High Stiffness Reducer Precautions for Use
DGS type Precautions for Use
Lubrication/sealing material
Grease is sealed in the reducer when it is shipped
from our factory.
However, there is no oil seal installed on the device side
input shaft.
If necessary, attach a seal to the device to prevent grease
leakage.
[Important] On the device side, fill 70% to 80% of the spatial volume with our
dedicated grease from the table below (sold separately).
For the DGS type, also fill the reducer with our dedicated grease (sold
separately).
Refer to the installation example for the filling location.
For
the filling amount, refer to [Reducer grease filling location filling amount] in
<Table 1>.
Precautions for the grease
1. Using grease in over or under designated amount or different grease may result in
performance deterioration or early damage.
2. Be careful that no dirt or moisture, etc., gets inside. Failure to follow this
precaution may result in failure.
The values shown above are representative values. Actual values may be slightly
different depending on manufacturing lots.
Handling precautions
- Avoid direct sunlight, and store the reducer in a well-ventilated place.
- Please check the “Safety Data Sheet (SDS)” before starting to use.
[Example calculation of grease filling amount for grease filling locations on
device side]
When the spatial volume of the device side is 24 cm3
Amount of grease filling on device side =
<Spatial volume> ×
<Grease density> × <Filling ratio>
= 24cm3 × 0.9g/cm3 × 75% = 16.2 g
Example of grease sealing space <Figure 1>
■ When installing this product, use the attached O-rings (two types).
Precautions for the O-rings
1. Before using O-rings, make sure that they are free from damage.
2. When mounting the O-rings, take care not to allow the adherence or entry of
foreign substances and dust.
3. Be careful to avoid O-ring twisting and biting during the installation.
4. The O-ring contact surface of your device shall have a surface roughness of Ra
1.6 or less (Rz 3.2 or less).
Failure to follow this precaution may shorten the
service life of the reducer due to grease leakage.
5. When installing the O-ring that is supplied as an accessory, the oil that has
been applied may seep out, but this does not affect the quality.
DGF type Precautions for Use
Lubricant / Seal material
Grease is sealed in the reducer when it is shipped from our factory.
However, the oil seal is not attached to the input shaft.
If necessary, attach a seal to the device to prevent grease leakage.
[Important] Fill 70 to 80 % of the spatial volume of the device with our
dedicated grease (sold separately).*Grease density : 0.9 g/㎤
Precautions for the Grease
1. Using grease in over or under designated amount or different grease may result in
performance deterioration or early damage.
2. Take care to prevent dust, moisture from entering the grease.
The values shown above are representative values. Actual values may be slightly
different depending on manufacturing lots.
Operating temperature range: -30°C to 130°C
Handling precautions
- It corresponds to non-dangerous goods in the Fire Service Act.
- Avoid direct sunlight, and store the reducer in a well-ventilated place.
- Please check the “Safety Data Sheet (SDS)” before starting to use.
*When the spatial volume of the device side is 24 cm3
Sealed amount of grease = 24 cm3 × 0.9 g/cm3 × 75% = 16.2 g
■ When installing this product, use the attached O-rings (two types).
Precautions for the O-rings
1. Before using O-rings, make sure that they are free from damage.
2. When mounting the O-rings, take care not to allow the adherence or entry of
foreign substances and dust.
3. Please attach O-rings so that they do not get twisted.
4. Please attach O-rings so that they do not get pinched.
5. The O-ring contact surface of your device shall have a surface roughness of Ra
1.6 or less (Rz 3.2 or less).
