I
Instruction for Damper Attachment
1. When attaching a rotating shaft to its corresponding part. ensure that they
are firmly attached together by making the gap between them as small as
possible. A large gap may affect the damper's non-damping range. preventing
the lid from slowing down properly.
2. The damper's working angle is ±105', as shown on the right (second
diagram). Please determine where to attach it according to your needs.
3. The direction in which torque is generated varies according to the model.
Please select the appropriate model for your purpose.
4. Do not use the damper as a stopper. An external stopper must be attached
at the stopping position.
5. In FYN-LA3-L and FYN-LA3-R. the angular velocity in the reverse direction
(opposite to the direction of torque generation) should be 1 rad/sec or less.
FYT-LA3
FYN-LA3-L
i=ll•'®Mi lifM•DD•
Dffltit4N
RoHS Compliant
eProducts specification might be changed without notice.
FYN-LA3-R
Rotor position
indicator
I
How to Calculate the Damping Constant for Vane Dampers
1�
Delayed absorption in linear motion
2.
00
T
Delayed absorption in rotation
3.
M
�
-V-
-.;
0
0
Impact absorption in linear motion
1. Delayed absorption in linear motion
Formula (N·m/(rad/sec))= F�
2
t
2. Delayed absorption in rotation
Formula (N·m/(rad/sec))=
!
3. Impact absorption in linear motion
Formula (N·m/(rad/sec))=
Mf
2
F = Force or mass applied to the lever tip (N)
L = Distance between the centre of the damper
shaft and the lever's point of application (m)
d = Distance travelled by lever (m)
t = Travelling time of the lever (sec)
T = Torque applied to shaft (N-m)
w
= Angular velocity(rad/sec)
M = Mass(kg)
V = Velocity(m/sec)
L = Distance between the centre of the damper
shaft and the lever's point of application (m)
d = Distance travelled by lever (m)
