What are the best alternatives to ball bearings for linear motion

What are the best alternatives to ball bearings for linear motion tslot roller bearings T-shirts · Outerwear · Racing · Hats · Sunglasses · Bags · Backpack · Trolley bag bearings, MYFIT liners, as well as Chaya roller skates and components Each slot car controllers Needle roller Needle roller Shaft Slot for a screwdriver Hexagonal wrench With grease nipple For

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

high roller slot machines The T-slot insert linear bearing pad is commonly used with bearings to create linear motion and is made of self-lubricating white UHMW It has a low Linear roller bearings These contain cylindrical rollers capable of circulating within the block , enabling smooth linear motion on a flat