Worm Power Drive EW/EWM, EWJ/EWJM series
- Achieves increased capacity, efficiency, and cost effectiveness without compromising accuracy and small footprint.
- Foot mounting style is standard. Both solid and hollow output shaft types are available.
- The solid shaft type is excellent for connections with couplings, chains, and belts.
- The wide selection allows for more compact design of your equipment.
Features
-
・Well-balanced in capacity, efficiency and cost
Years of experience in designing tooth surface with unsurpassed torque transfer performance went into making a well-balanced cylindrical worm gear in terms of performance, efficiency, and cost.
・Choice between solid and hollow output shafts in foot mount and base mount.
・Selection ranging from small size to medium size (center distance: 25mm-200mm)
・EWJ series uses a dedicated case that can be installed in any direction.
Product Specifications
EW Series
Worm Gear Type | Cylindrical Worm | |
---|---|---|
Size | Small-Size to Mid-Size | |
Center Distance 80mm~200mm | ||
Reduction ratio | Single Reduction Gear Reducers | 1/10~1/60 |
Double reduction ratio | 1/100~1/3600 | |
Torque | 300~5300 N・m |
EWJ Series
Worm Gear Type | Cylindrical Worm | |
---|---|---|
Size | Small size | |
Center Distance 25mm~70mm | ||
Reduction ratio | Single Reduction Gear Reducers | 1/10~1/60 |
Double reduction ratio | 1/100~1/3600 | |
Torque | 12~300 N・m |
Construction
EW80~200
The above diagram is a typical example.
EWJ25~42
The above diagram is a typical example. The structures for EWJ50-70 are slightly different.
Catalogs ・Instruction Manuals
Select a motor handling option.
Select a motor handling option.
Model No. examples
・Single Reduction Gear Reducers | |||||||
Without a motor | EWJ | 25 | E | 10 | L | ||
With motor | EWJM | 42 | E | 30 | LR | 040 | S |
EWJMR | 42 | E | 10 | LR | 075 | ||
・Double reduction ratio |
|||||||
Without a motor | EWJ | 50 | T | 100 | R-L | ||
With motor | EWJM | 70 | B | 500 | R-L | 020 | S |
EWMR | 80 | B | 100 | R-L | 075 | ||
| Series |
| Size |
| Mounting Position |
| Reduction ratio |
| Shaft Arrangement |
| Motor Capacity |
| Motor Specifications |
|
25 ~ 200 |
Diagram Single Reduction Gear Reducers Double reduction ratio |
10:1/10 ~ 3600:1/3600 |
Diagram Single Reduction Gear Reducers Double reduction ratio |
010:0.1kW ~ 550:5.5kW |
See Table below. |
Series | Explanation of symbols |
---|---|
EWJM, EWM | S:Ship with standard motor installed SB:Ship with standard motor with brake installed SX:Ship with customer-supplied motor installed Y:Customer to install motor |
EWJMR, EWMR | No symbol :Ship with standard motor installed B:Ship with standard motor with brake installed |
■Tsubaki model No. navigation
Series
EWJ・EW:This model is primarily for foot mounting. This specifies the EWJ Series for sizes 70 or smaller, and the EW Series for sizes 80 or above.
SWJ・SW:This model is primarily for flange mounting or shaft mounting. This specifies the SWJ Series for sizes 70 or smaller, and the SW Series for sizes 80 or above.
EWJM(R)・EWM(R):This is the EWJ Series or EW Series with a motor installed.
SWJM(R)・SWM(R):This is the SWJ Series or SW Series with a motor installed.
Size
This indicates the size of the gear reducer.
Mounting Position
E or T:On this type, the input shaft is located above the output shaft.
E type applies to EWJ/EWJM/SWJ/SWJM Series with a reduction ratio of 1/60 or below; otherwise, the T type applies.
B:On this type, the input shaft is located below the output shaft.
V:On this type, the output shaft is vertical.
Refer to the catalog for details.
Reduction ratio
This indicates the reduction ratio.
This specifies single stage reduction for reduction ratios of 1/60 or less, two stage reduction for 1/100 or more.
Shaft Arrangement
This shows the relation of the input and output shafts to the mounting surface.
Refer to the catalog for details.
Motor Capacity
This indicates the motor capacity if the unit comes with a motor.
Motor Specifications
Sor No symbol :Tsubaki will mount the standard motor prior to shipment.
SB,B:Tsubaki will mount the standard motor with brake prior to shipment.
SX:Tsubaki will mount the customer-supplied motor prior to shipment.
Y:This specifies the unit will have a motor flange for the customer to mount their own motor.
Option symbol
Z:This specifies a motor that can be used with a variable frequency drive.
W:This specifies a motor suitable for outdoor installation.
V: This specifies a power supply voltage and cycle rating of 400/400/440 VAC, and 50/60/60 Hz.
V1:This specifies a power supply voltage and cycle rating of 380VAC, and 50Hz.
V2:This specifies a power supply voltage and cycle rating of 380VAC, and 60Hz.
V3:This specifies a power supply voltage and cycle rating of 415VAC, and 50Hz.
V4:This specifies a power supply voltage and cycle rating of 460VAC, and 60Hz.
N:This specifies compliance with the CE marking directives.
N2:This specifies compliance with UL standards.
*N3:This specifies CCC compliance.
H:This specifies an aluminum terminal box.
Q:The brake can be manually disengaged.
M:The motor can be turned manually from the fan side.
Supplement code
・Terminal box position
The terminal box will be relocated to a position counterclockwise looking from the motor.
P1:90゚Offset P2:180゚Offset P3:270゚Offset
・Direction of terminal box wiring outlet.
The wiring outlet on the terminal box will be relocated to a position clockwise looking at the terminal box.
・For motor capacities of 0.75 kW or less.
D1:90゚Offset D2:180゚Offset D3:270゚Offset
・For motor capacities of 1.5 kW or more.
E1:90゚Offset E2:180゚Offset E3:270゚Offset
List of Models
※Click the model No. for detailed information. Expand all Collapse all
Without a motor Size 25 (Model No. EWJ25~)
Reduction ratio | Output shaft | EType |
---|---|---|
1/10 | Solid | EWJ25E10L EWJ25E10R EWJ25E10LR |
1/15 | Solid | EWJ25E15L EWJ25E15R EWJ25E15LR |
1/20 | Solid | EWJ25E20L EWJ25E20R EWJ25E20LR |
1/25 | Solid | EWJ25E25L EWJ25E25R EWJ25E25LR |
1/30 | Solid | EWJ25E30L EWJ25E30R EWJ25E30LR |
1/40 | Solid | EWJ25E40L EWJ25E40R EWJ25E40LR |
1/50 | Solid | EWJ25E50L EWJ25E50R EWJ25E50LR |
1/60 | Solid | EWJ25E60L EWJ25E60R EWJ25E60LR |
Without a motor Size 35 (Model No. EWJ35~)
Reduction ratio | Output shaft | EType |
---|---|---|
1/10 | Solid | EWJ35E10L EWJ35E10R EWJ35E10LR |
1/15 | Solid | EWJ35E15L EWJ35E15R EWJ35E15LR |
1/20 | Solid | EWJ35E20L EWJ35E20R EWJ35E20LR |
1/25 | Solid | EWJ35E25L EWJ35E25R EWJ35E25LR |
1/30 | Solid | EWJ35E30L EWJ35E30R EWJ35E30LR |
1/40 | Solid | EWJ35E40L EWJ35E40R EWJ35E40LR |
1/50 | Solid | EWJ35E50L EWJ35E50R EWJ35E50LR |
1/60 | Solid | EWJ35E60L EWJ35E60R EWJ35E60LR |
Without a motor Size 42 (Model No. EWJ42~)
Reduction ratio | Output shaft | EType |
---|---|---|
1/10 | Solid | EWJ42E10L EWJ42E10R EWJ42E10LR |
1/15 | Solid | EWJ42E15L EWJ42E15R EWJ42E15LR |
1/20 | Solid | EWJ42E20L EWJ42E20R EWJ42E20LR |
1/25 | Solid | EWJ42E25L EWJ42E25R EWJ42E25LR |
1/30 | Solid | EWJ42E30L EWJ42E30R EWJ42E30LR |
1/40 | Solid | EWJ42E40L EWJ42E40R EWJ42E40LR |
1/50 | Solid | EWJ42E50L EWJ42E50R EWJ42E50LR |
1/60 | Solid | EWJ42E60L EWJ42E60R EWJ42E60LR |
Without a motor Size 50 (Model No. EWJ50~)
Without a motor Size 63 (Model No. EWJ63~)
Without a motor Size 70 (Model No. EWJ70~)
Without a motor Size 80 (Model No. EW80~)
Without a motor Size 100 (Model No. EW100~)
Without a motor Size 125 (Model No. EW125~)
Without a motor Size 150 (Model No. EW150~)
Without a motor Size 175 (Model No. EW175~)
Without a motor Size 200 (Model No. EW200~)