TYPES	Damping torque Nm	Damping direction
FDN-47-L	2.0 +/- 0.3	left
FDN-57-L	5.5 +/- 0.3	left
FDN-63-L	8.5 +/- 0.8	left
FDN-70-L	11.0 +/- 1.0	left

TYPES

Damping torque Nm

Damping direction

2.0 +/- 0.3

left

FDN-57-L

5.5 +/- 0.3

left

FDN-63-L

8.5 +/- 0.8

left

FDN-70-L

11.0 +/- 1.0

left

Rotary Dampers
FDN-47-L

The flat disc brake for one direction of rotation

Continuous Rotation
Damping torque 2.0 +/- 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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CAD Drawings

FDN-47-L

Continuous Rotation

Dimensions

A	65 mm
B	56 mm
C	6 mm
D	4.5 mm
R	4.5 mm
E	47 mm
F	42.8 mm
G	1.6 mm
H	10.3 mm

Technical data

Damping torque 2.0 +/- 0.3 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 R_Z < 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.

FDN-47-L

Continuous Rotation

Application Examples

Rotary Dampers - FDN

Protection systems for motor-driven cooker hoods

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

linear slides
pneumatic cylinders
handling modules
machines and plants
swivel units
electro-mechanical drives
hydraulic devices
conveyor systems
crane systems

These compact, cost-effective machine elements are ideal as end position dampers in linear axes, in toolmaking and tool machines, in hydraulic and pneumatic equipment, handling equipment and other applications.

CAD Drawings

Product-Downloads

Dimensions

Technical data

Mounting information

Safety information

On request

Sales data

Application Examples

Application Areas