Deep Groove Ball Bearings Mainly Bear
Deep Groove Ball Bearings Mainly bear
Deep groove ball bearings and thrust ball bearings of the difference
Deep groove ball bearings are mainly subjected to radial loads and can also bear both radial and axial loads. When it is only subjected to radial loads, the contact angle is zero. When the deep groove ball bearings with a large radial clearance, with angular contact bearing performance, can withstand greater axial load, deep groove ball bearing friction coefficient is very small, the limit speed is also high.
The deep groove ball bearing consists of a series of steel balls (with a cage), a shaft ring (with the shaft tight fit) and a seat ring (with the shaft with the bearing hole with the gap), the ball in the shaft and seat Between the rotation. Can only bear the axial load in one direction, can not bear the radial load. As the axial load is evenly distributed on each ball, so the load capacity is greater; but the work, the temperature rise, allowing the limit speed is low.
Deep groove ball bearings can not limit the radial movement of the shaft or housing, but can limit the shaft and the shell in one direction of the axial movement, therefore, such bearings are usually used in conjunction with deep groove ball bearings. During installation, the axes of the shaft and housing holes must be kept concentric, otherwise the bearings may be damaged prematurely due to stress concentration. In order to eliminate this undesirable phenomenon, in the seat outside diameter and shell hole between the 0.5 ~ 1mm radial clearance. Axis center line and the shell bearing surface should be guaranteed vertical, does not allow the shaft tilt and deflection, otherwise it will be due to uneven load distribution caused by premature bearing damage. To eliminate the tilt of the bearing axis, the bearing surface of the seat can be padded with elastic material, such as oil-resistant rubber, leather, etc., or with a spherical seat deep groove ball bearings.
Deep groove ball bearings are separate bearings, according to its structure is divided into one-way thrust ball and two-way deep groove ball bearings. One-way deep groove ball bearings can withstand axial load in one direction, two-way deep groove ball bearings can withstand axial load in both directions. They can not withstand radial loads. Deep groove ball bearings also have a seat cushion structure, as the seat cushion surface is spherical, so the bearing has a self-aligning performance, can reduce the impact of installation errors. Deep groove ball bearings applications
Deep groove ball bearings are mainly used in oil rigs, iron and steel machinery. Thrust spherical roller bearings This type of bearings are mainly used in hydro-generators, vertical motors, propeller shafts for ships, tower cranes, extruders, etc. Thrust cones Roller bearings The main purpose of this type of bearings: one-way: crane hook, oil drilling machine ring. Bidirectional: rolling mill roll neck. Plane thrust bearings in the assembly mainly bear axial load, its wide range of applications.