When the bearings wear out on a piece of equipment you would be surprised at what kind of havoc it can wreak. You do not want to find yourself without a good set of bearings with your tools and appliances. If you need to be on-point at all times, you may want to consider having spare parts on standby. With so much commercial use of equipment you may be surprised at how much service your machines truly need. A tune up here and there never hurt anyone. Planning ahead and being prepared never hurt anyone either. If you are wanting to be on top of your game in the kitchen with your commercial grade kitchen appliances, have a look at http://www.cutter-sales.com/bearings and you are sure to find the brand of products that you use. Having something like this on standby will give you a peace of mind. This is not to say that you need to have all interchangeable parts on hold in your pantry, but it is a good idea to have commonly worn out items nearby.