【Material & Feature】 Wheel hub is made by high strength aluminium alloy forging, which can perfet replace for original factory part. Class 12.9 wheel studs is the highest grade of bolts produced that made by SCM435 alloy steel (Intensity 1220Mpa Hardness 39-44HRC).
【Bearings' Advantage Than Others】① JAVIK use stainless steel cover as seal cover, not ordinary rubber cover. ② Built-in steel ball is G10Z4 and the workmanship of bearing use thick material. ③ With 100% shake test and quality test, this bearings perfect replace for original factory part. etc.