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SPHERICAL ROLLER BEARING

The spherical roller bearing has two rows of rollers, which mainly bear a diameter load, and can also bear axial load in any direction. With high radial load capability, it is especially suitable for working under heavy load or vibration load, but it can not bear pure axial load. The raceway of this kind of bearing outer ring is spherical, so its aligning performance is good, and it can compensate coaxiality error.
There are two kinds of spherical roller bearing: cylindrical inner hole and conical inner hole. The cones of the conical inner holes are at 1:12, the K roller bearing (type 153000 or 113000) and the adjustable roller bearing named K30 at 1:30. When the bearing is matched with the conical shaft, the inner ring moves along the axial direction, and the radial clearance of the bearing can be adjusted.
The tapered bore spherical roller bearing with rear designation K and K30 is installed on the matching tight sleeve, then it becomes the rear code K+H and K30+H bearing. The bearing can be mounted on the optical axis without shaft shoulder, and is suitable for occasions requiring frequent installation and dismantling of bearings.
In order to improve the lubrication performance of bearings, there are annular oil grooves in the bearing outer ring and three oil holes evenly distributed. The rear code is W33.


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