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Series <strong>MY3A</strong>/3B<br />
Model Selection<br />
The following are steps for selecting the MY3 series which is best suited to your application.<br />
Calculation of Guide Load Factor<br />
1 Operating Conditions<br />
Cylinder •••••••••••••••••••••••••••••••••••••• <strong>MY3A</strong>25-500<br />
Average operating speed υa •••••••••• 300 mm/s<br />
Mounting direction ••••••••••••••••••••••• Horizontal mounting<br />
Cushion •••••••••••••••••••••••••••••••••••••• Rubber bumper (δ = 4/100)<br />
W: Work piece (0.8 kg)<br />
Mounting Direction<br />
1. Horizontal z 2. Wall<br />
mounting<br />
mounting<br />
Page 948<br />
x<br />
y<br />
x<br />
y<br />
z<br />
3. Ceiling<br />
mounting<br />
Page 998<br />
x<br />
z<br />
y<br />
4. Vertical<br />
mounting<br />
Page 1042<br />
z<br />
x<br />
y<br />
2 Load Blocking<br />
<strong>MY3A</strong>25-500<br />
Refer to the pages mentioned above for actual examples of calculation for each orientation.<br />
Y<br />
Work Piece Mass and Center of Gravity<br />
Z<br />
5<br />
X<br />
Work piece<br />
no.<br />
W<br />
Mass<br />
(m)<br />
0.8 kg<br />
X-axis<br />
5 mm<br />
Center of gravity<br />
Y-axis<br />
10 mm<br />
Z-axis<br />
20 mm<br />
20<br />
Y<br />
10<br />
3 Calculation of Load Factor for Static Load<br />
m1: Mass<br />
m1 max (from q of graph <strong>MY3A</strong> ⁄ m1) = 10.7 (kg) • ••••••••••••••••••••••••••••••••••••••••<br />
m1<br />
Load factor 1 = m1 ⁄ m1 max = 0.8 ⁄ 10.7 = 0.08<br />
M1: Moment<br />
X<br />
M1 max (from w of graph <strong>MY3A</strong> ⁄ M1) = 4 (Nm) ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••<br />
m1<br />
M1 = m1 x g x X = 0.8 x 9.8 × 5 x 10 -3 = 0.04 (Nm)<br />
Load factor 2 = M1 ⁄ M1 max = 0.04 ⁄ 4 = 0.01<br />
M1<br />
M2: Moment<br />
Y<br />
M2 max (from e of graph <strong>MY3A</strong> ⁄ M2) = 0.8 (Nm) ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••<br />
M3 = m1 x g x Y = 0.8 x 9.8 x 10 x 10 -3 = 0.08 (Nm)<br />
m1<br />
Load factor 3 = M2 ⁄ M2 max = 0.08 ⁄ 0.8 = 0.1<br />
M2<br />
1130