ALEW053K-ALEW120K
Electric-ready Part-turn Gearboxes
ALEW053K-ALEW120K is organized as one product page group from source sheet ALEW-36, with actual model variants preserved separately.
ALEW053K-ALEW120K Valve Gearbox Series
ALEW053K-ALEW120K is a high torque worm gearbox series for manual valve operation. Designed for large valves, it provides quarter turn gear operator function with ISO 5211 flange interface. Suitable for heavy duty valve operation and large diameter butterfly valve applications.
The ALEW053K-ALEW120K series provides high torque worm gearboxes for industrial valves. It transmits torque via worm gear transmission with self-locking function. The gearbox supports quarter-turn operation for large diameter butterfly, ball, plug valves, and dampers. It includes ISO 5211 valve gearbox interface for direct actuator mounting.
Performance Parameters
Units: torque N·m · thrust kN · linear dimensions mm
| Model | Out. Tq. | In. Tq. | Ratio | Eff. |
|---|---|---|---|---|
| ALEW053K | 53000 | 2030 | 76:1 | 26.6 |
| ALEW065K | 65000 | 2500 | 80:1 | 28 |
| ALEW075K | 75000 | 3000 | 72:1 | 25.2 |
| ALEW090K | 90000 | 3380 | 76:1 | 26.6 |
| ALEW120K | 120000 | 5000 | 70:1 | 24.5 |
Connection Dimensions
Unit: mm
| Model | Flange No. | D | D0 | PCD Thread | Boss D | Pin Qty | f | Max. Stem Dia. d | H2 | Convex (D1×f) |
|---|---|---|---|---|---|---|---|---|---|---|
| ALEW053K | F40/F48 | 560/560 | 406/483 | 8×M36-54/12×M36-54 | 300/370 | 4-Φ40/4-Φ40 | 8/8 | 180 | 225 | 22 |
| ALEW065K | F40/F48 | 560/560 | 406/483 | 8×M36-54/12×M36-54 | 300/370 | 4-Φ40/4-Φ40 | 8/8 | 180 | 235 | |
| ALEW075K | F40/F48 | 560/560 | 406/483 | 8×M36-54/12×M36-54 | 300/370 | 4-Φ40/4-Φ40 | 8/8 | 185 | 248 | |
| ALEW090K | F40/F48 | 560/560 | 406/483 | 8×M36-54/12×M36-54 | 300/370 | 4-Φ40/4-Φ40 | 8/8 | 190 | 258 | |
| ALEW120K | F48/F60 | 686/686 | 483/603 | 12×M36-54/20×M36-54 | 370/470 | 4-Φ40/4-Φ40 | 8/8 | 205 | 284 |
Overall Dimensions
Unit: mm · Weight: kg
| Model | A | B | C | L1 | H | H1 |
|---|---|---|---|---|---|---|
| ALEW053K | 560 | 720.0 | 275 | 644 | 295 | 130 |
| ALEW065K | 575 | 739.5 | 287 | 661.5 | 295 | 130 |
| ALEW075K | 590 | 793.0 | 307 | 711 | 330 | 140 |
| ALEW090K | 630 | 826.0 | 321 | 741 | 330 | 140 |
| ALEW120K | 686 | 873.0 | 340 | 809 | 340 | 150 |
Dimensional Drawing
Product Structure View
Engineering Material List
Housing: ASTM A536 65-45-12, Worm Shaft: AISI 5140, Worm Wheel: ASTM A536 80-60-03
| No. | Part Name | Material | UK Standard | USA Standard |
|---|---|---|---|---|
| 1 | Worm Gearcase | Ductile Iron | BS 2789 450/10 | ASTM A536 65-45-12 |
| 2 | Alloy Bushing | SF-1 | SF-1 | SF-1 |
| 3 | Thrust Bearing | Steel | BS 535A99 | AISI/SAE 52100 |
| 4 | Actuator mounting bracket | Ductile Iron | BS 2789 450/10 | ASTM A536 65-45-12 |
| 5 | Turbine | Ductile Iron | BS 2789 600/3 | ASTM A536 80-55-06 |
| 6 | Cover | Ductile Iron | BS 2789 450/10 | ASTM A536 65-45-12 |
| 7 | Position Indicator Gasket | Nitrile rubber | Nitrile rubber | Nitrile rubber |
| 8 | Position Indicator | Steel | BS 080A25 | AISI/SAE 1025 |
| 9 | End Cap | Ductile Iron | BS 2789 450/10 | ASTM A536 65-45-12 |
| 10 | Worm Shaft | Steel | BS 080A47 | AISI/SAE 1045 |
| 11 | Worm | Steel | BS 970 530M40 | AISI/SAE 5140 |
Compatibility & Actuator Interface
Structured gearbox data for engineering selection and project documentation.
TFC provides engineered gearbox solutions for demanding valve applications, with technical support for model selection, torque matching, project documentation and OEM requirements.
Frequently Asked Questions
What is the torque range of the ALEW053K-ALEW120K worm gearbox?
The torque range is 53000 to 120000 Nm as per model specifications.
Which valve types are compatible with this worm gearbox?
It supports quarter-turn valves including butterfly, ball, plug valves, and dampers.
Does the gearbox have an ISO 5211 valve gearbox interface?
The gearbox includes an ISO 5211 flange for direct actuator mounting.
Is the worm gearbox self-locking for valve position retention?
Yes, it features a self-locking worm gear transmission for valve position holding.
Is the gearbox suitable for manual and electric valve operation?
Manual operation is standard; electric-ready options are available for automation.
Need engineering assistance?
Send us your valve type, required torque, stem dimensions, flange standard and working conditions. Our engineering team will recommend a suitable gearbox model.