Bearings are the parts that give the earliest warnings and get ignored the longest. A little bit of noise, a little bit of heat, a little bit of vibration — none of it seems urgent, so it waits. Then one day the shaft's ruined, and the "little bearing job" is a big teardown.
This is the genuine Nilfisk Advance OEM BEARING BALL, part number 56262626, brand new in the box. Replace early on symptoms; don't wait for failure. The part is cheap, the labor's manageable if you catch it before other damage.
Not sure this is the right bearing for your machine? Send us the model and serial and we'll match it up.
