NSK bearing installation
Installation NSK bearing: NSK bearing installation is correct, affect precision, life, performance. Therefore, NSK bearing installation design and assembly department fully research. Hope to work in accordance with the standard installation. The project operation standard usually are as follows:
(1) clear and NSK bearings components;
(2) check the size of the related to the case, and clean up the components;
(3) installation;
(4) NSK bearings after installation check;
(5) supply lubricant.
To before installation, just open the package NSK bearings. General grease lubrication, not clean, the direct filling grease. Lubricating oil, generally don't clean, but the use of the instrument or high-speed bearing and, using clean oil, rinse the NSK bearings coated in to remove the rust. Delete NSK bearings, rust corrosion inhibitor, we can't put aside. In addition, has been sealed up, job training council oil bearing, don't wash directly. The installation method of bearing, because NSK bearing structure, the condition is different, in general, the more axis rotation, so the inner ring interference meets the requirement. NSK bearings, cylindrical holes more pressed into the pressure, or the use of hot charging method. Directly in the shaft or the installation of the collar cone.
Installed in case there are usually more clearance,, outside a surplus amount, usually in the press, or have already installed the cooling method with cold. Dry ice as coolant, with the occasion of installation cold, moisture from the air condensed NSK bearing surface of will. Therefore, the appropriate anticorrosion protection.
NSK bearing removal techniques
NSK bearing removal and installation, should be careful. Be careful not to damage the NSK bearings and each place, especially with NSK bearing remove interference, the operation is difficult. Therefore, in the design stage before considering to remove the convenient, remove the tools, according to need to design is very important. Demolition, according to drawings removal methods to investigate and conditions for the bearing operation no risk at all.
1, the removal of outer ring
Remove the outer layer of the interference coordination, in advance of the set out a few screws, with a screwdriver outer periphery, tighten the screws up even side, and not removing. These usually include bulkhead of screw holes, tapered roller bearing and other based on separation NSK bearing, the crust on the shoulders of a few incisions stand Settings, use spacers, reporters deleted or mining demolition.
2, the cylindrical holes
The removal of inner circle, with the latest simple korah mechanical pressure. At this point, we should pay attention to the internal strength to withstand pull.
NSK bearings inside the circle of the large hydraulic method. By setting up the oil on when, so it's easy to pull. Big NSK bearings and width is hydraulic clamp, in accordance with the law and pull, demolishing.
NU type fuel outlet, NJ type cylindrical roller bearing the inner circle remove can use induction heating advantages. In a very short period of time local heat, the drawing the inner expansion after the method.
3, and tapered hole of the bearing is removed
Remove NSK bearing relatively small tight set set, inside circle, nuts back several times to tighten the camshaft support the use of hammer beat remove mat,.
Big NSK bearings, hydraulic remove more easy to use, in the pressure of the oil hole, cone of internal shaft expansion, the bearing way. The operation, NSK bearing the sudden emergence of possibility, had better be to use nuts and file blocks.
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