How to repair and maintain automobile wheel bearings

How to repair car wheel bearings:

Hub bearings are important moving parts for automobiles. The hub axle bears the burden of reducing the frictional resistance during the operation of the chassis and maintaining the normal driving of the car. If the hub bearing fails, it may cause noise, bearing heat, etc., especially the front wheel is more obvious, which may lead to dangerous phenomena such as out of control. Therefore, the hub bearings must be maintained on schedule.

Inspection of wheel bearings:

(1) When checking the tightness of the hub bearing, firstly, the axle of the wheel at one end of the wheel of the car to be inspected is erected, and the vehicle is safely framed by means of a vehicle stool, a wooden cover, and the like.

(2) Turn the number of wheels to be inspected by hand to see if the rotation is stable and there is abnormal noise. If the rotation is not smooth and there is friction, the brake part is not normal; if there is no noise, the rotation is not smooth and it is loose when it is tight, indicating that the bearing part is not normal. The hub should be removed when the above abnormality occurs. For small cars, when inspecting the hub bearings, hold the upper and lower sides of the tires with both hands, and pull the tires back and forth with both hands and repeat them many times.

(3) Inspection of the brakes. Usually when inspecting the hub bearing, check the wheel brake device. If there is oil on the inside of the tire, it may be caused by oil leakage from the brake cylinder or brake hose. The cause should be identified and eliminated.

How to maintain car wheel bearings:

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

(2) Remove the tire nut and tire. If it is a disc brake, remove the brake and use it to remove the lock ring or lock pin.

(3) Remove the hub with a special tool;

(4) scrape off the old grease in the bearing, journal and hub cavity, clean the hub bearing and journal with cleaning agent and wipe dry with cloth, and finally wipe the inner cavity of the hub with cloth;

(5) Check the hub bearing and the bearing race, and find that there are cracks, fatigue peeling and loose bearing rollers, etc., the bearing should be replaced;

Automobile wheel bearing repair and maintenance is of great significance for automotive wheel bearings. Many users have gradually discovered that product maintenance and maintenance play a key role in the use and life of the product. I believe that in the future, users will not only care about the characteristics of the product itself, but also pay attention to product maintenance and maintenance.
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Drawn cup needle roller bearing standard

Drawn cup needle roller bearings standard:

Metric series: HK, BK, F, FH, FY, MF, MFH, MFY; TA..Z, TLA..Z, TAM, TLAM, YT, YTL.

Inch series: SCE, BCE, SCH, BCH, SN, B, BH, M, MH, BA, Z, BHA, Z, BAM, BHAM, YB, YBH.

 RS------ is a sealing ring; P------- is a sealing ring with English system; PP------ is two sealing rings with English system; ASI/OH- --for oil hole; HK, BA, TA..Z--perforated drawn cup needle roller bearings

BK, TAM, TLAM--sealing type drawn cup needle roller bearings

F--punched punched outer ring full complement needle roller bearing

FY, YT--perforated stamping outer ring full complement needle roller bearing (oil limit)

FH, YTL--perforated stamping outer ring full complement needle roller bearing (heavy series)

MF--sealing type stamped outer ring full complement needle roller bearing

MFH--Closed type stamped outer ring full complement needle roller bearing

SCE--punch type drawn cup needle roller bearing

BCE--sealing type drawn cup needle roller bearing

SCH--Punch type drawn cup needle roller bearing

BCH--sealing type drawn cup needle roller bearing

SN--punch type stamped outer ring full complement needle roller bearing

B--punched punched outer ring full complement needle roller bearing

BH--Punch type punched outer ring full complement needle roller bearing (heavy series)

M--Clead type stamped outer ring full complement needle roller bearing

MH--sealed stamped outer ring full complement needle roller bearing (heavy series)

The outer ring of the drawn cup needle roller bearing is statically fitted with the bearing housing and does not require an axial fixing device. The bearing function can be fully maintained even under high speed and heavy load conditions. In addition, due to the large storage capacity of the grease, the grease can be dispensed for a long time, and the needle roller bearing of the drawn outer ring can be flexibly rotated for a long time, and the equipment runs smoothly. It is believed that the standard understanding of drawn cup needle roller bearings can help users to provide a very great role in product selection.
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