Chapter 4 Preparations for installation
15
4.2.5. Liquid sealant
Seal the shaft mounting surface of the reduction gear and shaft installation component using liquid
sealants. Prepare the following liquid sealants recommended by Nabtesco.
Table 4-7
Name
Manufacturer
Characteristics and applications
ThreeBond 1211
ThreeBond
• Silicone-based, solventless type
• Semi-dry gasket
HermeSeal SS-60F
Nihon Hermetics Co.
• One-part, non-solvent elastic sealant
• Metal contact side (flange surface) seal
• Any product basically equivalent to
ThreeBond 1211
Loctite 515
Henkel
• Anaerobic flange sealant
• Metal contact side (flange surface) seal
Do not use the above liquid sealants if the component of the customer’s device is made of copper or
copper alloy.
4.2.6. O-ring
Use the O-rings indicated in the separately provided “Outer dimensions” drawings and specification
sheet. If there is no indication, select the size of the O-ring appropriate for the surface to be sealed.
For the catalog products described in “2.2. Parts codes of catalog products”, prepare the O-rings with the
numbers listed in Table 4-8, 4-9 and Table 4-10.
If it is difficult to purchase any of the O-rings in the table below, select an O-ring based on the design
standard of each manufacturer by referring to the dimensions listed above. Selecting an
inappropriate O-ring could cause leakage of the lubricant.
O-ring (I)
If the shaft mounting surface and shaft installation component of the reduction gear cannot be sealed
using liquid sealants, prepare the O-ring (I). The O-rings applicable to the O-ring (I) for the catalog
products described in “2.2 Parts codes of catalog products” are listed in the table below. When an O-ring
(I) is used, seal the mounting holes on the shaft installation component using the high-torque seal
washers..
(Reference: “4.2.5 Liquid sealant”)
O-ring (I)
JIS B 2401: 2012, SAE AS568
Note
Note
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