rotax® Rxhq 50                          rotary motor axis

Rxhq = high torque
The new, self-developed miniature hollow shaft servo motor ROTAX® Rxhq (high torque) impresses with its extremely compact design of 50 x 50 x 55mm / 1.96 x 1.96 x 2.16″. Direct drive motor, precise bearings and the single turn absolute encoder are completely integrated.

The direct drive servo motor is based on the magnetic flux technology of wind turbine generators. This generates a high torque at low speed. In figures this means a factor 2-3 higher torque with the same construction volume compared to a conventional direct drive of competitors.

The large hollow shaft with a diameter of 12mm / 0.47″ offers generous space for cables, vacuum or compressed air lines, light and laser beams, glass fibers and other media. Another advantage in this context is the short overall length of only 55mm incl. built-in encoder. The connection cable consists of only one cable and offers advantages in the space required for cable installation. Thanks to the precise, precompressed double bearing on the front flange, the drive achieves high rigidity with high axial torque capacity.

Ultra compact design and extra large hollow shaft
Length [mm] (in) Dimensions W x H [mm] (in) Hollow shaft opening [mm] (in) Weight Total [g] (Ibs)
50 (1.97)  50 x 55 (1.97 x 2.17) 12 (0.47) 440 (0.97)

 

Resolution (Inc.) Position Accuracy   Art. No.
  Unidirect. Bidirect.  
120'000 +/- 7 arc-sec +/- 11 arc-sec 121.00.00
162'000 +/- 5 arc-sec +/- 10 arc-sec 121.00.01
2'592'000 +/- 0.5 arc-sec +/- 1 arc-sec 121.00.02

 

Technical Data

Electrical Data                                                                                                   24V DC               48V DC

Nominal speed (1)   120'000 Inc.
Nominal speed (1)   162'000 Inc.
Nominal speed (1)   2'592'000 Inc.

nN min -1

500
500
200

1'500
1'300
200
Nominal torque
Peak torque
MN
MP
Nm
Nm
0.30 (2.66)
1.02 (9.03)
0.29 (2.57)
1.02 (9.03)
Stall torque M0 Nm 0.32 (2.83) 0.32 (2.83)
Nominal current
Peak current
IN
IP
A
A
2.30
7.85
2.28
7.85

(1) continuous operation with 25°C (77°F) ambient temperature and convection cooling
(ambient air)
(2) peak operation (duty 10%)

Mechanical Data  

Max. axial load   N (lbf) 1'750 (393.4)
Max. moment load   Nm (lbf . in) 5 (44.25)
Rotor moment of inertia JRot .  cm2 (lbf . in2) 400 (0.137)
Total weight m g (lbs) 440 (0.970)

 

Download files for ROTAX® Rxhq 50-12T0.3

DATASHEET_ROTAX® Rxhq 50.pdf (PDF)
CAD-FILES_STEP_ROTAX®_Rxhq 50.zip – Login
ACCESSORIES_CAD-FILES_STEP_ROTAX® Rxhq 50.zip – Login