Wheel Bearing Kit

（1）. Wheel Bearing Kit bearing +wheel hub unit + nut+ bolt
（2）. Applicable vehicle BMW X5 X6
（3）. Bearing Material Gcr 15
（4）. wheel hub unit Material 55#
（5）. Other reference no. OE: 31206779735
（6）. Bearing Hardness:
（7）. 59-62 HRC