FDN-57-R

The flat disc brake for one direction of rotation

Continuous Rotation
Damping torque 5.5 +/- 0.3 Nm

The damping direction of the flat, strong FDN rotary dampers with steel body can be either right or left rotation. They can brake directly in the pivot point. ACE rotary dampers are maintenance-free and ready-to-install.

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FDN-57-R
Continuous Rotation

Dimensions

FDN-57-R
A79 mm
B68 mm
C10 mm
D5.5 mm
R5.5 mm
E57 mm
F52.4 mm
G1.6 mm
H14 mm

Technical data

Damping torque 5.5 +/- 0.3 Nm

Damping direction right

Construction size Ø 47 mm to 70 mm

Rotational speed max. 50 rpm

Lifetime 50,000 cycles (1 cycle = 360° left-hand, 360° right-hand). Even after this time, the dampers still produce over approx. 80 % of their original damping moment. The service life may be significantly higher or lower, depending on the application.

Operating temperature range -10 °C to +60 °C

Material Outer body: steel; Output shaft sleeve: nylon with metal freewheel

Mounting in any position

Information to the shaft FDN-47: Ø 6 +0 / -0.03
FDN-57 to FDN-70: Ø 10 +0 / -0.03
Hardness > HRC55, surface smoothness RZ < 1µm mm

Mounting information

Turn the shaft in the opposite direction to the brake direction to avoid damaging the freewheel mount. No axial or radial forces may be induced via the shaft.

Safety information

Do not use rotary dampers as supports. Provide an external guide or support.

On request

Special designs available on request.

General information

Application Examples

FDN Cooker hood protection
FDN Cooker hood protection
For ergonomic handling, modern cooker hoods can be driven by a motor into an up position and then down again. When driven downwards, an AC load can result in a total loss through current being fed back into the voltage source. One of the tasks of the ACE rotary dampers type FDN-63-R is to prevent this. The modern machine elements are also built to provide protection against motor failure. ...

Application Areas

  • conveyor systems
  • transport systems
  • furniture industry
  • locking systems
  • sports equipment
On automotive or industrial applications, mechanical engineering, medical technology or the electronics and furniture industry, these machine elements are found in a number of different areas.
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