Ball Screw Inertia Calculation

A ball screw consists of a threaded shaft and a nut and either one can act as the traversing component.

Ball screw inertia calculation. Me en 7960 precision machine design ball screw calculations 4 3 based on load a ball screw transforms rotational motion into translational motion. As mentioned previously acceleration torque is made up of inertia and acceleration rate. Load torque calculation wire or belt drive rack and pinion drive. Lead screw worm gear drive motor mass moment of inertia equation.

Manufacturers typically provide the inertia value or a simple equation to calculate the inertia value of drive systems such as ball screws. Load torque calculation pulley drive. General engineering and design data menu industrial electric motor application design and installation menu. Ball screws work in a similar fashion to ball bearings where hardened steel balls move.

In ball screw terminology we commonly refer to lead which is the linear distance the screw moves for every complete rotation rather than pitch which is the linear distance between screw threads the equation for drive torque. Cad designer 15 875 views. Ball screw examples of selecting a ball screw high speed transfer equipment horizontal use selection conditions table mass m 1 60kg work mass m 2 20kg stroke length s 1000mm maximum speed v max 1m s acceleration time t 1 0 15s deceleration time t 3 0 15s number of reciprocations per minute n 8min 1 backlash 0 15mm. Introduction to ball screws misumi.

Use these equations and calculator to determine the amss moment of inertia of a lead screw worm gear drive system. Load torque calculation ball screw drive. Thrust force the sum of all external forces such as machining load gravity friction inertial forces etc. Ask question asked 3 years 6 months ago.

How to design ball screw in solidworks duration. J d inertia of drive ball screw belt rack pinion j e inertia of external moved load. The results of my derivation are supported by the catalogue i found that lists the calculation for the force torque conversion for a lead screw. Calculating load inertia in a leadscrew system.

Ball lead screw motor sizing forms calculate the necessary torque speed stopping accuracy and system inertia important when selecting a proper motor for the application. But if the inertia value isn t provided it must be calculated manually. Td fa p 2000 π η demonstrates that torque t is directly proportional to the lead of the screw p.