Miller SRL2-M Series
Rodless Cylinders
23
Figure 9 shows the maximum allowable moments for each of the three
types of loading: Bending, Radial, and Cross moments.
The sum total of each of these types of moments, divided by each of the
maximums, determines a Weight-Moment Factor (WMF) equal to or less
than 1.0. On horizontal mountings, the Total Weight (W
T
) should also be
divided by the maximum weight allowable (Figure 10) and factored into
the equation.
Maximum Allowable Moments (In.-Lbs.)
[M1]
[M2]
[M3]
Bore
Bending
Radial
Cross
Moment
Moment
Moment
Std. Mtg.
C-Mtg.
Std. Mtg.
C-Mtg.
Std. Mtg.
C-Mtg.
16
44
31
9
4
9
9
20
89
62
13
6
27
27
25
150
106
44
22
89
89
32
319
221
89
44
186
186
40
682
478
204
102
230
230
50
1363
956
283
142
372
372
63
2434
1708
460
230
673
673
Figure 9
Max. Allowable
Max. unsupported
Bore
Weight [W] Lbs.
Length [L] in.
at Max. Weight
STD. MTG.
“C” MTG.
16
32
16
17.7
20
45
23
21.7
25
81
41
35.4
32
140
70
29.5
40
218
109
39.4
50
331
165
51.2
63
522
261
63.0
W
T
T
T
W
W
Horizontal–Load Above
Horizontal–Load Below
Horizontal–Tube Support
L
L
L
L
Figure 10
Figure 11
Weight and Deflection
Figure 10 shows the maximum weight [W] in lbs. that the cylinder can
accept as well as the maximum length [L] between supports at the
maximum weight.
Horizontal Mountings:
W
T
+ M1 + M2 + M3
[W] [M1] [M2] [M3] = WMF
≤
1.0
Vertical Mountings:
M1 + M2 + M3
[M1] [M2] [M3] = WMF
≤
1.0
Acceptable length and weight combinations for the various bore sizes
can be determined from the charts in Figure 11.
To determine cylinder deflections under the weight (or resistive force
perpendicular to the piston table) without mid-support, see the graphs
on page 24.
24
0
0
48
72
96
120
144
168
192
L
Inches
L
Inches
600
500
400
300
200
100
W
T
Lbs.
24
0
0
48
72
96
120
144
168
192
W
T
Lbs.
150
125
100
75
50
25
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