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How to maintenance truck wheel hub Double angular contact ball bearings?

584 Published by Aug 22,2018

To maintenance truck wheel hub Double angular contact ball bearings

Before preparing the wheel hub, prepare the wheel maintenance, stop the car and set up the axle to ensure the safety of maintenance work.

[1] Remove the decorative cover and dust cover of the hub shaft.
[2] Remove the tire nut and tire, taking care not to hurt the thread of the tire bolt. If it is a disc brake, remove the brake and remove the lock ring or lock pin with a pair of pliers.
[3] Remove the hub with a special tool.

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[4] Scrape the old grease in the truck wheel hub Double angular contact ball bearings, journal and hub cavity, clean the hub bearing and journal with a cleaning agent and wipe dry with a cloth. Finally, wipe the inner cavity of the hub with a cloth.
[5] Check the truck wheel hub Double angular contact ball bearings and the bearing race, and find cracks, fatigue peeling and loose bearing rollers. Replace the truck wheel hub Double angular contact ball bearings. If there is a pitting on the bearing race, the bearing should also be replaced.
 [6] Check the matching between the inner diameter of the truck wheel hub Double angular contact ball bearings and the journal, and the matching clearance should be no more than 0.10mm. When measuring the journal, it should be measured at the upper and lower parts of the vertical ground, where it is the largest wear point. If the fit clearance exceeds the specified service limit, the truck wheel hub Double angular contact ball bearings should be replaced to restore the normal fit clearance. It is not allowed to burr and pock on the journal to narrow the gap.

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[7] After all the parts meet the requirements, apply the grease to the inner truck wheel hub Double angular contact ball bearings and put it into the hub.
[8] When applying grease to the truck wheel hub Double angular contact ball bearings inner cavity, be careful to squeeze the grease into the bearing until the grease emerges from the other side of the bearing. Apply a thin layer of grease to the hub cavity and the shaft cap to prevent rust. Be careful not to apply too much grease in the hub cavity, otherwise it will affect heat dissipation and braking.

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[9] Put the hub and outer truck wheel hub Double angular contact ball bearings back on the journal, screw the shaft adjusting nut by hand, and then tighten the adjusting nut with the shaft wrench according to the specified torque. After tightening the nut, turn the hub a few turns to see if the bearing is installed. On the other hand, the bearing and the race are properly matched by rotation. At this time, the bearing tightness is appropriate, and the wheel is free to rotate without feeling an axial gap.
[10] Finally, the components such as the locking piece, the fixing nut, the tire, the dust cover and the decorative cover are sequentially installed.

If you want to buy the truck wheel hub Double angular contact ball bearings or any other bearings,please contact me!

Contact: Miya
Email: ntn@zyslbearing.com
Skype: ntn@zyslbearing.com
MP/Whatsapp: +8618363031398
Wechat:18363031398

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