Technical Data Reducers Worm Gear Reducers Handling
This section contains general information regarding the handling of the EWJ/EWJM(R)/EW/EWM(R), and SWJ/SWJM(R)/SW/SWM(R), and TD Series.
For more information, see the instruction manual provided with the product.
7. Daily inspection / Maintenance
7-1. Daily inspection
Be sure to inspect the following items daily. Failure to do so may result in problems.
| Inspection items | Inspection details |
|---|---|
| Noise | Is the noise louder than usual? Are there any unusual noises? |
| Vibration | Is there any unusual vibration? Any rapid changes in vibration? |
| Temperature | Is the surface temperature of the reducer higher than usual? Any rapid temperature rises? |
| Oil level | Is the oil level correct when the machine is stopped? |
| Installation bolts | Are any of the bolts loose? |
| Chain/belt | Are the chains/belts loose? |
| Lubricant condition | Has the lubricant blackened due to abrasion powder? |
| Oil leakage | Are there any leakages from the connection points on the reducer, oil seals, caps? |
| Pressure vent | Are the holes for air not clogged? |
If you discover any abnormalities during daily inspection, take the appropriate measures by referring "Troubleshooting." If the problem persists, contact your dealer.
7-2. Lubrication
All Troi Drives and Worm Power Drives are filled and sealed with premium quality lubrication oil and are ready to be used.
(1)Recommended lubricating oil
- ・Lubrication oil is vital to reducer capacity, life, and efficiency Use only lubrication oil recommended by Tsubaki. (Do not mix the oil with other brands. )
EWJ/EWJM(R)/EW/EWM(R) Series
SWJ/SWJM(R)/SW/SWM(R) SeriesAll models Daphne Alpha Oil TE260 (IDEMITSU) TD Series Single reduction type Daphne Alpha Oil TE260 (IDEMITSU) High reduction type Daphne Alpha Oil TE380 (IDEMITSU) Note) For TERUS series products, refer to the instruction manual attached to the product.
- ・The above oils are recommended for normal operation.
Single reduction reducers running at an input speed of 500 r/min or slower can benefit from longer life by switching to Daphne Alpha Oil TE380. - ・Daphne Alpha Oil TE150 is recommended for reducers that have trouble starting in low temperature environments with an input speed of 1500 r/min or faster.
Note) Contact Tsubaki representative if the ambient temperature is below -10°C or above 50°C.
(2)Oil replacement
- ・Lubrication oil is vital to reducer capacity, life, and efficiency Use only lubrication oil recommended by Tsubaki.
- ・It is not necessary to replace the oil for the EWJ/EWJM(R) series and SWJ/SWJM(R) series. However, if the lubrication oil deteriorates significantly due to usage conditions, it can be replaced for reassurance.
- ・Follow these guidelines to determine when to replace the lubrication oil for models EW/EWM80 to 200 and SW/SWM80 to 200, and TD125 to 315:
- ・The first replacement should be carried after 1000 hours of operation or after three months, whichever comes earlier.
- ・Depending on operating conditions, the second and subsequent replacements should be carried out every 5000 hours of operation or each year, whichever comes earlier.
- ・It is easier to drain oil while it is warm after operation. However, hot oil may cause burns and is extremely dangerous. Allow the temperature of the housing to cool to 40 to 50°C before draining the oil.
- ・Tsubaki recommends flushing the inside of the housing with the new oil.
Note) Do not mix the oil with other brands.
(3)Approximate oil volume
- ・Even with the same size reducer, oil volume varies depending on the reduction ratio. Use the volumes in the following tables as a guideline, and always check the oil volume with the oil gauge.
(The oil volume is correct when it can be seen in the oil gauge when the reducer is not under operation. )Note) Do not mix the oil with other brands.
Note) TD oil differs between single and double reduction.
Note) No oil gauge is provided on the EWJ/EWJM(R) series and SWJ/SWJM(R) series.
・EWJ/EWJM(R) Series
[Single Reduction Gear Reducers Reduction ratio ：1/10 ～ 1/60]
| Type | Size | ||||||
|---|---|---|---|---|---|---|---|
| 25 | 35 | 42 | 50 | 63 | 70 | ||
| Mounting direction | E | 0.08 | 0.17 | 0.29 | 0.55 | 0.95 | 1.0 |
| V | |||||||
[Double reduction ratio Reduction ratio ：1/100 ～ 1/3600]
| Type | Size | ||||
|---|---|---|---|---|---|
| 50 | 63 | 70 | |||
| Mounting direction | B&T V |
High speed side | 0.10 | 0.16 | 0.16 |
| Low speed side | 0.55 | 0.95 | 1.0 | ||
・EW/EWM(R) Series
[Single Reduction Gear Reducers Reduction ratio ：1/10 ～ 1/60]
| Type | Size | ||||||
|---|---|---|---|---|---|---|---|
| 80 | 100 | 125 | 150 | 175 | 200 | ||
| Mounting direction | B | 1.2 | 1.7 | 3.1 | 5.1 | 8.4 | 13 |
| T | 2.3 | 4.1 | 6.4 | 11 | 16 | 25 | |
| V | 1.7 | 2.8 | 4.8 | 8.2 | 12 | 19 | |
[Double reduction ratio Reduction ratio ：1/100 ～ 1/3600]
| Type | Size | ||||||
|---|---|---|---|---|---|---|---|
| 80 | 100 | 125 | 150 | 175 | 200 | ||
| Mounting direction | B | 1.5 | 2.4 | 3.7 | 7.0 | 11 | 17 |
| V | 2.2 | 2.9 | 5.7 | 10 | 13 | 22 | |
・SWJ/SWJM(R) Series
[Single Reduction Gear Reducers Reduction ratio ：1/10 ～ 1/60]
| Type | Size | ||||||
|---|---|---|---|---|---|---|---|
| 25 | 35 | 42 | 50 | 63 | 70 | ||
| Mounting direction | E | 0.08 | 0.10 | 0.16 | 0.55 | 0.95 | 1.3 |
・SW/SWM(R) Series
[Single Reduction Gear Reducers Reduction ratio ：1/10 ～ 1/60]
| Type | Size | ||||||
|---|---|---|---|---|---|---|---|
| 80 | 100 | 125 | 150 | 175 | 200 | ||
| Mounting direction | B | 1.0 | 1.4 | 2.2 | 4.2 | 6.5 | 8.5 |
| T | 1.8 | 2.8 | 5.1 | 8.0 | 13.0 | 15.0 | |
| V | 1.4 | 2.1 | 3.7 | 5.9 | 9.6 | 11.7 | |
[Double reduction ratio Reduction ratio ：1/100 ～ 1/3600]
| Type | Size | ||||||
|---|---|---|---|---|---|---|---|
| 80 | 100 | 125 | 150 | 175 | 200 | ||
| Mounting direction | B | 1.5 | 1.9 | 3.1 | 6.3 | 9.1 | 12.5 |
| V | 1.9 | 2.6 | 4.6 | 8.0 | 12.2 | 15.7 | |
・TD Series
[Single Reduction Gear Reducers Reduction ratio ：1/10 ～ 1/60]
(1)Solid Output Shaft (S)
| Type | Size | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 125 | 150 | 175 | 200 | 225 | 250 | 280 | 315 | ||
| Mounting direction | B | 3.1 | 5.1 | 8.4 | 13.0 | 9.1 | 13.0 | 18.0 | 29.0 |
| T | 6.5 | 11.0 | 16.0 | 25.0 | 24.0 | 35.0 | 49.0 | 75.0 | |
| V | 4.8 | 8.2 | 12.0 | 19.0 | 16.0 | 22.0 | 31.0 | 46.0 | |
(2)Hollow Output Shaft (H)
| Type | Size | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 125 | 150 | 175 | 200 | 225 | 250 | 280 | 315 | ||
| Mounting direction | B | 2.2 | 4.2 | 6.5 | 8.5 | 9.0 | 13.0 | 18.0 | 29.0 |
| T | 5.1 | 8.0 | 13.0 | 15.0 | 20.0 | 27.0 | 38.0 | 58.0 | |
| V | 3.7 | 5.9 | 9.6 | 12.0 | 15.0 | 20.0 | 28.0 | 44.0 | |
[Double reduction ratio Reduction ratio ：1/100 ～ 1/3600]
(1)Solid Output Shaft (S)
| Type | Size | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 125 | 150 | 175 | 200 | 225 | 250 | 280 | 315 | ||
| Mounting direction | B | 4.1 | 7 | 11 | 17 | 13 | 19 | 28 | 39 |
| V | 5.8 | 10 | 13 | 22 | 20 | 28 | 41 | 56 | |
(2)Hollow Output Shaft (H)
| Type | Size | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 125 | 150 | 175 | 200 | 225 | 250 | 280 | 315 | ||
| Mounting direction | B | 3.2 | 6 | 9 | 13 | 13 | 19 | 28 | 39 |
| V | 4.7 | 8 | 12 | 16 | 19 | 26 | 38 | 54 | |
7-3. Inspection and replacement of the oil seal
- ・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. Refer to the instruction manual for procedures on replacing oil seals and filters.
- ・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.
7-4. Refilling grease (Semi-standard specifications )
- ・If the mounting direction of the reducer causes the input shaft bearing to be face up or face down (where the bearing is located above the oil level), the bearing must be greased periodically. (Applicable to sizes 80 and above, excludes sizes 70 and below. )
- ・Models that must be greased are provided with a tapped hole for mounting a grease nipple. (If required, “grease nipple” is indicated on the reference drawing. Refer to the reference drawings. )
- ・A stopper plug (M6 fine threaded hex bolt) is mounted before shipment to prevent oil leakage during transport. Replace it with a grease nipple supplied with the reducer during installation or before operation. All bearings are greased and assembled.
Note that the grease used to lubricate the bearings may be soaked in oil depending on the transport conditions. In this case, it is recommended to reapply grease from the grease nipple. - ・Follow the procedures below to refill grease every 1000 hours of operation.
Steps Replacement procedures 1 Add grease when the machine is stopped. 2 Use a grease gun or similar tool to supply grease from the grease nipple located on the top of the housing.
Note) Do not over grease. Doing so may cause the reducer to heat up, and cause the lubrication to deteriorate prematurely.Grease nipple size ：A-M6F
7-4-1. Recommended grease (ambient temperature: -10 to 40°C)
| Maker | Brand (industrial all-purpose grease JIS grade 2 ) |
|---|---|
| Exxon Mobile | Mobilux EP2 (factory filled ) |
| Showa Shell Sekiyu | Shell Alvania EP Grease 2 |
| JXTG Energy | EPNOC Grease AP2 |
| Idemitsu Oil | Daphne Eponex No.2 |
Note) Grease may differ from above brand, depending on the specification. Always follow the grease specification shown in the official drawing and lubricate the appropriate grease.
7-4-2. Approximate greasing volume
Refer to the instruction manual.
