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河北华利机械配件有限公司

Thrust Bearing Installation

2014-10-23 10:02:12
Thrust bearing loose ring mounting method
Thrust bearing in the assembly main axial load, wide application. Although the thrust bearing installation operation is relatively simple, but the actual service is still often an error occurs, the tight and loose ring bearing ring mounting location that is incorrect, the results of the bearing out of action, the journal soon be worn. Figure shows the tight ring is mounted on the end face of the stationary member, an error assembly. Tight inner ring and the journal for the transition fit to drive when the shaft is rotated clamping ring and friction with the stationary end face in the axial direction by the force (Fx), it will appear larger than the inner diameter of friction torque with the moment of resistance, leading to tight ring and the shaft with the face mandatory rotation, increased wear journal.
Therefore, the thrust bearing installation should pay attention to the following points.
(1) distinguish between the bearing ring and loosen tight rings (bearing diameter size is determined according to the pore size difference 0.1 ~ 0.5mm).
(2) to distinguish between the stationary member bodies (ie moving parts does not occur, mainly refers to the assembly).
(3) No matter what the situation, you should always lock ring bearing against the end face of the stationary member.
Installation thrust taper roller bearings
Thrust cylindrical roller bearings and thrust needle roller bearings for low speed applications, thrust tapered roller bearings speed slightly thrust bearing in the assembly main axial load, wide application. Although the thrust bearing installation operation
Working Process turbine thrust bearing is what?
Mounted on both sides of the main shaft thrust plate Face and have a number of pieces of non-face thrust pad, the back pad with a pin hole. This hole back against the pad placed on the pin mounting ring, tile can be rotated slightly around the pin.
Pin holes on the tile located in off-center 7.54mm, and are therefore constitutes a wedge gaps between tiles face thrust plate. When the thrust plate rotating oil by pressing in the wedge-shaped gap, the pressure increase, so this layer of the film has the ability to withstand the axial thrust of the rotor. Disposed in the mounting ring annulus seat, spindle oil through an orifice into the surrounding annular oil chamber and flows radially between the tiles. Between the tiles leaving ample space for easy oil circulation in the tile block.
Spherical thrust bearing seat is equipped with an oil return index oil ring, oil ring around the periphery to form an annular thrust plate back to the oil chamber. Face and non-face at the top back to the oil retaining ring, each with two back to the hole, but you can also use a needle valve to regulate the oil return.
The thrust pad thrust plate arranged between the ring and is also equipped with the slinger, the bad block oil enclose thrust pad, form the thrust bearing ring into the oil chamber.