LR5008NPPU Track Roller 2-Row Bearing 40mm x 68mm x 21mmLR5008NPPU Track Roller Bearing Double Row 40mm ID 68mm OD 21mm Wide Sealed The LR5008NPPU is a heavy duty double row track roller bearing built for guided linear motion under high loads. With its sealed design and double row construction, it's ideal for material handling systems, automation equipment, and rail guided mechanisms where durability and smooth rolling are essential. Type: Double row track roller bearing Inner diameter: 40mm Outer