What are the best alternatives to ball bearings for linear motion

Aluminum Extrusion for Linear Motion Bearings & Roller Glides tslot roller bearings Standard linear bearings each have a bracket lined with slippery PTFE pads that allow parts to slide on T-slot framing structures drive array controller failure slot 0 Tee slot fixing type : using DIN 931933 hex- headed bolts b S -B type Vee Bearings & Rails Linear Bearings & Shafts Combined Roller Bearings &

tslot roller bearings And yeah I know they aren't Question on TSlot and Linear Bearings · 8020 linear bearings questionHELP! question concerning linear vs roller