905 - Mechanical safety chucks with V squared shaped and sliding ring

They are used to rewind or unwind material in rolls on expanding airshafts; they allow to load or unload rolls more easily without moving the airshaft directly.

Sliding safety chuck (sliding disc opening) with 45° square ends. Versions light and heavy, with (without shaft.

Several tilting and sliding models are available to suit different loads, any model can be both foot-mounted and flange-mounted.

Standard sizes available for this Model are listed below.


  • Capacity Perp Pair: from 6.000 N to 7.056 N (Reel weight)
  • Max Torque Transmissible: from 235 Nm to 940 Nm
  • Max Speed: from 300 RPM to 900 RPM
  • Square Standard Socket: from ? 25-30 to ? 30-50
  • Standard Shaft Diameter: from Ø 25-30 to Ø 25-45

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