SL Type Cylindrical Roller Bearings NTN can be relubricated via the inner or outer ring. For this purpose, both bearing rings have an integral circumferential lubrication groove and axial lubrication holes. It is recommended that catalogue bearings lubricated with a grease in accordance with GA08 should be relubricated using the grease Arcanol LOAD150. In the case of bearings with an initial greasing in accordance with GA22, relubrication can be carried out using a lithium soap grease to DIN 51825 KE2K–50 or DIN 51825 KEHC2K–50 and a base oil viscosity at +40 °C of = 15 mm2/s or = 22 mm2/s.