Patent ID: 8839479

Claim:
An orbital floor cleaning apparatus comprising: a handle assembly coupled to a driver base; and an orbital drive assembly coupled to the driver base, the orbital drive assembly comprising: a driver motor disposed on an upper surface of the driver base having a drive shaft through the driver base; a driver plate disposed under the driver base and mechanically coupled to the drive shaft, where the driver plate includes at least one offset weight; a bearing assembly disposed under the driver plate and mechanically coupled to the drive shaft, where the bearing assembly includes a housing, a bearing, a bearing center, and a bearing retainer; wherein said bearing center is installed within an inner diameter of said bearing; said bearing assembly offset a vertical distance from said driver plate by at least one washer; wherein said at least one washer, said housing, said bearing, said bearing center and said bearing retainer each have a through hole for said drive shaft to pass through, said through hole of each of said at least one washer, said housing, said bearing, said bearing center and said bearing retainer each being centered horizontally between an outer diameter of each of said at least one washer, said housing, said bearing, said bearing center and said bearing retainer when viewed from the side, and said through hole of said at least one washer, said housing, said bearing, said bearing center and said bearing retainer each being centered radially about an outer circumference of said at least one washer, said housing, said bearing, said bearing center and said bearing retainer when viewed from above and below; and a driver disposed under the bearing assembly and mechanically coupled to the bearing housing.