How to quickly calculate the ball screw nut and choose?

Dongguan Luerte Machinery Equipment Co., Ltd. supplies transmission accessories related to linear products. The main products are: linear modules, dividers, planetary reducers, Taiwan TBI ball screw, South Korea SBC chrome shaft, sliding unit, South Korea SAMICK linear bearings , Taiwan KBS series, couplings, cross roller guides, etc.; product quality assurance, complete specifications, reasonable prices; products widely used in machine tool manufacturing, semiconductor industry, medical equipment manufacturing, packaging equipment and automation industry, automotive Manufacturing, etc., and can effectively reduce the cost of products in various manufacturing industries, improve product market competitiveness. The choice of ball screw includes its precision selection, size specifications (including lead and gantry diameter), and support methods. The bearing capacity of the ball screw pair is expressed by the rated dynamic load or the rated static load. In the design, the size specification of the ball screw pair is generally determined according to the rated dynamic load. Only when the curse is ≤ lOr/min, the rated static load is used. . The stability of the compression rod should be calculated for slender, but also to withstand the compression of the ball screw; for the ball screw with high speed, large bearing distance should be critical speed check; high precision ball screw should be rigid Checking and inertia checking; for CNC machine tools, the rotational inertia needs to be accounted for; and for closed-loop control systems, the checking of resonant frequency is also required. [Selection of Ball Screw Support Bearings] Since the screw shaft mainly receives axial force, thrust bearings are mostly used for support. Under the same size conditions, the axial stiffness of the thrust ball bearing is more than double the axial stiffness of the radial thrust ball bearing and the tapered roller bearing. The thrust roller bearing is about twice as rigid as the thrust ball bearing. When the axial load is small, radial ball bearings can be used without the use of thrust ball bearings, which can reduce the number of bearings. [Selection of ball screw sub-structure] According to the dust-proof protection conditions and the requirements of the gap adjustment and pre-tightening, the appropriate structure can be selected. For example, when a time slot is allowed to exist (such as vertical movement), a single-nut ball screw set with a single arcuate thread raceway may be selected; when there must be pre-tensioning and periodic adjustment due to wear during use, Double nut thread pre-tightening or pre-tightening mechanism should be adopted; when there is good dustproof condition and only need to adjust the clearance and pre-tightening force during assembly, the double nut washer with simple structure can be used to adjust the pre-tightening type. structure. My company's stock supply of ball screw, inexpensive, welcome new and old customers inquiries. More information source /