Francis and Francis Ltd - FRANCIS and FRANCIS Ltd

'PK' OFFSET and 'LINEFLEX' flexible shaft couplings:

• Interchangeable with 'SCHMIDT' Offset and 'SEMFLEX'
• Same general dimensions and unique, drive features BUT:-
• More competitively manufactured in-house
• Larger +/-2mm axial tolerance (against +1/-0mm)
• 'Axially-limited' headed-pin/needle bearings (preeventing inadvertent component separation)

'Inkoflex,' 'KSO' (Oldham), 'Inkocross' (Axially loadable), Inkoturn and 'Elaflex' flexible couplings offer numerous other solutions, whilst Polygon and splined shafting, spindles and racking, with clamp rings and muff couplings; screw jacks, bevel gearboxes, spring-actuated/DC powered-release brakes and linear actuators complete the product palette.

This ‘pivoting’ Link-pairs (each at 90°) Coupling (interchangeable with the SEMIFLEX), compensates for all forms of shaft misalignment; a torsionally-stiff, true constant velocity, precision shaft connector. It accommodates ‘bedding down’, assembly, manufacturing tolerance, wear & specific operation alignment limitations. Angular velocity of connected shafts remains totally synchronised irrespective of misalignment and no restoring reaction forces are induced to load the support bearings. There are ‘Short’ length (…’K’), ‘High Torque’ (…/4), or pre-loaded bearing versions and even quill shafts can pass through the middle of the coupling.

Applications include:  Printing, Packaging & Mechanical handling machines, Testing units and Machine tools.

Shaft connections are via: (Std.) Flanged, or Bossed End Discs

The range accommodates OFFSETS & TORQUES between:-

• ‘0‘ (in-line) to +/- 2mm; TKN=37Nm (Datum); for the Smallest, up to
• ‘0‘ (in-line) to +/- 13mm; TKN=28,350Nm (Datum), for the Largest.