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Item description/product images

DescriptionMaterial:Base and rotary table aluminium alloy.
Hollow shaft stainless steel.
Pre-loaded worm gear steel.
Claw coupling aluminium with polyurethane coupling spider.
Version:Aluminium alloy anodised.Note for ordering:The unit is supplied with the position of cable outlet or control unit as shown in the drawing.Note:Rotary positioning stages for motorised adjustment and positioning tasks. The pre-loaded worm gear runs virtually play-free. The bearing of the worm shaft offers maximum radial rotational accuracy. Cables can be routed through the large bore in the hollow shaft. The adjustable positioning ring is used to determine the rotational reference point to the position of the assembled part. Proximity switches can be mounted with the optionally available sensor holder (21094). The suitable programming software and interface cable for the stepper motor with positioning control are available as accessories (25000-15).
The stepper motor with a resolution of 200 increments per rotation allows a single direction calculated positioning accuracy of 0.005 mm. The absolute single direction positioning accuracy 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.
Technical data:21085-08*:
Transmission ratio: 40:1
Backlash: <0.12°
Radial play: <0.02 mm
Max. input speed: 600 rpm
Max. duty cycle: 100 %
Required input torque: 0.15 Nm
Rigidity: see diagram
Rotation: 360°, infinite
Application temperature: +10 °C to +50 °C

21085-12*:
Transmission ratio: 55:1
Backlash: <0,1°
Radial play: <0.02 mm
Max. input speed: 600 rpm
Max. duty cycle: 100 %
Required input torque: 0.15 Nm
Rigidity: see diagram
Rotation: 360°, infinite
Application temperature: +10 °C to +50 °C
Special features:
RoHS
DownloadHere is all the information as a PDF datasheet:

Are you looking for CAD data? These can be found directly in the product table.
 Datasheet 21085 Positioning stages rotary with coaxial electric drive 432 kB
 Step motor: software and handbook 5,2 MB

Drawings

Positioning stages rotary with coaxial electric drive
Positioning stages rotary with coaxial electric drive

Item selection/filter

Order No.

SizeFormForm-TypeCable outlet alignmentControl alignmentCADAcc.PriceOrder
21085-0808Dwithout motor-- on request
21085-08118Ewith stepper motorright- on request
21085-08128Ewith stepper motorbeneath- on request
21085-08138Ewith stepper motorleft- on request
21085-08148Ewith stepper motorabove- on request
21085-08218Fstepper motor with control-right on request
21085-08228Fstepper motor with control-beneath on request
21085-08238Fstepper motor with control-left on request
21085-08248Fstepper motor with control-above on request
21085-12012Awithout motor-- on request
21085-121112Bwith stepper motorright- on request
21085-121212Bwith stepper motorbeneath- on request
21085-121312Bwith stepper motorleft- on request
21085-121412Bwith stepper motorabove- on request
21085-122112Cstepper motor with control-right on request
21085-122212Cstepper motor with control-beneath on request
21085-122312Cstepper motor with control-left on request
21085-122412Cstepper motor with control-above on request
Size

D2D3D4D5HH1H2H3H4H5LL1L2Filter
853,63612H7M44016,5104224,57022,644
12806020M64622,513636-993154
SizeF1
N
F2
N
F3
N
M1
Nm
M2
Nm
Filter
8200200801,21,8
1250050020033
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