torque coupling

Torque Limiters

Bibbigard® Torque Limiters

Bibbigard® Torque Limiters eliminate the problems associated with slow reaction electrical overload devices, shear pins which give a wide release torque variation, or slip clutches which may rapidly overheat.

Bibbigard® products can save you money - the initial cost is frequently more than covered by the saving in down-time even on the first overload.

  • Protect plant and transmission against overload.
  • Full bi-directional operation in any plane.
  • All metal, totally-enclosed construction.
  • Virtually no maintenance.
  • Provide years of trouble-free service.
  • Competitive first cost.

Many of our torque limiters have been purpose designed and manufactured to meet customers’ specific operating requirements. If you have any specific requirements please contact Bibby Transmissions for assistance.


Boring and Keywaying

Standard bores and keyways are manufactured to H8 and Js9 tolerances to BS4500: 1969, both in Metric and Imperial dimensions.


During assembly all units are packed with a 3% Molybdenum Disulphide (Mo S2) grease BP Energrease L21 M. Because of their uniquely fully enclosed design all units need only be stripped and re-packed with grease every two years. However, under extremely adverse conditions of environment and duty please consult Bibby Transmissions.

Running in Oil

All Bibbigard units can be run in oil if required without affecting performance.

Typical Applications:

Manual Reset

Type A:Conveyors, machine tools, wood working and paper machinery, pumps, textile machinery, test rigs, packaging machinery, quarrying plant, Post Office machinery, extruders, automatic furnaces and ovens.

Automatic Reset

Type B & C: Conveyors, bakery equipment, indexing drives, packaging, bottling and labelling machines, printing presses and special-purpose machines.

Power Take-Off Protection

Type FV: Vane, lobe, screw and centrifugal pumps. Vane and lobe blowers, please contact Bibby Transmissions for further details.