Full definition
Process of replenishing grease in in-service bearings to maintain the lubricant film and extend service life. Relubrication interval: calculated using SKF formula tf = (14,000,000 / n√d) × k, where n = RPM, d = shaft diameter in mm, k = correction factor (temperature, position, environment). Grease quantity: Gg = 0.005 × D × B [grams], where D = outer diameter, B = bearing width. ISO 281 standard. Standard grease nipple: ISO 1 (Zerk/Alemite).