a. The thrust clearance

Push the thrust bearing gap stopper meet the design requirements.

b. Thrust pad

(1) layer of babbitt thrust pads should be no bodiless, wear, cracks, burning, crushing, galling, erosion and galvanic corrosion and other defects. Dip the colored tile or kerosene inspection, babbitt metal bond well with the substrate.

(2) The thrust pad surface does not allow the presence of radial grooves or scratches, the depth of the circumferential grooves or scratches should not exceed 0.01mm.

(3) the same group of tile work traces should be roughly equal, as signs of uneven work says Ming Wa block bearing uneven, should find out the reasons.

Exposure (4) Check with the red lead of the individual tiles babbitt surface and stop the push plate surface, the contact area should not be less than 80%, the same group Wabu thickness deviation should not exceed 0.01mm.

(5) tiles back bearing surface is smooth, no burning, glued and impressing reload marks.

(6) The limit fixed reliable pins, pins and pin holes were not worn. After assembly tile swing freely.

(7) of the thrust pad with thermal elements, check the thermal element in the tile firmly fixed, the temperature leads should not affect the tile flexible swing. Thermal element and the lead together with tile inspection by the meter, insulation and measurement accuracy according to the instrument specifications.

c. base ring and level block

(1) The standard block bearing surface is smooth, no wear, burning, and other heavy-duty indentation marks in the base ring swing flexible and comfortable, no card astringent. Stopper pin lengths suitable fixation with standard block pin hole has enough space, not the top are compact, not partial wear pin holes.

(2) inter-level block each other face in the line of contact no indentation, smooth, level block swing freely after assembly.

(3) The base ring without buckling deformation, two and a half base ring binding planing good mouth, with no indentation at the contact level block, the base ring on the back of the end face of the thrust bearing housing pressure evenly. Anti-rotation button on the base ring fixed good, the corresponding keyway no wear on the housing.

d. thrust disk

(1) thrust disk surface is smooth, the surface roughness Ra value of less than 0.8 Zi m, existence does not allow radial grooves, the circumferential groove depth should not exceed 0.05mm

(2) from the coupling of the thrust plate, pressing keys and keyways no trace, no crack keyway through testing and inspection. The thrust plate and the shaft shoulder and the back face contact female uniform, with the appropriate key in the push plate keyway stop, with the side of the gap, the tip clearance and the thrust plate and the shaft meet the design requirements. The end face of the push plate assembly stop beating after less than a full 0.015mm.

(3) Working hydraulic push plate structure only, you should check the push plate bore and the shaft surface from exposure, check the thrust plate face and the shaft shoulder exposure, it shall not be less than 80%. Each surface without burr, with the size of scratches, damage, stop and push plate bore axis does not exceed the difference.

(4) along the circumference of the thrust plate thickness deviation of not more than 0.01mm.

(5) The thrust bearing gap adjustment shim is one, should be smooth, along the entire circumference of the thickness error is less than 0.01mm.

(6) The inner and outer slinger with suitable, not loose.

(7) Clean bearing housings, each supply hole to coincide with the bearing housing hole, unimpeded.