Chapter 4 Preparations for Installation
11
4.2.3. Reduction gear installation bolts
• Prepare bolts according to the size and quantity of the motor mounting flange, case installation bolts and
shaft installation bolts indicated in the separately provided “External dimensions” drawings and specification
sheet.
• For the catalog products described in “2.2. Parts codes of catalog products”, refer to the size and quantity of
the bolts listed in Table 4-2 and Table 4-3.
• Select the appropriate bolt length based on the mounting dimensions of the components prepared by the
customer and the reduction gear.
• Prepare the following bolts recommended by Nabtesco:
Hexagon socket
head cap screw
JIS B 1176: 2006
Strength class
JIS B 1051: 2000 12.9
Thread
JIS B 0209: 2001 6 g
For motor mounting flange and case
installation component
Table 4-2
For shaft installation component
Table 4-3
Model
Nominal size
× pitch
(mm)
Required Qty.
Model
Nominal size ×
pitch
(mm)
Required Qty.
RV-25N
M5 × 0.8
16
RV-25N
M6 × 1.0
M10 × 1.5
3
6
RV-42N
M6 × 1.0
16
RV-42N
M10 × 1.5
9
RV-60N
M6 × 1.0
20
RV-60N
M8 × 1.25
23
RV-80N
M8 × 1.25
16
RV-80N
M8 × 1.25
24
RV-100N
M8 × 1.25
18
RV-100N
M10 × 1.5
21
RV-125N
M10 × 1.5
16
RV-125N
M10 × 1.5
21
RV-160N
M10 × 1.5
16
RV-160N
M12 × 1.75
18
RV-380N
M12 × 1.75
24
RV-380N
M12 × 1.75
33
RV-500N
M12 × 1.75
28
RV-500N
M12 × 1.75
33
RV-700N
M12 × 1.75
32
RV-700N
M16 × 2.0
26