20 U Series CE Family Product Manual, Rev. A
2.1 Drive mounting
You can mount the drive in any orientation using four screws in the side-
mounting holes or four screws in the bottom-mounting holes . See Figure
3 for drive mounting dimensions. Follow these important mounting
precautions when mounting the drive:
•Allow a minimum clearance of 0.030 inches (0.76 mm) around the
entire perimeter of the drive for cooling.
•Use only 6-32 UNC mounting screws. Insert the screws no more than
0.20 inch (5.08 mm) into the bottom mounting holes and no more than
0.14 inch (3.55 mm) into the side mounting holes.
•Do not overtighten the mounting screws (maximum torque: 6 inch-lb).
•Do not use a drive interface cable that is more than 18 inch es long.
Figure 3. Mounting dimensions—top, side and end view
1.00 ± 0.028
(25.4 ± 0.7)
3.72 ± 0.03
(94.5 ± 0.8)
4.00 ± 0.02
(101.3 ± 0.5)
3.750 ± 0.010
(95.25 ± 0.25)
5.75 ± 0.03
(146.2 ± 0.8)
4.000 ± 0.010
(101.60 ± 0.25)
3X.250 ± .015
(6.35 ± 0.38)
(both sides)
2.23 ± 0.03
(56.6 ± 0.8)
0.230 ± 0.015
(5.84 ± 0.38) 0.180 ± 0.015
(4.57 ± 0.38)
2.362 ± 0.010
(59.99 ± 0.25)
1.750 ± 0.010
(44.45 ± 0.25)
3X 6-32 UNC-2B
max. insertion depth
0.14 (3.6) both sides
4X 6-32 UNC-2B
max. insertion
depth 0.22 (5.6)
0.125 +0.030, –0.005
(3.18 +0.76, –0.13)
0.630 +0.030, –0.005
(16.00 +0.76, –0.13)
Note: Dimensions are shown in inches (mm).
2.375 +0.030, –0.005
(60.33 +0.76, –0.13)
Recommended
case temperature
measurement location
Recommended
case temperature
measurement location