Fail-safe disc brakes

USB 5

datasheet

USB 5 represents the new generation of SIBRE “Maintenance Free” Fail-safe Disc Brakes.

Combining the benefits of both spring and weight applied braking, the USB range is specifically designed to meet the demands of crane-lifting and material handling applications.

Applications

Primarily used as both Dynamic or Holding brakes for High Speed shaft applications, but also suitable for Low speed applications.
Ideal as High Speed brakes for Main hoist and Boom Hoists in Container Cranes and Ship loaders, as well as for Conveyor Drives, Bucket Wheel Excavators, Stackers and Reclaimers.

Enhanced design optimizations and several new features offer even more efficient and reliable braking solutions over a wide range of applications.

Standardized functional principle across 5 sizes, for all crane applications (gantry, boom, slewing, hoist)
More stable friction coefficient and brake torque
Simplified alignment of the brake system
Reduced noise emission
Upgraded manual release system
Enhanced corrosion protection

Robust design with all bearings and pivot points fitted with teflon coated, white metal bushes
Rust and acid resistant stainless steel pins
Braking torque independent of direction of disc rotation
Graduated torque scale for easy adjustments
Replaceable, asbestos free, sintered brake linings for high circumferential speed up to 85 m/sec. and max. disc temperature of up to 850°C
Automatic lining wear compensation
The SIBRE-synchronisation linkage guarantees equal and synchronous movement of brake arms, ensuring equal lining clearance without any manual adjustment of air-gap.

Brochure

Data sheets

The types

USB 5 V

Braking torque:
6.000 – 29.000 Nm
Peak height:
280 mm
Weight:
285 kg

USB 5 III

Braking torque:
3.500 – 26.000 Nm
Peak height:
370 mm
Weight:
250 kg

USB 5 II

Braking torque:
1.300 – 9.800 Nm
Peak height:
280 mm
Weight:
175 kg