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Spring-Applied Brakes NFF4F | Stromag

The Four-Face Brake NFF4F-LS has been developed for industrial and crane applications requiring for slow running drives a very high brake torque with closed design. With a compact design and a high wear-resistance the brake assures a high durability.

Applications: Cranes, conveyors, assembling lines, presses with electric torque motor drives, electric gearless drives and heavy industry.


  • Braking torque range 4000 - 40000 Nm
  • Degree of protection up to IP 66
  • Four-face brake with closed design
  • High brake torque in small space
  • All components with special surface protection
  • Simple assembly to motor, no carrier support required
  • Concentricity through body for tacho fixing proven reliable design with a very low inertia
  • Sealed inspection holes for air gap measuring or lining wear
  • High heat dissipation


  • (A4) NFF4F-LS Brakes for Sow-Running High Torque Drivelines
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Literatur zum Thema

  • (A4) Stromag Clutches and Brakes for Energy Efficient Drives with High Standards
  • Stromag Line Card