MIL17 - Integrated Stepper Motor Linear Actuator

Size 17	Captive (C), External nut (E), Ball screw (B)	Non captive (N)
Axial load	Max 250N *	-
Axial play (Endplay)	Max 0.1 mm *	-
Radial load	0 N **	0 N
Radial play	0 mm	0 mm
Recommend load limit	Max 900N	Max 900N

* We don´t use wave washer and we applied pre-load to the bearings. So the axial play is very small, it comes from the mechanical deform when there is axial load, it should be less than 0.1mm.

** For the motor with screw shaft, there should be no radial load on the screw, otherwise the shaft will be bend and affect the linear accuracy.

 

 

 

 

 

Normally the lifetime will typical be as following but will depends on load, force, acceleration, speed, temperature and many other factors.

Nut Type	External Plastic	External Anti-backlash	Non-captive	Ball Screw
Lifetime (in cycles)	3.000.000	3.000.000	3.000.000	10.000.000

 

Standard motors are Class B rated for maximum temperature of 130 °C. Standard protection grade IP42. Motor can also be delivered as a 6 wire unipolar with 30% less force. Other travel per step, special nut and mechanical shaft dimensions/length can also be delivered. Weight and inertia depend upon shaft length. All measures in mm. All electrical tolerances 10%.