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TTQM0720 Fenner Drives Trantorque Mini - Metric - Steel - 7mm

SKU TTQM0720 Fenner Drives

Please Note: If the manufacturer is out of stock, a minimum order quantity may apply. If this applies to your order you will be contacted by our customer support team.


Fenner Drives - Power Transmission - Keyless Locking Devices - Trantorque® Mini - Steel - Metric

  • The Trantorque Mini Series 7mm Keyless Bushing provides a high capacity, zero-backlash shaft/hub or coupling connection of mounted components to shafts measuring 7mm in diameter by means of a mounted mechanical interference fit and transmits up to 36 Nm of torque.

  • Best Suited For: Small shaft applications where speed and simplicity of installation and repositioning are critical.

  • Exceptional concentricity and ability to accommodate bending loads
  • Limited axial movement during installation
  • All Trantorque units use a single hex nut for speed and simplicity of installation

  • Features of Fenner Drives Keyless Bushings:

  • Ability to transmit higher torques than keyed connections
  • True zero-backlash
  • Less equipment downtime
  • Ability to mount over existing keyways
  • Complete axial and radial adjustability
  • Simple installation, adjustment and removal

  • All Fenner Drives keyless locking devices operate using the simple wedge principle. An axial force is applied- by either a hex nut (Trantorque) or a series of annular screws (B-LOC)- to engage circular steel rings with mating tapers. The resulting wedge action creates a radial force on the tapered rings, one of which contracts to squeeze the shaft while the other expands and presses into the component bore.



Series: Trantorque Mini Torque Transmission: 36 Nm
Axial Movement: Approximately 1.9mm Compliancy: RoHS
Component Bore Diameter: 20mm Hub Pressure: 123 N/mm2
Installation Torque: 28 Nm Internal/ External: Internal
Material: Steel Metric/Inch: Metric
Releasing/ Locking: Locking Self-Centering: Yes
Shaft Diameter: 7 mm Taper: Single
Thrust: 10 kN

Part Number d D L L1 Wrench Size B Ma* Mt *
Steel (mm) (mm) (mm) (mm) A
(mm) Install
TTQM0316 3mm 16mm 10mm 19mm 13mm 3mm 14 10 6 112
TTQM0416 4mm 16mm 10mm 19mm 13mm 3mm 14 13 6 112
TTQM0516 5mm 16mm 10mm 19mm 13mm 3mm 14 16 6 112
TTQM0616 6mm 16mm 10mm 19mm 13mm 3mm 14 19 6 112
TTQM0720 7mm 20mm 11mm 22mm 16mm 3mm 28 36 10 123
TTQM0820 8mm 20mm 11mm 22mm 16mm 3mm 28 40 10 123
TTQM0920 9mm 20mm 11mm 22mm 16mm 3mm 28 47 10 123
TTQM1023 10mm 23mm 13mm 26mm 19mm 5mm 44 68 14 123
TTQM1123 11mm 23mm 13mm 26mm 19mm 5mm 44 75 14 123
TTQM1223 12mm 23mm 13mm 26mm 19mm 5mm 44 81 14 123
TTQM1426 14mm 26mm 16mm 29mm 22mm 5mm 66 123 18 113
TTQM1526 15mm 26mm 16mm 29mm 22mm 5mm 66 132 18 113
TTQM1626 16mm 26mm 16mm 29mm 22mm 5mm 66 140 18 113

NOTE: The data in the Mt Th and Ph is for a steel unit. To obtain data for other materials, use the multiplier provided below.

Steel - 1.0
Electroless Nickel Plated Steel - 0.8
Thin Dense Chrome Coated Steel - 1.0
Stainless Steel - 0.35
When installing Trantorque Mini with an open-ended wrench, a reduction in installation torque by 50% is recommended. This will result in a Transmitted Torque (Mt) reduced by 50%.