Continuous Rotation Damping torque 0.89 in-lbs to 26.55 in-lbs
In comparison to other rotary dampers, the ACE FFD product family does not need any fluid to generate the damping torque, but rather works on the principle of friction. That means temperature or speed changes have virtually no influence on the damping torque. The FFD is available in two different body variants and two types of bearings. ACE rotary dampers are maintenance-free and ready-to-install.
Rotary damper products are built to metric specifications. For precise measurements, please refer to the ACE rotary damper catalog or contact an application expert.
Execution Standard assembly, bi-directional bearing
Damping torque 0.89 in-lbs to 26.55 in-lbs
Damping direction right
Construction size Ø 0.98 in to 1.18 in
Rotational speed max. 30 rpm
Lifetime 30,000 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 14 °F to 140 °F
Material Outer body: Plastic
Mounting In any position
Information to the shaft Ø +0 / -0.001 Hardness > HRC55, surface smoothness RZ < 1µm
Technical Notes
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.