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The importance of grease on wheel bearing can never be overemphasized, greasing the wheel bearing provides lubrication and prevents corrosion. Without greasing, the bearing and the parts around it can rust, and this will affect the bearing’s performance.Most lubricating greases for automotive wheel bearings must meet the NLGI GC-LB or SAE J310 requirements. Both of those specifications require that the grease must operate over a temperature range of -40 °C (-40 °F) to 160 °C (320 °F). Thi …