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Installation of NSK bearing: whether the NSK bearing is installed correctly affects the accuracy, service life and performance. Therefore, the Disassembly Skills installation, design and assembly department of NSK bearing has fully studied it. I hope it can be installed according to the operating standards. Items of operating standards are usually as follows:
(1) Clean and NSK bearing related components;
(2) Check the size and sorting components related to the case;
(3) Installation;
(4) Inspection of NSK bearing after installation;
(5) Lubricant supplied.
Just unpack NSK Bearings before installation. General grease lubrication. If it is not clean, fill the grease directly. The lubricating oil is generally not clean, but use the Disassembly Skills instrument or high-speed bearing and clean it with cleaning oil to remove the rust inhibitor coated on NSK bearing.
Remove NSK bearing, rust inhibitor, we can’t leave it. In addition, it has been sealed up. The VTC grease bearings are not washed directly. The installation method of bearing is Disassembly Skills different because of NSK bearing structure and conditions.
Generally, more shafts rotate, so the interference of inner ring meets the requirements. NSK bearing, cylindrical hole multi press in, or use hot Disassembly Skills delivery and hot assembly method. Directly on the installation of taper shaft or shaft sleeve.
It is usually installed on the shell with more clearance, and the outer ring has surplus. It is usually pressed, or the cold shrinkage matching method of Disassembly Skills cooling has been installed. Dry ice is used as coolant. When it is installed with cold shrinkage, the moisture in the air will condense on the surface of NSK bearing. Therefore, proper anti-corrosion protection.
Care should be taken in the removal and installation of NSK Bearings. Be careful not to damage NSK bearingDisassembly Skills and all parts, especially the disassembly interference with NSK bearing, which is difficult to operate.
Therefore, it is very important to design the disassembly tools according to the needs in Disassembly Skills consideration of the convenience of disassembly in the design stage. Demolition, according to the demolition method in the drawing, the demolition operation is safe with investigation and conditions.
1. Disassembly of outer ring
Remove the interference fit of the outer layer, extrude several screws in advance, tighten the screw evenly with the outer circumference of the screwdriver, and remove. These usually include screw holes for plugs, tapered roller bearings and other NSK Bearings Based on separation, setting several notch stations on the shoulder of the housing, using cushion blocks, reporters to delete or excavate demolition.
2. Demolition of cylindrical holes
The inner ring can be pulled out with new simple mechanical pressure. At this point, we should pay attention Disassembly Skills to the internal strength to bear the pull.
NSK bearing inner ring is removed by hydraulic method. By setting the oil on the shaft hole, it is easy to pull. The width is large NSK Bearings and hydraulic clamps, in accordance with the law and pull, removal action.
The inner ring disassembly of Nu and NJ cylindrical roller bearings can take advantage of induction heating. Local heating in a short time makes the internal expansion method of post drawing.
3. Disassembly of tapered bore bearing
Remove the relatively small NSK bearing set sleeve, tighten the camshaft support several times in the inner ring, and knock the removal pad with a hammer,.
Large NSK bearing, hydraulic disassembly is easier to use, in the hole of pressure oil, the internal expansion of conical shaft, and the way of removing bearing. During operation, the possibility that NSK Bearings suddenly appear is to use nuts and file blocks.