NSK bearings
NSK is a Japanese brand and producer of all kinds of ball bearings, roller bearings and bearing housing units. NSK ball bearings that are produced following SUJ2 alloy steel recommended by Japanese industrial association has high tensile strength, high durability and very high precision. NSK also uses high quality greases and oils as lubricators that are mostly heat resistant. NSK bearing housing units are produced with the ability for the outer ring to move against the housing unit which avoids the internal ball bearing from breaking.