preparations for maintenance of the wheel hub should be made, the car should be parked stably, and the axle should bebe adjusted to ensure the safety of maintenance operations.

(1) Remove the decorative cover and dust cover from the hub shaft head;

(2) Remove the tire nut and tire, taking care not to damage the tire threads; bolts. If it is a disc brake, remove the brake and use pliers to remove the lock ring or lock pin.

(3) Use special tools to remove the wheel hub;

(4) Scrape off the old grease in the bearing, journal and hub cavity, and clean the hub bearing and shaft. with the neck of the cleaning agent and wipe with a cloth, and finally wipe the inner cavity of the wheel hub with a cloth.

(5) Check the wheel hub bearing and raceway. If cracks, fatigue spalling, and loose bearing rollers are found, the bearings should be replaced. If bites are detecteddetected on the bearing race, the bearing must also be replaced.

(6) Check the fit between the inside diameter of the bearing and the journal. The adjustment deviation should not exceed 0.1 O mm. When measuring the trunnion, it should be located in the upper and lower parts of. the vertical floor (this is the largest wearing part) Measurement. If the fit clearance exceeds the specified usage limit, the bearing should be replaced so as to restore the normal fit gap. It is not permitted to make burrs or pitting on the journal to reduce the gap.

(7) After all parts meet the requirements, apply grease to the inner bearing and place it into the wheel hub.

(8) When applying grease to the inner cavity of the bearing, care must be taken to press the grease into the bearing until the grease emerges from the other side of the bearing. Applya thin layer of grease on the hub cavity and shaft head cap to prevent rust. Be careful not to apply too much grease into the hub cavity, otherwise it will affect heat dissipation and braking.

(9) Reinstall the wheel hub and outer bearing onto the journal, tighten the shaft head adjusting nut by hand, then use a shaft head wrench to tighten the adjusting nut to the specified torque. After tightening the nut, you need to turn the wheel hub left and right several times to see how the bearing is installed. On the other hand, make sure that the bearing and seat ring fit properly when rotating. At this time, the sealing of the bearings is appropriate and the wheels can rotate freely without feeling axial play.

(10) Finally, install the lock plate, fixing nut, tire, dust cover, decorative cover and other parts in order.

(11) After the wheel hub bearing is adjusted, drive a certain mileage (about 1 km), stop the vehicle for inspection, and wipe the wheel hub temperature. If it's hot, it is. because the bearing has been over-tightened and needs to be readjusted appropriately. Loosen the bearing seal.

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