Ozak Seiko Flanged Linear Ball Bearing (ML40-UU) Single, UML Series Part Number: ML40-UU Features · UL: Ultra long-life (U ultra) linear bearing, long-life type with high tolerance of moment loads and lifetime that is 18.5 times that of the standard type. · UML: Ultra-long life (Ultra) rust-proof type Configured Specifications  Download Product Type Straight Motion Linear Motion Style Standard Outer Cylinder/Housing Material Steel Outer Cylinder Surface Finish Plated For Shaft Diameter(mm) 40 Overall Length L(mm) 80 Lubrication Type Standard Outer Diameter D(mm) 60 Type Standard Length Standard Ball Recirculating Type Single Show More