Miki Pulley COUPLINGS, Manual

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S
E
R
V
O F
L
E
X
S
F
H
200
300
400
500
600
700
800
900
1000
2000
10000
9000
8000
7000
6000
5000
4000
3000
200 500
1000 2000 3000
SFH-150G
SFH-170G
SFH-190G
SFH-210G
SFH-220G
SFH-260G
Floating length [mm]
Operating limit rotation speed [min
–1
]
Spacer
Hexagon nut
Reamer bolt
Flange hub
Element
Collar
LF LF
LF LF
S
S S
¢
Operating limit rotation speed
¢
Mounting
Coupling size (SFH-S/G) 150 170 190 210 220 260
LF dimension [mm]
45 55 65 75 90 100
Coupling size (SFH-S/G) 150 170 190 210 220 260
S dimension [mm] 11 14 15 15 20 23
For the SFH-G long spacer type, the rotation speed at which it
can be operated differs according to the spacer length selected.
Check the table below and make sure that the operating rotation
speed is equal or lower than the operating limit rotation speed.
The SFH model is a parts-delivered product. Shafts are linked
after installing the flange hub on each shaft, centering the flange
hub, and finally installing the element (spacer). The SFH-S type
can even insert shafts after assembling couplings by installing
elements on the flange hub and centering them.
(1) Remove dust, dirt, and oil, etc. from the shaft and the inner-
diameter part of the flange hub. (Grease should be wiped
away with a waste cloth, etc. or by degreasing as required.)
(6) Make sure that the dimension between flange hub parts (S
dimension) is kept within the axial displacement tolerance set
for the basic value. However, this value is a permissible value
assuming that both parallel offset and angular misalignment
values are zero. Adjust the value to be as small as possible.
(2) Insert a flange hub into the target shaft. Make sure that the
insertion length of the coupling is maintained so that the
target shaft is in contact with the entire length of the flange
hub (LF dimension) as illustrated below.
(3) Install the other flange hub on the target shaft as in (1) and (2).
(4) Center the shaft (parallel offset and angular misalignment)
with the flange hub inserted and adjust the shaft intervals.
(5) For the SFH-S type, move the flange hub parallel to the
shaft, insert an element between the two flange hubs, and
temporarily assemble it using reamer bolts, a collar, and
hexagon nuts. For the SFH-G type, insert reamer bolts into
both flanges from the flange side and temporarily assemble
it using hexagon nuts through the element and collar. After
doing this, move the flange hub parallel to the shaft, insert
a spacer between the two flange hubs, and temporarily
assemble it using reamer bolts, a collar, and hexagon nuts.
Design Check Items
SFH MODEL
¢
SFH-S type
(7) Check that the element is not deformed. If any deformation
is found, the following can be considered: unnecessary
force has been applied in the axial direction or there is a
lack of lubrication among the collar, bolts, and plate spring.
Adjust the deformation so that it is corrected to normal. On
the reamer bolt-bearing surface, this might be improved by
coating a small amount of machine oil. However, do not use
oils such as those containing molybdic extreme-pressure
agents.
¢
SFH-G type
¢
SFH-S type
¢
SFH-G type