Rotary positioning stages for high loading with coaxial electric...

go back

Products
- Product overview
  - Systems and components for machine and plant construction
    - Slides Guide rails Positioning stages Linear guide systems Position indicators
      - Motorised positioning table systems
        Rotary positioning stages for high loading with coaxial electric drive
        Rotary positioning stages for high loading with coaxial electric drive, Form F

Item description/product images

DescriptionMaterial:Body and rotary stage made of aluminium alloy.
Hollow shaft made of stainless steel.
Pre-loaded worm gear made of steel.
Dog coupling made of aluminium with polyurethane coupling spider.
Sensor holder made of aluminium.Version:Aluminium alloy anodised.Note:Rotary positioning stages for motorised adjustment and positioning tasks. The pre-loaded worm gear runs virtually play-free. The fixed bearing in the motorised rotary stages is designed as a cross roller bearing. This bearing can withstand extremely high tilting moments and lateral forces. Cables can be routed through the large hole in the hollow shaft. With the adjustable positioning ring the rotational reference point can be set, in relation to the position of the assembled part, as desired. Proximity switches can be mounted with the optionally available sensor holder (21085-02-901). Programming software for stepper motor with positioning control available as download.

The stepper motor with its resolution of 200 increments per revolution allows for a calculated positioning accuracy of 0.005 mm when coming from one direction. The absolute positioning accuracy when coming from one direction is 0.01 mm. The system can be operated with a duty cycle of 100 %.

Can be combined with all other parts of the same size.

Sensor holder: incl. 2 mounting screws DIN 7991 M4x20 VATechnical data:21085-02-110xxx:

Gear ratio: 20:1 / 40:1
backlash: < 0.02° (20:1) / < 0.10° (40:1)
radial play: <0.02 mm
max. input speed: 600 rpm
max. duty cycle: 100%
required input torque: 0.13 Nm
stiffness: see diagram
rotation: 360°, infinite
operating temperature: +10 °C to +60 °C
efficiency η: 0.33

21085-02-150xxx:

Gear ratio: 48:1
reverse play: < 0.10°
radial play: <0.02 mm
max. input speed: 600 rpm
max. duty cycle: 100%
required input torque: 0.13 Nm
rigidity: see diagram
rotation: 360°, infinite
operating temperature: +10 °C to +60 °C
efficiency η: 0.37

DownloadHere is all the information as a PDF datasheet:

Are you looking for CAD data? These can be found directly in the product table.

21085-02_F_Datasheet_33978_Rotary_positioning_stages_for_high_loading_with_coaxial_electric_drive--en

235 kB

Motorised positioning systems

1,1 MB

Step motor: software and handbook

5,2 MB

Drawings

Item selection/filter

Order No.	Item	Transmission ratio	Form	Form definition	L	B	H	D	Surface finish body	Price
21085-02-1504821	Rotary Positioning Table	48:1	F	stepper motor with control	257	175	73	60	anodised	on request
21085-02-1504822	Rotary Positioning Table	48:1	F	stepper motor with control	257	175	73	60	anodised	on request
21085-02-1504823	Rotary Positioning Table	48:1	F	stepper motor with control	257	175	73	60	anodised	on request
21085-02-1504824	Rotary Positioning Table	48:1	F	stepper motor with control	257	175	73	60	anodised	on request