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TTQM2845 Fenner Drives Trantorque OE - Metric - Steel - 28mm

SKU TTQM2845 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® OE - Steel - Metric

  • The Trantorque OE Series 28mm Keyless Bushing provides a high capacity, zero-backlash shaft/hub or coupling connection of mounted components to shafts measuring 28mm in diameter by means of a mounted mechanical interference fit and transmits up to 505 Nm of torque.
  • Trantorque OE Series 28mm Keyless Bushings provide a zero-backlash frictional connection that will never wear or pound out and can accommodate high-torque, thrust, bending, and/or radial loads. While maintaining a minimal OD/ID ratio, The Trantorque OE Series Keyless Bushings also have exceptional concentricity and the ability to accommodate bending loads. They also have limited axial movement during installation. All Trantorque units use a single hex nut for speed and simplicity of installation.

  • 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 OE Torque Transmission: 515 Nm
Axial Movement: Approximately 1.9mm Compliancy: RoHS
Component Bore Diameter: 45mm Hub Pressure: 101 N/mm2
Installation Torque: 240 Nm Internal/ External: Internal
Material: Steel Metric/Inch: Metric
Releasing/ Locking: Locking Self-Centering: Yes
Shaft Diameter: 28mm Taper: Single
Thrust: 37 kN

Part Number d D L L1 Wrench Size B Ma* Mt *
Steel (mm) (mm) (mm) (mm) A
(mm) Install
TTQM1732 17mm 32mm 22mm 29mm 30mm 6mm 110 211 25 137
TTQM1832 18mm 32mm 22mm 29mm 30mm 6mm 110 223 25 137
TTQM1932 19mm 32mm 22mm 29mm 30mm 6mm 110 236 25 137
TTQM2035 20mm 35mm 24mm 32mm 32mm 7mm 150 303 30 138
TTTQM2235 22mm 35mm 24mm 32mm 32mm 7mm 150 333 30 138
TTQM2438 24mm 38mm 25mm 34mm 36mm 7mm 185 405 34 129
TTQM2538 25mm 38mm 25mm 34mm 36mm 7mm 185 422 34 129
TTQM2845 28mm 45mm 29mm 41mm 46mm 11mm 240 515 37 101
TTQM3045 30mm 45mm 29mm 41mm 46mm 11mm 551 515 37 101
TTQM3250 32mm 50mm 30mm 43mm 50mm 11mm 265 601 38 87
TTQM3550 35mm 50mm 30mm 43mm 50mm 11mm 265 658 38 87

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 - 0.6
Thin Dense Chrome Coated Steel - 0.9
Stainless Steel - 0.3
* When installing Trantorque OE 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%.