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MIL34 Ball screw torque curves

Plastic nut are standard but nut can also be delivered in bronze (material H59) with same size as plastic nut and same price as plastic.Anti-backlash nut in plastic and Teflon coated lead screw are also available for all sizes external nut motors.Optional can rolled or ground ball screw be delivered in selected pitch e.g.  5mm/rev. Please ask JVL for more information.
Lead Code. [y] Travel Per Rev.*
[mm] (inch)
[N] (lbs.)
Screw Dia.
[mm] (inch)
5.0 (0.197) 2100 (472.1) 15.875 (0.625)

*Based on 200 step/rev motor. Divide with 200 to get travel per step. If JVL driver with 409600 step/rev are used divide with 409600 to get travel/step (SMC85/MIS34/MIL34).
Screw dia 15.875 weight ??? g/mm.
Position accuracy for Ballscrew =  ±0.05
Axial play = 0.02/300mm
Torque curve not available. Please ask JVL.
Below formula can be used to make a quick estimation for force calculation:
F=M*6280*n/p [ M: Torque in Nm , n: Efficiency of ball screw, p: Pitch in mm/rev ]
Eg Pitch 5mm/rev and 90% efficiency. Motor can deliver about 3Nm at low speed.
F= 3Nm*6280*0,9/5mm/rev = 3391 N at low speed.

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