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Frameless Torque Motors
Torque Motors

QTR 133 Series – Frameless Torque Motor

Frameless rotary torque motor with continuous torque from 2.6 Nm to 21.9 Nm, peak torque from 3.8 Nm to 35.3 Nm and speeds up to 10,807 rpm. A 133 mm outside diameter with an 84 mm through bore.

Product Overview

Motion Type

Rotary
Technology

Frameless Torque
Product Range

Torque Motors
Series

QTR 133

Key Performance Specs

  • Continuous Torque Up To: 21.9 Nm
  • Speed Up To: 10807 rpm
  • Outside Diameter: 133 mm
  • Inside Diameter: 84 mm

Key Features

  • Continuous torque range 2.6 Nm to 21.9 Nm
  • Peak torque range 3.8 Nm to 35.3 Nm
  • Speed up to 10,807 rpm at maximum voltage
  • Speed up to 1,641 rpm at 48 V
  • Motor outside diameter 133 mm
  • Motor inside diameter 84 mm
  • N, Y and Z winding variants available
  • PTC 1 kΩ and KTY83-122 thermal protection
  • Frameless direct drive design

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QTR 133 Series – Frameless Torque Motor

QTR 133 Series of Frameless Rotary Torque Motors

Introducing the QTR 133 Series frameless rotary torque motor by Tecnotion. Torque motors excel in their direct drive capabilities, eliminating the need for a transmission or gearbox. The rotor of the torque motor is securely attached directly to the driven part, reducing transmission losses and eliminating the cost and maintenance associated with additional components. With no contact between the rotor and stator, mechanical wear is eliminated, resulting in reduced maintenance and extended lifespan. These motors provide a high continuous torque throughout the entire rev-range. The required torque and available space play a role in determining the motor’s diameter and width. This allows for slim motors in height but large in diameter for applications such as axles and turntables, or compact yet high-torque motors with similar height and diameter dimensions.

Applications for Torque Motors

Frameless torque motors find applications in a variety of industries and fields. They are commonly used in robotics, precision manufacturing, semiconductor manufacturing equipment, medical devices, aerospace, and defence systems. The compact design and high torque output make them ideal for applications where space is limited, yet high-performance and direct drive capabilities are required. Frameless torque motors are also well-suited for tasks that demand precise and accurate motion control, such as rotary tables, indexers, and positioning systems. Their versatility and reliability make them a preferred choice for demanding applications across multiple industries.

Product Specifications: QTR 133 Series – Frameless Torque Motor

QTR 133 Series Symbol Unit 133-17 N 133-17 Y 133-17 Z 133-25 N 133-25 Y 133-25 Z 133-34 N 133-34 Z 133-60 N
Motor type, max voltage ph-ph (3-phase synchronous) V ac rms (V dc) 230 (325) 420 (600)
Ultimate torque (magnet @ 25°C) Tu Nm 5.6 6.4 6.4 11.9 13.5 13.5 20.6 20.3 55.5
Peak torque (magnet @ 25°C) Tp Nm 3.8 4.3 4.3 7.5 8.6 8.6 13.1 12.9 35.3
Continuous torque (coil @ 100°C) Tc Nm 2.6 2.6 2.6 5.9 6.0 6.0 10.0 9.5 21.9
Maximum speed @ 48 V (@ Tc) nmax rpm 317 839 1641 33 345 788 0 478 0
Maximum speed @ max. voltage (@ Tc) nmax rpm 3514 6340 10807 1825 3389 5930 946 4040 724
Motor torque constant (up to Ic) Kt Nm/Arms 0.58 0.33 0.19 1.16 0.65 0.38 2.09 0.56 5.57
Motor constant (coils @ 25°C) Km (Nm)²/W 0.058 0.061 0.061 0.167 0.177 0.180 0.344 0.310 1.08
Ultimate current (magnet @ 25°C) Iu Arms 13.8 28.2 48.8 13.8 28.2 48.8 13.3 48.8 13.5
Peak current (magnet @ 25°C) Ip Arms 7.56 15.40 26.70 7.56 15.40 26.70 7.31 26.70 7.37
Maximum continuous current (coils @ 100°C) Ic Arms 4.43 8.10 14.00 5.05 9.30 16.10 4.77 16.90 3.93
Back EMF phase-phase peak Ke V/krpm 50 28 16 99 56 32 179 48 476
Back EMF phase-phase rms Ke V/krpm 35 20 11 70 39 23 126 34 337
Coil resistance per phase (coils @ 25°C ex. cable) R Ω 1.93 0.58 0.20 2.70 0.80 0.27 4.23 0.34 9.58
Coil induction per phase (I < 0.6 Ip) L mH 3.74 1.20 0.40 5.87 1.87 0.62 11.50 0.85 36.6
Electrical time constant (coils @ 25°C) τe ms 1.9 2.1 2.0 2.2 2.4 2.3 2.7 2.5 3.8
Poles Nmgn nr 28
Continuous power loss (coils @ 100°C) Pc W 147 147 147 268 268 268 375 375 577
Thermal resistance (coils to mount. sfc.) Rth °C/W 0.51 0.51 0.51 0.28 0.28 0.28 0.20 0.20 0.13
Thermal time constant (up to 63% max. coil temp.) τth s 23 27 27 18 21 21 19 19 29
Temperature cut-off / sensor PTC 1 kΩ / KTY83-122

All specifications ±10%. Values assume a mounting surface at 20°C with the motor driven at maximum continuous current. Thermal resistance is based on radial mounting of the stator lamination stack. Maximum allowable speed for QTR-A 133 series motors is 14,000 rpm; please contact us for high speed applications.

Product Dimensions: QTR 133 Series – Frameless Torque Motor

QTR 133 Mechanical Symbol Unit 133-17 N 133-17 Y 133-17 Z 133-25 N 133-25 Y 133-25 Z 133-34 N 133-34 Z 133-60 N
Stator OD ODs mm 133
Rotor ID IDR mm 84
Motor height Hmotor mm 17 25 34 60
Lamination stack height Hlam mm 8 16 24 48
Rotor inertia JR kg·m² 2.1E-04 4.2E-04 6.2E-04 1.2E-03
Stator mass (excluding cables) MS g 414 717 1037 2090
Rotor mass MR g 106 208 309 613
Total mass (excluding cables) MT g 520 925 1346 2703
Cable mass (all cables) m g 63 90 90 63 90 90 63 90 95
Cable type (power), length 0.5 m d mm (AWG) 6.5 (20) 6.7 (14) 6.7 (14) 6.5 (20) 6.7 (14) 6.7 (14) 6.5 (20) 6.7 (14) 9.6 (18)
Cable type (sensor), length 0.5 m d mm (AWG) 4.3 (26)

Product Technical Drawings: QTR 133 Series – Frameless Torque Motor

QTR 133 Series - Frameless Torque Motor technical drawing

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