Linear Way L

Calculation of minimum length of bellows
The minimum necessary length of bellows is determined, by first calculating the necessary number of
accordion pleats as follows.
ns
S
smax smin
where, ns: Number of pleats (Raise decimal fractions.)
S: Length of stroke, mm
smax: Maximum length of one pleat (See Tables 15.1 and 15.2.)
smin: Minimum length of one pleat (See Tables 15.1 and 15.2.)
Lmin ns sminm510
Lmax SLmin
where, Lmin: Minimum length of bellows, mm
Lmax: Maximum length of bellows, mm
m: Number of internal guide plates(See Table 14.)
Table 14 Number of internal guide plates
Type of
bellows
P dimension of bellows ( 1 ) mm
over
incl.
Number of internal guide plates m
JEF
JRES
—
35
m
ns
-1
7
JES
JHS
JFS
JRXS … B
—
22
22
25
m
but m0, when ns20
m
ns
16
ns
12
but m0, when ns18
25
35
m
ns
8
Note( 1 ) : For dimension P, see Tables 15.1 and 15.2.
Remark : In calculating the number of internal guide plates m, raise the decimal fractions for JEF and JRES
and omit the decimal fractions for others.
Intermediate bellows
Another type of mounting plate is used for mounting bellows between slide units. Add the supplemental
code "/M" onto the identification number when ordering.
Reinforced bellows are also available, which are specially designed for use on long track rails or for lateral
mounting. The width A of reinforced bellows is greater than that of standard type bellows. For these
reinforced bellows, consult .
100