SIBRE USB Disc Brakes

SIBRE USB Disc Brakes

The disc brakes type USB are designed considering the specific demands of crane-, lifting- and material handling applications – they are the consequent result of the continuous research and development performed by SIBRE.

Combined with another improvement of the SIBRE lining wear compensator the advantages allow to consider USB type brakes the first virtually maintenance-free disc brakes.

The USB-brake family comprises of various sizes and thus provides solutions for many brake tasks.

USB Disc Brake Data Sheets:




SIBRE USB Disc Brakes

USB Brake Design Advantages

  • Robust design with all bearings and pivot points fitted with maintenance free, close tolerance bushes
  • Pins made of rust- and acid resistant stainless steel
  • Optimized lever geometry resulting in maximum ratio and generous lining clearance
  • Braking torque independent of disc rotating direction
  • Square spring tube with graduated torque scale to facilitate torque adjustment
  • Easily replaceable and low cost  brake linings, asbestos free quality for high circumferential speed up to 85 m/sec. and max. disc temperature of up to 850°C
  • Reduced maintenance by means of SIBRE-wear-compensator
  • Equal clearance due to SIBRE-synchronisation linkage

Types with braking torque

  • 0 Nm – 610 Nm              USB2-05
  • 390 Nm – 5020 Nm       USB3-I
  • 370 Nm – 4000 Nm       USB3-I-M
  • 2650 Nm – 31850 Nm    USB3-III
  • 390 Nm – 4830 Nm       USB-C 31
  • 1400 Nm – 5500 Nm     USB-C 32
  • 2450 Nm – 16900 Nm   USB-C 33
  • 900 Nm – 23000 Nm     USB-C 53

Design Characteristics

  • Brake force increased by more than 70 % due to optimised eccentre position
  • Increased utilisation factor of available release force by means of springs with low c-rate
  • Drastically increased efficiency and increased life time of bushings due to centric application of spring force, no more bending stress on knee lever
  • The knee lever provides the requested dead weight and forms an enclosure protecting the uppermost hingepoints and the tension rod against dust and damages
  • The SIBRE synchronisation linkage, known since many years from the SIBRE drum brakes, was incorporated in this new disc brake and guarantees an equal and synchronuous movement of brake arms. A manual adjustment of equal air-gap is no longer required.
  • Lean and compact envelope dimensions
  • No more right handed or left handed design

Contact a Kor-Pak representative today for more information about SIBRE USB Disc Brakes.  Brake accessories are also available including: Discs, Drums, Couplings, Actuators, Spare Parts.  Kor-Pak can handle all of your material needs and is a full-service provider.