Using method of NTN angular contact ball bearing radial clearance

First put sealed, NTN bearing in gasoline cleaning, wipe the residue of sludge and dust on the angular contact ball bearing, bearing all rusty wipe gently with the metallographic sandpaper polished, until no fingered rough feel. Then use dry cloth after cleaning the bearing wiped dry, soaked in the anti-rust oil again. In the process, will fully contact with the anti-rust oil bearing, don't stop rotating angular contact ball bearing, so that the rust-proof oil forming oil film covering on the surface of NTN bearing, achieve the goal of rust. The third step with lithium base grease or with butter, evenly coated on the surface of NTN bearing, including inside and outside the circle, wheels, cage. And wipe while rotating bearing, makes the butter into the real bearing internal, sufficient lubrication effect. The fourth step is the last line of packaging process is. In order to save costs, we 'waste', scrapping of cement bags in the warehouse, the packing bag of cut into appropriate size, bearing a good tight, package, label after good specifications of angular contact ball bearing deposit back on the shelf. NTN bearing of remove and install the same carefully. Careful not to damage the bearing and the parts, especially interference fit the bearing down, and the operation is difficult. So, in the design stage to consider in advance to facilitate disassembly, designed and manufactured according to need remove the tools is also very important. When disassembling, according to the drawings the disassembly method, sequence, investigate the matching of the angular contact ball bearing conditions, to ensure foolproof disassembly operations. Note: (measuring bearing radial clearance 1) As far as possible, using special instrument measurement method; ( 2) Push method have higher measurement skills required measurement. The method measuring error is bigger, especially clearance are in a state of edge, easy to cause error, at this point, the instrument measurement shall prevail; ( 3) Feeler, should according to the provisions of the standard operation, shall not use the roller from feeler rolled past way to measure; ( 4) Measurement process, should guarantee the ball fell into the ditch; Closed type bearing measurement in front of the closed; Using lotus instruments, measuring value minus the load caused by the clearance increase. ( 5) For multiple row angular contact ball bearing, for each column clearance, clearance the arithmetic mean of the columns as a NTN bearing radial clearance.