Double Row Tapered Roller Bearings (TDO Type) consists of a double raceway outer ring, two single raceway inner rings and an inner spacer. The bearing clearance is adjusted by changing the thickness of the inner ring spacer. There is an oil groove and several oil holes on the double raceway outer ring. This type of bearing can bear axial and radial combined loads at the same time, so it can be used as a fixed end bearing. It is also often used as a free end bearing to balance the relative movement between the bearing seat and the bearing outer ring caused by thermal deformation of the shaft.
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