Brakes
The New Lenze Spring-Operated Brakes - Compact Modular BFK458 System
The Lenze quality standards for development, material, selection, production and assembly mean that the new spring-operated brakes fulfil the highest requirements. These electromagnetically released spring-operated brakes can be used in all cases where movable masses have to be braked in the shortest possible time or have to be held in a defined position.
The braking force is provided by compression springs. This means that the frictional brake torque is produced in the non-current state, i.e. also in the event of a supply failure. The brakes are released electromagnetically.
The new BFK458 range replaces the spring-operated brake types 14.448 / 14.449 and 14.450. The main components of the new modular system consist of the modules E (adjustable brake torque) and N (brake torque not adjustable). This system offers flexibility by combining the basic modules with further modular elements to cover the widest possible range of applications.
Product information
Efficient, complete range
- Nine sizes.
- Standard voltages 24V, 96V, 103V, 170V, 180V, 190V, 205V.
- Graduated torques from 2-600 Nm.
- Short delivery times for the complete range because of optimized logistics.
- CSA-NRTL design as a standard (approval scheduled for 6/98), that means that the product complies with the applicable UL and CSA requirements.
Versatile
- Modular design for almost all applications.
- Replacement product for the 14.448 and 14.450 series.
Torque transmission
- By friction in dry running.
Immediately ready to operate
- Preset air gap, simple and fast mounting.
- The rated torques are achieved by a special machining of the friction faces already after a few operations without running-in procedure.
- Fixed bearing not required at the brake side.
Long Life
- The insulation class F (155 degrees C) ensures a long life of the winding.
- The brakes are dimensioned for 100% duty time (current applied to the brake).
Low Maintenance
- Long, low-wear rotor/hub connection with proven evolvent toothing.
- Low-wear, asbestos-free friction linings.
- Air gap must be checked depending on the friction work.
Reliable
- The continually high product quality is based on the certified quality assurance system according to ISO9001.
- Manufacturing and testing according to VDE 0580.
Options
- Hand release for the manual release is available for all sizes; direction of release and mounting at both sides. (Exception: tacho brake).
- Low-noise designs.
- Different types of corrosion protection and the enclosure.
- Air gap and wear monitoring by microswitch (as from size 12).
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