How to choose a suitable ball screw lead?

If the machine tool produces noise and vibration during work, after detecting that there is no problem with the mechanical transmission part, the problem of poor lubrication must first be considered. After many years of operation, the automatic lubrication system of the screw and nut is often blocked and cannot be automatically lubricated. The problem can be solved by adding high-temperature and high-speed grease to the bearings and nuts. Grease can ensure the normal operation of bearings and nuts for several years.

Ball screw lead selection: The selection of the lead is related to the required motion speed, system, etc. It is usually selected from: 4, 5, 6, 8, 10, 12, 20, the size is larger, and the lead is generally available Choose larger (mainly consider the bearing tooth thickness). When the speed is satisfied, generally choose a smaller lead (to improve the control accuracy); for the occasions requiring high speed, the lead can exceed 20, and the lead can generally be approximately equal to the nominal diameter for a ground screw (Limited by the spiral angle of grinding), such as 32 (32*32), 40 (40*40), etc., of course, It can also be larger (non-grinding, but rarely considered). The larger the lead, the larger the rotation component under the same conditions, the greater the period error and the faster the speed. Therefore, in general high-speed occasions, flexibility is required, and some accuracy requirements are abandoned, and the significance of the clearance requirements becomes smaller (the lead accuracy deviation increases). Therefore, the large-lead screw is generally a single nut.

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The Areswin Company manufactures and markets linear motion,ball screw,ball spline,bearings,nut bracket of ball screw,motor bracket,support unit of ball screw,coupling, and axis industria robot. focus on retail and wholesale the world well-known brands, including STAF,GTEN,HIWIN,TBI, PMI, ABBA (Taiwan), and NSK, THK, NTN, NACHI(Japan), and FAG, INA(Germany), TIMKEN,(USA) and SMC, SAMICK (South Korea), SKF(Sweden) and LMA(China).

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