Tapered roller bearings are separated type bearings. Both inner and outer rings of the bearings have tapered raceways, and the roller is round. The roller is in line contact with the raceway and can bear heavy combined radial and axial loads as well as pure axial loads. The larger the contact angle, the higher the axial bearing capacity.
圆锥滚子轴承的特点（Characteristics of tapered roller bearings）
圆锥滚子的设计应使滚子与内外滚道的接触线延长后交于轴承轴线上同一点，以实现纯滚动。
The tapered roller should be designed so that the contact line between the roller and the inner and outer raceways is extended and intersected at the same point on the axis of the bearing to achieve pure rolling.
新设计的圆锥滚子轴承采用加强型结构，滚子直径加大，滚子长度加长，滚子数目增多，采用带凸度滚子，使轴承的承载能力和疲劳寿命显著提高。 滚子大端面与大挡边之间采用球面与锥面接触，改善了润滑。
The newly designed tapered roller bearing adopts the reinforced structure, the roller diameter increases, the roller length lengthens, the number of rollers increases, and the roller with crown is adopted, so that the bearing bearing capacity and fatigue life are significantly improved. The contact between the large surface of the roller and the big edge is spherical and conical, which improves lubrication.
该类轴承按所装滚子的列数可分为单列、双列和四列圆锥滚子轴承等不同的结构型式。该类轴承还多使用英制系列产品。
This kind of bearing can be divided into single row, double row and four row tapered roller bearings according to the number of rows installed. This type of bearings also use more British series products.
圆锥滚子轴承的结构特点（Structural characteristics of tapered roller bearings）
圆锥滚子轴承的类型代号为30000，圆锥滚子轴承为分离型轴承。一般情况下，尤其是在GB/T307.1-94《滚动轴承向心轴承公差》中所涉及到的尺寸范围内的圆锥滚子轴承外圈与内组件之间是百分之百可以通用互换使用的。外圈的角度以及外滚道直径尺寸已与外形尺寸相同被标准化规定了，不允许在设计制造时更改。以致使圆锥滚子轴承的外圈与内组件之间可在世界范围内通用互换。
The type of tapered roller bearings is 30000, tapered roller bearings are separable bearings. In general, especially in GB / T307.1-94 "Rolling Bearing Centroid Bearing Tolerance" refers to the size range of tapered roller bearings between the outer ring and the inner assembly is 100% interchangeable. The angle of the outer ring and the diameter of the outer raceway have been standardized to the same size as the outer raceway. It is not allowed to be changed during design and manufacture. The outer ring and inner components of the tapered roller bearing can be exchanged all over the world.
圆锥滚子轴承主要用于承受以径向载荷为主的径向与轴向联合载荷，与角接触球轴承相比、承载能力大，极限转速低。圆锥滚子轴承能够承受一个方向的轴向载荷，能够限制轴或外壳一个方向的轴向位移。
Tapered roller bearings are mainly used to withstand combined radial and axial loads with radial loads. Compared with angular contact ball bearings, tapered roller bearings have higher bearing capacity and lower limit speed. Tapered roller bearings can withstand axial loads in one direction and can limit axial displacement in one direction of the shaft or housing.
