BONOSS 2023 Volvo XC90 wheel bolts won’t stuck in the wheel hub after driving. BONOSS 2023 Volvo XC90 wheel bolts are made of SCM440 steel alloy, while common wheel bolt materials are iron, aluminum alloy, titanium alloy, steel alloy, etc. Easy to deform the material is mainly aluminum alloy after intense driving plus the torque generated by the acceleration of the car will easily cause the deformation of the wheel bolt, resulting in the wheel bolts stuck in the hub assembly. For your safety please choose alloy steel or titanium alloy 2023 Volvo XC90 wheel bolts.
“Had to use a grinder to get the spacer unstuck from my wheel hub because the bolts provided got rounded off from the heat so i was unable to remove the spacer and stripped the bolts”
2023 Volvo XC90 wheel bolts need to apply a certain amount of preload during installation. The preload can prevent loosening, but not with the maximum torque to ensure that 2023 Volvo XC90 wheel bolts will not fall off because applying too much torque will lead to permanent deformation of the connection under the action of external force. On the other hand, it will make 2023 Volvo XC90 wheel bolts be stretched and deformed, threads will slip, and preload will be reduced, resulting in breakage.
Do not try to remove any part immediately after intense driving, the first is due to a certain degree of deformation caused by the thermal expansion and contraction of the metal, and the removal of the metal after expansion will easily cause deformation. The second is because removal and assembly at high temperatures will likely cause scalding.
Are 2023 Volvo XC90 Wheel Bolts Strong Enough?
The goal of pursuing light weight is feasible, but the premise is that the parts are strong enough. The aluminum alloy 2023 Volvo XC90 wheel bolts in the market are lighter than iron and steel alloys in terms of weight, but the performance as a key component is not ideal. The physical properties of aluminum alloy determine its low hardness, lack of impact resistance, poor thermal stability and easily deformed.
And 2023 Volvo XC90 wheel bolts as a key component of torque take-up is not suitable for using aluminum alloy material, shear force and stress is a big problem for aluminum alloy. Steel alloy and titanium alloy are ideal materials. 2023 Volvo XC90 wheel bolts made of SCM440 can reach 1282 MPa in strength and 12.9 grade, which can easily cope with shear force and torque.
2023 Volvo XC90 wheel bolts are printed with the number 12.9, referring to the bolt grade and bolt strength used in certain applications. 2023 Volvo XC90 wheel bolts produced by BONOSS have been verified by SGS Germany’s authoritative testing agency under ISO standards to prove that the 2023 Volvo XC90 M14x1.5 wheel bolts have an average of 392 in HV10 hardness test, which belongs to 12.9 grade high strength bolts.
The number before the dot is the ultimate tensile strength in MPa divided by 100, the number after the dot is the multiplicative ratio of yield strength to ultimate tensile strength. For example, if the nominal (minimum) ultimate tensile strength of a 12.9 performance grade wheel bolt is 1200 MPa, the tensile yield strength is 0.9 times the ultimate tensile strength or 0.9 (1200) = 1080 MPa.
The ultimate tensile strength is the tensile stress at which the wheel bolt fails. Tensile yield strength is the stress at which the wheel bolt yields under tension over the entire bolt cross-section and undergoes permanent deformation (elongation that does not recover after removal of the force) of 0.2% offset strain. If the wheel bolt is subjected to tension in excess of its yield strength, the yielding of the net root section of the wheel bolt will continue until the entire section begins to yield and exceeds its yield strength. If the tension increases, the bolt will fracture at its ultimate strength.
What Do We Need to Pay Attention to Removing and Installing 2023 Volvo XC90 Wheel Bolts?
When removing, pay attention to loosening evenly diagonally and let the wrench be perpendicular to the 2023 Volvo XC90 wheel bolts to avoid wheel bolts being subjected to bending torque, which in turn will cause 2023 Volvo XC90 wheel bolts to break. When installing, pay attention to installing diagonally and tighten diagonally evenly in parts, do not tighten at once.
After dropping the jack and landing the wheel, use a torque wrench to tighten the 2023 Volvo XC90 wheel bolts to the specified torque, generally between 110-140 N.m. Insufficient torque may cause the 2023 Volvo XC90 wheel bolts to slip, and too much torque may cause the threads to fracture. Using a torque wrench will ensure that the correct torque is applied to the 2023 Volvo XC90 wheel bolts.
Many personal tire repair stores use an air impact wrench for removal and installation, the momentary torque helps to remove the parts, but too much momentary torque may cause the 2023 Volvo XC90 wheel bolts to stretch to the point of yield and eventually plastic deformation. Every removal is a detriment to the 2023 Volvo XC90 wheel bolts, the threads will wear with friction, and less friction means less clamping force.
It is generally recommended to check and replace the 2023 Volvo XC90 wheel bolts after more than ten times of removal and installation. When installing 2023 Volvo XC90 wheel bolts, many people may use them with Loctite, blue Loctite is available, but red is not recommended. Of course, BONOSS does not recommend adding any liquid lubricant when installing 2023 Volvo XC90 wheel bolts, the engagement between the threads is needed for friction to work, and reducing friction may cause the 2023 Volvo XC90 wheel bolts to loosen.
How to Prevent the Wheel Bolts from Loosing?
When the car is running, the wheel is subjected to alternating load, and the 2023 Volvo XC90 wheel bolts will also be subjected to continuous shock and vibration. In this case, at a certain moment, the friction between the 2023 Volvo XC90 wheel bolts and bolt holes disappears, and wheel bolts have the possibility of loosening. In addition, when the car is accelerating and braking because the wheel rotation direction is opposite to the tightening direction of the 2023 Volvo XC90 wheel bolts, it will generate a “loosening torque”, which will cause the wheel bolts to loosen.
Therefore, wheel bolts must have a reliable self-locking anti-loosening device. Nowadays, the majority of wheel bolts use frictional self-locking anti-loosening devices, such as adding elastic washers, 2023 Volvo XC90 wheel bolts processed into matching tapered or spherical surfaces, using spherical spring washers, etc… They can compensate for the gap caused by wheel bolts in the moment of shock and vibration, and also prevent the loosening of wheel bolts.
BONOSS 2023 Volvo XC90 wheel bolts use forged steel alloy technology with a grade of 12.9, using elastic washers with a different seat to compensate for gaps caused by shocks and vibrations and to better lock the wheel. At the beginning of the wheel bolts classification, 10.9-grade wheel bolts were more common in sedans, and 12.9-grade wheel bolts were suitable for trucks, but with the update of aftermarket 2023 XC90 wheel bolts, higher-grade wheel bolts mean more safety.
Reference List:
SGS Test Report for BONOSS Extended Wheel Bolts M14x1.5 Hardness Test (No: GZIN1911061634ML)
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