Ball Screw Axes

A ball screw axis consists of a linear module with ball screw by which a carriage can be moved back and forth, and a rotatory servo motor providing for the motion.

Advantages of the ESR ball screw linear modules:

high forces possible
suitable for moving high loads
high repeatability

The linear modules can be combined with all ESR AC servo motors.

Characteristics of the ESR Ball Screw Linear Modules

Two designs with a total of seven sizes
Made of hard anodized aluminum profile
Ball screw drive for low friction loss
Integrated guide rail system
Protection against dust and other pollution by cover strip
Central lubrication of ball screw drive and guide rails via lubrication nipples
Low wear
No reference run (homing) required in combination with multi-turn motor position sensors (optional)
Mounting via T-slots
Can be combined to form a multi-axis system

Technical Specifications

Order number	MZ 441x	MZ 443x
Design	made of hard anodized aluminum profile (according to EN 12020-2 medium)
Max. profile length	2 m *	5.8 m *
Technology	Ball screw drive (optionally trapezoidal thread)
Protection against pollution	Cover strip made of antistatic polyurethane (optionally stainless steel)	Cover strip made of stainless steel
Guide rail system	Recirculating balls preloaded without backlash (two parallel guides providing for particularly high load-bearing capacity and rigidity)	Recirculating balls preloaded without backlash
Traveling speed	up to 2.5 m/s
Max. acceleration	up to 20 m/s²
Max. force	up to 29.6 kN
Stroke	30 .. 2,000 mm *	40 .. 5,740 mm *
Repeatability	±0.02 mm (ISO7 precision, standard) ±0.01 mm (ISO5 precision, optional)
Width	90 .. 200 mm	65 .. 110 mm
Height	40 .. 100 mm	85 .. 130 mm
3D CAD data	on request
Matching servo motors	MR series AC servo motors

* higher lengths/strokes on request

On request, we will be pleased to send you further information.

➜ Overview of all linear drive systems.