Chapter 1 Overview of the RSF-B mini series
- 10 -
1-10 Allowable load
1-10-1 Allowable radial load and allowable thrust load
The allowable radial load and thrust load of the output shaft are shown below.
The allowable radial load F
r
is obtained with
respect to the center (L/2) 0 point of the output
shaft.
The values in the following table are designed
by considering the life of the bearing.
The allowable values must not be exceeded.
Model
Item
RSF-8B
RSF-11B
RSF-14B
Allowable radial load (F
r
)
N
196
245
392
kgf
20
25
40
Allowable thrust load (F
S
)
N
98
196
392
kgf
10
20
40
1-10-2 Radial load when the operating point is different
If the operating point of radial load is different, the allowable radial load value is also different.
The relation between radial load position L
R
and allowable radial value F
R
is obtained from the
following formula.
The allowable values must not be exceeded.
r
R
a
a
R
F
L
L
L
F
+
=
F
R
: Allowable radial load at distance L
R
from the 0 point [N]
F
r
: Allowable radial load at the 0 point [N]
L
a
: Distance from the bearing starting point to the 0 point [mm]
L
R
: Distance from the position where radial load is exerted to the 0 point [mm]
L
: Shaft length [mm]
Model
Item
RSF-8B
RSF-11B
RSF-14B
Allowable radial load (F
r
)
N
196
245
392
kgf
20
25
40
L
a
mm
23
30.5
43.2
L
mm
20
22
25
L
R
F
R
L
L/2
F
S
L
a
0 point
F
r
