Main Character:·The outside spherical surface bearing is an changed type of deep groovy ball bearing. Its characteristic is its outside surface is spherical and it has self-aligning function after matching the relevant bearing seat.·Although it has similar basic capacity with deep groovy bearing, its commoness capacity is not as good as the deep groovy ball in the same specification, because this kind of bearing, which is mainly used in the coarse machine, its installing-orientation is not exacted enough and the middle versus capacity between axis and seat hole is not good, or under the situation that its has long axis and high bending degree and the bearing's precision is not high enough and some of them is also coarse. For an instance, outside balling-spherical ball bearing with filar top, which is applied for the general bearing with low firm degree and high bending degree, has sealed circle in two sides to strictly prevent the incusion of feculency. And it has been added certain quantity of lube when made up, so before installing it is not need to cleanout and plusingfill lube. And when the tip thread on the coming-out end of bearings' inside circle is fixed tightenly in the axis, the axis charge is allowed not to exceed 20% of rating-act charge.·The capacity is homology basicly between spherical surface with patiality cover and spherical surface with tip filar, besides the tip filar is not in the inside circle but in the partility cover. The tapered hole outside spheriacal ball bearing has the tapered hole with 1:12 tapered degree and can be installed in the tapered bearing, or it can be installed in the no-axis shoulder naked with the help of tightened bush and can tinily fix the bearing's windage.
