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Principles of tightening the hub nut, double-row ball bearing, split

przemyslw 158991 35
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
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  • #31 15703630
    jmietek
    Level 12  
    The bolt securing the rim is 12 mm, and if you sometimes have to get tired to unscrew and the thread does not break off
    If you tighten it weakly, it will soon become loose.
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  • #32 15703751
    krau
    Level 24  
    jmietek wrote:
    The bolt securing the rim is 12 mm, and if you sometimes have to get tired to unscrew and the thread does not break off
    If you tighten it weakly, it will soon become loose.



    This friend probably has no strength in his hands at all ... It is not a big screw at all.
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  • #33 15707600
    przemyslw
    Level 15  
    jmietek wrote:
    The bolt securing the rim is 12 mm, and sometimes you have to get tired to unscrew it

    There is a 38 wrench screw on the axle with a 47cm arm, a meter pipe and 50 kg? the emphasis had just gone.

    And I was tightening (the key arm 47cm and 50-55kg?) To the first resistance (and 1/8?) On the brake disc with the wrench itself. I did not pat the nut and made a scratch on the axle and nut. I drove 3 km, then 10 without braking and she got a tiny temperature, so I returned by almost 1/8 and after driving 35 km the heating is minimal (30-40oC?). The first time, however, I tightened too much, I know I should not pull back, but no experience. So the question is still how to tighten the bearing on the hub. Because if these rings should touch, there would be no resistance when turning the brake disc. Unless an assembly error, which I doubt.
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  • #34 15707623
    ociz
    VIP Meritorious for electroda.pl  
    The rings will touch 100%. If it were to be what you think, the tightening torque would have to be around 10-20Nm, which is as much as with your bare hand.
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  • #35 15707654
    darfur5
    Level 35  
    30-40 degrees is no temperature for the bearing. There is nothing to worry about the lubricant, even if the worst of it will hold out, if the signs are right then it should be almost fine, I repeat! almost good.
  • #36 21346375
    aphofis1963
    Level 11  
    When buying a bearing, some manufacturers specify the tightening torque. In the Grande Punto 1.4 8V, the purchase of a SNR R158.44 bearing specified 240 Nm.
    When buying a bearing, pay attention to the magnetic ring, required if ABS is fitted to the car, and of course fitted with the correct side. Double check before fitting.
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Topic summary

The discussion revolves around the proper tightening techniques for a double-row ball bearing hub nut, emphasizing the importance of torque specifications. Users suggest that the tightening force can vary significantly based on the vehicle and bearing type, with some recommending a torque of at least 200Nm. The conversation highlights the need to follow manufacturer specifications, as excessive tightening can damage bearings, particularly in specific models like Subaru. Participants also discuss the challenges of using non-standard bearings and the implications of using cheaper replacements. Various methods for estimating proper torque, such as marking the nut and washer, are shared, along with insights into the bearing's internal mechanics and the importance of maintaining adequate clearance.
Summary generated by the language model.
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