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NSK linear bearing application methods and matters needing attention
Source: China Bearing Network Time: 2014-01-15
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1. Adhere to the hygiene of the bearing and its surroundings.
2, careful when using: If the application of thick branches and large leaves to NSK linear bearings with a strong impact; will cause the bearing to appear scratches, indentations, cracks and other injuries.
3. Use the right things.
4, pay attention to the anti-rust of the bearing. It should be prevented from being used in wet places; and not to sweat; should wear gloves.
5, the user should understand the bearing.
6. Formulate the operating standards for the use of NSK linear bearings:
1) Storage of NSK linear bearings 2) Removal of bearings and their surroundings 3) Inspection of the dimensions and processing quality of equipment parts 4) Equipment operation 5) Inspection after equipment 6) Unpacking operation 7), Protection protection (timed viewing)
8), the smoothing agent to make up the following table is the primary analysis project listed by the professor: Analyze the project selection method 1. The bearing type of the rigid shaft that is functionally satisfactory to the mechanical shafting is in the machine tool spindle and the final stage of the vehicle; In the rigidity of the progressive shaft together; it is also necessary to improve the rigidity of the bearing. The roller bearing receives the load and the deformation is smaller than the ball bearing. Preloading (negative clearance) on the bearing can improve the rigidity. This method is suitable for the angular touch ball. Bearings and tapered roller bearings.
2, NSK linear bearing equipment space can be contained in the bearing equipment space bearing type because the drawing of the shaft system pay attention to the rigidity and strength of the shaft; therefore usually determine the shaft diameter; that is, the bearing inner diameter. But rolling bearings have a variety of scale series and types ; should choose the most suitable bearing type.
3, the rotation accuracy of the bearing type with the required rotation accuracy machine tool spindle, gas turbine and control machine are different from the demand for high rotation accuracy, high speed and low conflict; then NSK linear bearings with a precision of 5 or more should be used.
4. When the equipment is disassembled and timed, etc., the frequency of assembly and disassembly and the method of loading and unloading are used to disassemble and disassemble; the cylindrical roller bearing which can be separated by inner ring and outer ring; needle roller bearing and tapered roller bearing are convenient. Conical hole Self-aligning ball bearings and tapered bore spherical roller bearings can be easily assembled and disassembled by using fasteners or withdrawal sleeves.
5, the size, direction and nature of the load bearing load bearing load changes; such as the size of the load, whether the radial load, axial load is one-way is still two-way, the degree of oscillation or impact, etc. After these elements; then choose the most suitable NSK linear bearing type.
6. The relative skew of the inner ring and the outer ring dissect the elements that cause the inner ring and the outer ring to be relatively skewed; and select the type of bearing that can be used to such conditions. If the inner ring and the outer ring are relatively skewed, the bearing will Due to internal load formation damage, the type of bearing that can accept this skew should be selected.
7, the speed can be used to the mechanical speed of the NSK linear bearing type of bearing limit speed is not only taken from the bearing type but also limited to the bearing scale, adhere to the frame type, accuracy level, load conditions and smooth methods; therefore; it is necessary to consider these elements when selecting.
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