A bearing's whole job is to spin without complaint. When it starts complaining, that's the machine giving you notice. Ignore it long enough and the noise turns into wobble, the wobble turns into damage, and now you're replacing a shaft and a housing instead of a five-dollar bearing.
This is the genuine Nilfisk Advance OEM BEARING BALL, part number 56027222, brand new in the box. Signs of bearing wear: growling under load, play in the shaft when you check for it, heat coming off the housing after operation.
Genuine OEM bearings have the right load rating, sealing, and lubrication for the application. Cheap sealed bearings from unknown sources fail early and take other parts with them.
Not sure this is the right bearing for your machine? Send us the model and serial and we'll confirm.
