Have you heard of SKF lifetime bearings?
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It’s from SKF; there is no need to replace the lubricant, as the bearing comes with its own lubricant. The lubricant does not need to be changed, and the lifespan is the same as that of the bearing. Has anyone used this type of bearing? Thank you
Does this belong to self-lubricating bearings? Is it the type with small holes for lubricant on the friction surface of the bearing substrate metal? SKF probably has such a series, but its applications are not widespread
Reply to 2# innnosense: Doesn’t this type of bearing require lubricant replacement? Could you explain in detail? Thank you
There are maintenance-free bearings with dual dust covers; these bearings are pre-lubed with grease before leaving the factory, and the bearings need to be replaced when the grease is used up. However, there are limitations regarding bearing types; for example, bearings whose inner and outer rings can be separated do not have dual dust covers (such as cylindrical roller bearings). The most common type is the single-row deep groove ball bearing, and bearings marked with 2Z or ZZ at the end of their model number have dual dust covers, such as 6305-2Z. Attention should also be paid to the selection; bearings with dual dust covers are not suitable for all operating conditions.
The service life of bearings is greatly influenced by your operating conditions and the environment in which they are used