Are wheel bolts strong enough to wear the giant load during driving? What if my wheel bolts seem to be broken? What cause the 2022 BMW i4 wheel bolts to break? How to select high-quality wheel bolt kits for my 2022 BMW i4? How to decide on the new wheel bolts for my aftermarket wheels of the 2022 BMW i4? Do you have these worries? Let’s see some working principles of wheel bolts, and discuss the useful solution against bolt breaking.
What Cause the 2022 BMW i4 Wheel Bolts To Break?
The breaking of wheel bolts will cause terrible damage to your 2022 BMW i4 – the loosen of wheels, or even doing harm to the axle hub. So what are the common reasons for the breaking? The quality of wheel bolts and the torque applied to installation are responsible. When it comes to the quality of wheel bolts, there are several concepts to figure out – Elastic Deformation, Plastic Deformation, and Yield Strength. Elastic Deformation is a temporary deformation of a material’s shape, in this case, is the temporary deformation of wheel bolts. It can be self-reversing after removing the force. Within the elastic limit, wheel bolts can keep their shapes to ensure safe working. Once the force pass this limit, which is called the ultimate yield strength, the shape of wheel bolts will go into plastic deformation – the shape cannot self-reverse after removing the load. Once the plastic deformation happens, wheel bolts fail to work. That is to say, ultimate yield strength is the vital index to judge a high-performance wheel bolt. The higher the index is, the higher load wheel bolt can wear. The ISO standard is formulated to detect and evaluate the capability of whee bolts, of which grade 12.9 is the best. When you’re browsing aftermarket wheel bolts for your 2022 BMW i4, don’t forget to take these indicators into consideration.
Another aspect that may lead 2022 BMW i4 wheel bolts to break is the excessive or insufficient torquing to the wheel bolts when installing. There’s also a concept to be mentioned – Clamp Load. Clamp Load is created by the tightening wheel bolts and the mated surfaces. The friction between the two surfaces and the force between wheel bolts and clamping surfaces(Clamp Load) makes surfaces resist the movement. This is just how the bolt joint works. However, if there is variation in the system, the balance will be broken. The Clamp Load can be measured by a torque wrench, but the universal use of impact wrench causes 3 to 5 times of specified wheel bolts torque. And adding the lubrication and anti-seizing compounds to the thread of studs will intensify this dread torque.
If there are items like rust between the clamping surfaces, the friction cannot reach and the balance between bolt torque and Clamp Load will also be changed. The low quality of wheel studs, wheel bolts, and the impact wrench may increase the risk of loosening. Make sure you purchase the studs and bolts with the hard anodizing finish and are proved by 192H neutral salt test, and the impact wrench is made of great material and can supply the moderate air pressure, otherwise, a Soft Joint will be caused.