The evaluation technique requires that when the slippage torque of the M12 bolt reaches one hundred fifty N·m, the bolt have to no longer slip or break.
Under a load of 4900 N, the bolt need to now not come out. The slippage torque of the M14 bolt need to be 250 N·m when the bolt does no longer slip or break.
For the bolt pull-out test, first mount the hub bearing unit onto the take a look at setup. Then observe a 4900N pressure alongside the bolt's axial path at a fee of 2mm per second. Check if the bolt pulls out relative to the bearing flange. Keep making use of axial pressure to the bolt till it comes loose, then report how the pressure adjustments till pull-out and notice the most pressure value.
For the bolt slippage test, the hub bearing unit is installed on the test device, and a torque of 150 N·m is applied to the bolt.
The thread is observed to see if it is damaged or if the bolt rotates relative to the bearing flange.
FAQ
Q: How do you ensure your quality?
A: We use good quality 55# steel from big steel mills only, all our suppliers run IATF 16949 System. Products processed through forging, CNC turning, heat treatment, CNC drilling, CNC grinding with complete inspection process, 100% inspected after final assembly. We keep all inspection records and the records help Quality review and Product traceability. We also have series inspection equipments and life-test machine, help us development.
Q: How long is the warranty period of the wheel hub assembly? What does the warranty scope cover?
A:The warranty period of regular products is 24 months or 50,000 kilometers (whichever comes first). The warranty scope covers problems such as abnormal noise, jamming and bearing failure caused by product manufacturing defects. Free replacement service is available for non-human damage..
Q: What is the product packaging method? Can it meet the needs of long-distance sea transportation?
A:The standard packaging is neutral box, which can effectively prevent shock and scratch. If sea transportation is needed, we can additionally provide export standard corrugated box + pallet reinforcement packaging, which is moisture-proof and rust-proof, fully meeting the requirements of long-distance transportation.
Application
This wheel hub unit adopts an built-in design, seamlessly combining the bearing, hub, sealing ring and ABS sensor ring (if equipped). It extensively simplifies the automobile meeting procedure and reduces the chance of installation errors. The built-in shape now not solely enhances the connection balance between elements however additionally reduces noise and vibration all through driving, offering a smoother using trip for the vehicle. It is broadly appropriate for household cars, SUVs and mild industrial vehicles.
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