Technical Data Reducers Miter and Bevel Gear Boxes Handling
This section contains general information regarding the handling of your reducer.
For details, refer to the manual supplied with your reducer
3. Lubrication
3-1. Introduction
ED2 & 4 are shipped with Nippon Grease’s NIGTIGHT LMS No.000, ED6 through ED25 are shipped with Shell Lubricants Japan’s Shell Omala S2G150, and ARA Gear Boxes are shipped with grease (EMG Lubricants’ Mobilux EP0) supplied ready for use.
With models ED6 and higher, be sure to check the oil level with the oil gauge after completing the installation. If the oil level does not appear in the oil gauge, supply the same oil until it is visible.
The models cannot be used with the supplied lubricant if using them with a lateral shaft speed of below 200 rpm or in an ambient temperature between 35 and 50°C. A different lubricant is necessary. Refer to the recommended lubricant table (Table 1 below) to change to a suitable lubricant. (ED2 &4 and ARA models can be used with the supplied lubricant. )
3-2. Oil replacement
- ・ED2 & 4 use grease lubrication, which in principle does not need to be changed. However, replacing the grease about every 20000 hours can help extend product life. When changing the grease, use the grease listed in the above 3-1: approx. 150 g for ED2 and approx. 350 g for ED4.
- ・For ED6 through ED25, replace the oil with new oil 500 hours after the first use. This will clean out the initial abrasion powder and contribute to better performance and a longer life.
Subsequent oil changes should be done every 2,500 hours or six months depending on operating conditions, whichever comes first. (Long hours of operation under high temperature, or use in an environment with high temperatures, humidity, or corrosive gas may require more frequent oil changes. ) - ・Select an appropriate lubricant from Table 1 below based on the rotation speed and ambient temperature.
- ・ARA Gear Boxes use grease lubrication, which in principle does not need to be changed.
- ・For forced lubrication systems, refer to the supplied instruction manual.
Table 1 Recommended lubricating oil
| Lateral Shaft Speed r/min |
Manufacturer | Ambient Temperature | ||
|---|---|---|---|---|
| -10℃ ～ 35℃ | 35℃ ～ 50℃ | |||
| 1750 ～ 200 |
Industrial gear oil Class 2 | ISO VG150 | ISO VG 220 | |
| Shell Lubricants Japan | Shell Omala S2 G 150 | Shell Omala S2 G 220 | ||
| Idemitsu Oil | Daphne Super Gear Oil 150 | Daphne Super Gear Oil 220 | ||
| EMG Lubricants | Mobilgear 600XP-150 | Mobilgear 600XP-220 | ||
| Cosmo Oil Lubricants | Cosmo gear oil SE150 | Cosmo gear oil SE220 | ||
| ENEOS | BONNOC TS150 | BONNOC TS220 | ||
| Below 200 | Industrial gear oil Class 2 | ISO VG 220 | ISO VG 320 | |
| Shell Lubricants Japan | Shell Omala S2 G 220 | Shell Omala S2 G 320 | ||
| Idemitsu Oil | Daphne Super Gear Oil 220 | Daphne Super Gear Oil 320 | ||
| EMG Lubricants | Mobilgear 600XP-220 | Mobilgear 600XP-320 | ||
| Cosmo Oil Lubricants | Cosmo gear oil SE220 | Cosmo gear oil SE320 | ||
| ENEOS | BONNOC TS220 | BONNOC TS320 | ||
Table 2 Rough Oil Volume
| ED | ||||||||
|---|---|---|---|---|---|---|---|---|
| 6 | 7 | 8 | 10 | 12 | 16 | 20 | 25 | |
| Lateral 1-shaft type | 0.95 | 1.5 | 1.9 | 3.5 | 7 | 10 | 11 | 18 |
| Lateral 2-shaft type | 1 | 1.6 | 2.1 | 3.7 | 7.4 | - | - | - |
3-3. Refilling grease (For ED6 and higher models with a vertical upward shaft arrangement )
- ・If the bearing is positioned higher than the oil level, oil spray on its own cannot sufficiently lubricate the bearing. Such bearings are filled with the following grease upon shipment.
EMG Lubricants MOBILUX EP2 - ・This bearing needs periodic supply of grease (approx. every 1,000 hours). Exchange the plug at the specified position with the supplied grease nipple and add grease.
Note) All shaft arrangements are shipped with a grease nipple.
Table 3 Recommended grease
| Manufacturer | Brand |
|---|---|
| Shell Lubricants Japan | Albania EP2 |
| Idemitsu Oil | DAPHNE EPONEX SR2 |
| EMG Lubricants | MOBILUX EP2 |
| Cosmo Oil Lubricants | Cosmo Dynamax No.2 |
| ENEOS | EPNOC Grease AP2 |
Table 4 Recommended grease amount
| ED | ||||||||
|---|---|---|---|---|---|---|---|---|
| 6 | 7 | 8 | 10 | 12 | 16 | 20 | 25 | |
| Lateral Shaft | 22 | 35 | 70 | 100 | 170 | 270 | 370 | 640 |
| Output bearing support I | 3 | 7 | 12 | 17 | 20 | 55 | 90 | 150 |
| Output bearing support II | 6 | 9 | 12 | 17 | 20 | 70 | 85 | 135 |
3-4. Oil seal inspection and replacement
- ・Oil seals wear and have expected lifetimes which may eventually lead to oil leakage. Lifetimes may be shorter when used at high temperatures, high rotating speeds, outdoors, or otherwise harsh conditions. Inspect the oil seal at regular intervals, and replace immediately if oil leaks exist. Always replace oil seals with the same model number and material. (Do not use oil seals made of different materials as this can cause oil leakage. ) Refer to the oil seal manufacturer’s catalog when replacing.
- ・In rare cases, grease discharges from the oil seal lip at the beginning of startup. This is only excess grease from filling during the assembly process; it does not indicate a function failure of the reducer.
