These Type LLR profile rail guides offer advanced features and benefits for precise linear positioning and high load-carrying capacity, high stiffness, and unlimited stroke. Their unique features include pre-lubricated carriages incorporating foam inserts (acting as lubrication reservoirs), which eliminates a need for frequent lubrication and the associated maintenance costs. Plastic ball separators serve to reduce vibration and unwanted noise. Quiet and smooth operation of these guides is enhanced due to optimized ball recirculation and ideal ball separator geometry.