Improper removal of NSK shaker bearings can lead to internal damage, which may compromise the bearing's performance and lifespan. If not handled carefully, contaminants can enter the bearing or cause misalignment during reinstallation, leading to operational issues. Therefore, it is essential to approach the disassembly process with caution, ensuring proper support for the shaft to prevent any undue force from damaging the NSK bearing.
1. **Disassembly of the Outer Ring**
To remove the outer ring that is fitted with an interference fit, it’s recommended to pre-install several screws around the housing. These screws are placed in screw holes on the outer ring, and they are tightened evenly on one side to gradually push the ring out. In many cases, these screw holes are covered by blind plugs. For bearings like tapered roller bearings used in vibrating screens, the housing often has cutouts on the shoulder, allowing for the use of a press or tapping tools to facilitate removal.
2. **Disassembly of Cylindrical Hole Bearings**
For cylindrical hole bearings, the inner ring can be removed using mechanical pressure. It’s important to ensure the inner ring can withstand the pulling force without distortion. For larger shaker bearings, an oil pressure method is commonly used. Oil is injected through the shaft’s oil hole, creating pressure that helps loosen the bearing for easier removal. When dealing with wide bearings, a puller fixture is typically used in conjunction with the oil pressure method. Additionally, for NU and NJ type cylindrical roller bearings, induction heating can be applied to expand the inner ring quickly, making it easier to extract.
3. **Disassembly of Tapered Hole Bearings**
When removing smaller tapered hole NSK bearings, an adapter sleeve is often used. The inner ring should be supported with a block secured to the shaft. After loosening the nut several times, the bearing can be removed using a boring head and appropriate pads. This method ensures even pressure distribution and reduces the risk of damaging the bearing components.
Fengshen Type Refrigeration Solenoid Valve
Refrigeration Solenoid Valve for refrigerator, freezer and air conditioning plant applications in liquid, suction, and hot gas lines with ammonia or fluorinated refrigerants.
Options for you:
1. Connection Type: SAE (Flare), ODF (Solder), Flanges;
2. Port Sizes: 1/4'', 3/8'', 1/2'', 5/8'', 3/4'' , 7/8'', 1 1/8'', 1 3/8'', 1 5/8'', 2 1/8'';
3. Operation: Direct Acting, Diaphragm Pilot Operated, Piston Pilot Operated;
4. Function: 2 Way Normally Close, 2 Way Normally Open;
5. Coil Voltages: 24VAC, 48VAC, 110VAC, 220VAC, 12VDC, 24VDC.
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