Rotary Dampers
FDN-70-L

The flat disc brake for one direction of rotation

Continuous Rotation
Damping torque 11.0 +/- 1.0 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.
FDN-70-L
Continuous Rotation

Dimensions

FDN-70-L
A95 mm
B82 mm
C10 mm
D6.5 mm
R6.5 mm
E70 mm
F65.4 mm
G1.6 mm
H13 mm

Technical data

Damping torque 11.0 +/- 1.0 Nm

Damping direction left

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 accessories available on request.

General information

Application Examples

Rotary Dampers - FDN
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...

Application Areas

  • conveyor systems
  • transport systems
  • furniture industry
  • locking systems
  • sports equipment
  • Amusement industry
  • offshore industry
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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