Textured　surfaces　have　been　widely　applied　in　the　field　of　engineering　for　friction　reduction,　but　research　on　the　effects　of　different　texture　design　parameters　on　the　wear　and　fatigue　resistance　of　bearing　steel　remains　insufficiently　explored.　In　order　to　improve　the　anti-wear　and　anti-fatigue　performance　and　prolong　the　service　life　of　bearing　steel,　surface　texturing　technology　was　applied　to　fabricate　textured　GCr15　bearing　steel　materials.　In　this　work,　micro-groove　surface　texture　was　designed　by　hydrodynamic　theory,　then,　it　was　fabricated　on　the　GCr15　bearing　steel　surface　using　nanosecond　laser　processing.　The　depths　(15 μm,　30 μm),　spacing　(100 μm,　200 μm,　300 μm),　and　friction　angles　(30°,　60°,　90°)　of　micro　groove　were　selected　as　the　primary　parameters　for　micro　groove　fabrication.　The　friction　and　wear　tests　and　rolling　contact　fatigue　(RCF)　tests　were　conducted　to　investigate　the　lubrication　tribological　properties.　The　results　indicated　that　micro-groove　spacing　of　300 μm　significantly　reduces　the　coefficient　of　friction　(CoF),　depth　of　30 μm　produces　a　higher　hydrodynamic　pressure,　and　friction　angle　of　60°　has　a　lower　CoF　value.　Compared　to　the　untextured　samples,　the　RCF　life　of　micro-groove　surface　texture　sample　is　improved,　and　the　median　RCF　life　is　increased　by　36.5%.　And　it　could　be　attributed　to　the　dispersion　effect　of　micro-groove　surface　texture　on　stress　concentration.　The　findings　indicate　that　a　well-designed　micro-groove　structure　can　enhance　the　fluid　dynamic　pressure　lubrication　effect　to　a　certain　degree.　In　comparison　to　smooth　surface　specimens,　those　with　micro-grooves　exhibit　reduced　friction.　©　IMechE　2025.