NSK bearing device and disassembly
Lens Ring,Lens Ring Joint Gasket ,Lens Gasket,Lens Ring Gasket WENZHOU JINGWEI SEAL TECHNOLOGY CO., LTD , https://www.ringjoint-gasket.comNSK Bearing Installation and Disassembly
Many people make mistakes when installing NSK bearings, which can lead to damage. Proper installation is crucial for the performance and longevity of the bearing. Here are some key points to consider when installing and disassembling NSK bearings:
When installing, you can choose from mechanical, heating, or hydraulic methods depending on the type and size of the bearing. However, never hit the bearing ring, cage, rolling elements, or seal directly. Also, avoid transferring force from one raceway to another, as this can damage the raceway.
It’s recommended to apply a thin anti-corrosion agent on the mating surfaces to prevent corrosion between the bearing and the shaft.
Correct installation is essential for the proper functioning of NSK bearings. Always follow the correct procedures to ensure long-term performance.
The 390000 series spherical bearings are designed to secure the inner ring of the bearing to the shaft using a partial sleeve. The hexagonal screw on the sleeve provides the fastening function. During repairs, many technicians may not properly disassemble these bearings. Below are the key steps and precautions for disassembling the 390000 series spherical bearings:
**Disassembly Steps:**
1. First, use an Allen key to loosen the locking screw on the sleeve. Then insert a small iron rod into the counterbore on the top cover and turn the sleeve in the direction opposite to the shaft rotation to loosen it.
2. Loosen the bolts that hold the bearing housing in place. Remove the bearing along with the housing. Be careful to remove the bearing block bolt at the end of the shaft to prevent damage to both bearings during removal.
**Installation Steps:**
1. Before installing the bearing on the shaft, remove the fixing pin from the bearing housing. Clean and polish the journal surface, and apply a rust-preventative oil to ensure smooth operation and allow slight movement of the bearing on the shaft.
2. Apply lubricant to the bearing housing and the joint area. Place the bearing into the housing and then position it on the shaft. Push it to the desired location for installation.
3. Do not tighten the bearing housing bolts immediately. Ensure the housing can move freely. Once both bearings on the same shaft are installed, rotate the shaft several times to allow the bearings to self-align. Then, tighten the bearing block bolts.
4. Install the partial sleeve. Place it on the inner sleeve’s step and tighten it by hand in the direction of rotation. Insert a small iron rod into the counterbore on the sleeve and strike it gently with a hammer in the direction of the shaft rotation to secure it. Finally, lock the hexagonal screw on the sleeve.
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