Precision Locking Round Nut + Spring Washer
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- Product Description
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- Commodity name: Precision Locking Round Nut + Spring Washer
- 副标题: Carbon steel slotted precision round nuts suitable for Elmo vacuum pumps
The precision locking round nut is used in conjunction with an anti-rotation washer (also known as a locking washer) to create a complete locking system. On high-speed rotating shafts, this system precisely adjusts and firmly secures the position of components like bearings, preventing any axial movement during operation.
ELMVAC Precision Fasteners for Vacuum Pumps (Precision Locking Round Nuts + Lock Washers)
Main function:
1. Ensuring rotor dynamic precision: The clearance between the rotor and the pump casing is extremely small—often just a few tenths of a millimeter. Even the slightest axial movement can lead to friction, wear, or even the catastrophic failure known as "scraping." This carefully designed assembly guarantees that the rotor remains perfectly stationary.
2. Maintaining Bearing Preload: Angular contact ball bearings must operate under precise preload forces to deliver optimal performance. This particular assembly ensures that this preload is consistently maintained throughout the bearing's entire service life.
3. Withstanding Extreme Conditions: The high-speed, high-temperature, and vibration-prone environment of vacuum pumps poses a severe challenge to fasteners. The mechanical locking method using "nuts + washers" proves far more reliable and heat-resistant than spring washers or thread-locking compounds, making it the industry-standard solution.




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Characteristics of vacuum pump oil
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Processing
Assembly
Quality inspection
Shipment
Precision Machining
The forged billet is turned by a CNC lathe to remove most of the allowance, making the shape of the rotor closer to the design size, while leaving an appropriate machining allowance for the subsequent fine processing. The precision machining of the screw profile is carried out using a MAZAK precision machining center. Through precise programming and processing, the profile accuracy of the screw rotor is controlled within the design requirements.
Assembly
After the installation engineer checked the vacuum pump materials, they assembled the vacuum pump products in accordance with the drawing requirements and conducted pressure tests and usage debugging on the assembled vacuum pump products.
Quality inspection
After each processing step of the product is completed, the quality inspection team conducts quality checks based on the processing technology and product standards. Products that do not meet the standards need to be reworked or scrapped.
Shipment
After all processing procedures are successfully completed, the staff responsible for packaging and shipping will check each product against the shipping documents one by one. Once the information is accurate, they will contact the logistics to arrange for shipping.
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Focused on vacuum systems for 16 years, with deep industry experience and highly specialized manufacturing expertise.
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