SKF track runner bearings are supplied greased. They are filled with the appropriate amount of a high-quality grease under clean conditions. The technical specifications of the greases are listed in table 1.
Relubrication requirementsCam followers require little maintenance, but they should be relubricated regularly to achieve their full service life. SKF recommends relubrication while the initial grease fill still has its full lubricating properties. Cam followers used in applications where there are light loads, relatively low speeds and clean surroundings, can operate for long periods before relubrication is required. Cam followers that operate under contaminated and damp conditions at high speeds or at temperatures above 70 °C (160 °F) require more frequent relubrication. Full complement cam followers require more frequent relubrication.
KR design cam followers, sizes 16 and 19, designation suffix PPSKA, cannot be relubricated.
Relubrication featuresCam followers can be relubricated via ducts in the stud. Depending on series and size, there are up to three positions for relubrication (fig. 1). Detailed information about the positions can be obtained from the product table. Positions 1 and 2 can take the grease fitting supplied with the cam follower. Position 3 should be used when relubricating via ducts in the adjacent components. Positions not used for relubrication should be closed by a grease fitting or a plug.
For cam followers, size ≥ 35, positions 1 and 2 can be connected to a central lubrication system. For additional information, refer to Grease lubrication.