WPX Industrial Worm Gearbox
Need product advice? Ask an expert
Got questions?
Feel free to get in touch
WPX Downward Output Worm Gearbox Selection Guide
The WPX configuration directs the output connection below the reducer centerline while retaining a horizontal input arrangement. It is suited to machines where power must be transferred to a driven shaft or connection positioned below the gearbox.
Where WPX Fits Best
- Machines with the driven shaft or coupling located below the reducer.
- Conveyor, drum, or transfer layouts connected at a lower level.
- Installations where the gearbox is supported above the driven equipment.
- Replacement projects that must preserve an existing downward-output arrangement.
WPX Installation Checks
- Confirm sufficient clearance below the gearbox for the shaft connection and guard.
- Check the support structure and mounting surface before finalizing the layout.
- Verify that the output connection does not interfere with the base, frame, or nearby equipment.
- Match the coupling, sprocket, pulley, or other connecting part to the driven shaft.
- Keep inspection, lubrication, and routine maintenance points accessible.
When WPX May Not Be the Right Choice
If the driven connection is above the reducer, review the WPO upward-output model. WPX may also be unsuitable where lower clearance is limited or the supporting structure and mounting interface have not been confirmed.
WPX Selection FAQ
What distinguishes the WPX layout?
WPX uses a downward-output arrangement with a horizontal input.
How do I choose between WPX and WPO?
Use the driven-shaft position as the first check: WPX serves a connection below the reducer, while WPO serves a connection above it.
What must be measured before ordering WPX?
Check the selected size, output center position, mounting-hole pattern, shaft dimensions, lower clearance, and the supporting structure.
What application details help confirm the model?
Provide the machine type, output direction, input and output speed, load condition, operating schedule, available space, and any replacement-unit drawing or nameplate information.
See the complete WP worm gearbox range or contact ZPGear for selection support. Use the approved manufacturer drawing as the final source for dimensions and installation interfaces before purchase or fabrication.
WPX Model Technical Information
The WPX series worm gear reducer is designed for a downward output shaft orientation. It’s ideal for applications that need right-angle power transmission from a horizontal input into a vertical, downward output, such as in material handling and hoisting equipment.
Dimension Parameter List
Mobile: tap cards to expand. Desktop: scroll the full table.
| Size | Ratio | A | AB | BB | BC | CC | M | N | E | E₁ | G | Z | Input shaft | Output shaft | Weight (kg) | (L) | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| HS | U | T×V | LS | S | W×Y | |||||||||||||||
| 40 | 1/10–1/60 | 143 | 87 | 74 | 45 | 40 | 94 | 184 | 70 | 74 | 86 | 10 | 25 | 12 | 4×2.5 | 28 | 14 | 5×3 | 5 | 0.36 |
| 50 | 1/10–1/60 | 175 | 107 | 97 | 50 | 50 | 116 | 220 | 90 | 93 | 102 | 15 | 30 | 12 | 4×2.5 | 40 | 17 | 5×3 | 6 | 0.50 |
| 60 | 1/10–1/60 | 198 | 122 | 112 | 55 | 60 | 126 | 260 | 100 | 105 | 120 | 20 | 40 | 15 | 5×3 | 50 | 22 | 6×3.5 | 10 | 0.60 |
| 70 | 1/10–1/60 | 231 | 140 | 131 | 65 | 70 | 156 | 295 | 120 | 120 | 135 | 20 | 40 | 18 | 6×3.5 | 60 | 28 | 8×4 | 15 | 1.10 |
| 80 | 1/10–1/60 | 261 | 160 | 142 | 70 | 80 | 175 | 320 | 140 | 130 | 150 | 20 | 50 | 22 | 6×3.5 | 65 | 32 | 10×5 | 20 | 1.50 |
| 100 | 1/10–1/60 | 322 | 190 | 169 | 90 | 100 | 224 | 375 | 190 | 155 | 180 | 26 | 50 | 25 | 8×4 | 75 | 38 | 10×5 | 35 | 4.00 |
| 120 | 1/10–1/60 | 381 | 229 | 190 | 100 | 120 | 266 | 450 | 220 | 185 | 215 | 30 | 65 | 30 | 8×4 | 85 | 45 | 14×5.5 | 50 | 5.20 |
| 135 | 1/10–1/60 | 433 | 260 | 210 | 110 | 135 | 306 | 495 | 260 | 210 | 235 | 30 | 75 | 35 | 10×5 | 95 | 55 | 16×6 | 75 | 7.50 |
| 147 | 1/10–1/60 | 439 | 264 | 212 | 113 | 147 | 310 | 556 | 250 | 254 | 254 | 32 | 80 | 35 | 10×5 | 95 | 55 | 16×6 | 90 | 8.50 |
| 155 | 1/10–1/60 | 504 | 302 | 252 | 140 | 155 | 350 | 590 | 290 | 245 | 295 | 35 | 85 | 40 | 12×5 | 110 | 60 | 18×7 | 115 | 9.30 |
| 175 | 1/10–1/60 | 545 | 325 | 262 | 150 | 175 | 394 | 640 | 320 | 267 | 323 | 40 | 85 | 45 | 14×5.5 | 110 | 65 | 18×7 | 140 | 10.5 |
| 200 | 1/10–1/60 | 587 | 350 | 305 | 175 | 200 | 440 | 710 | 370 | 290 | 360 | 40 | 95 | 50 | 14×5.5 | 125 | 70 | 20×7.5 | 200 | 12.7 |
| 250 | — | 705 | 420 | 360 | 200 | 250 | 510 | 860 | 440 | 350 | 440 | 45 | 110 | 60 | 18×7 | 155 | 90 | 25×9 | 340 | 23.0 |
WPO and WPX Installation Orientation Guide
Current model focus: WPX is the orientation to review when the driven connection is below the reducer. Confirm the lower clearance, support arrangement and shaft center height against the approved drawing.
WPO: upward output path
Review WPO when the driven shaft and available machine space are above the gearbox.
WPX: downward output path
Review WPX when the driven shaft and support arrangement are below the gearbox.
Need the opposite orientation? Compare the WPO worm gearbox.
Project data to verify before selection
- Operating requirement: input speed, required output speed or ratio, duty cycle and driven load.
- Mechanical interface: mounting position, shaft direction, center height, shaft dimensions, keyway and available clearance.
- Site conditions: ambient environment, access for guarding and maintenance, and the installation arrangement.
Final verification: use the approved ZPGear or manufacturer drawing and the project specification as the source of truth. Ask ZPGear to confirm the selection when load or installation data is uncertain.
Engineering Data and Selection Verification
Use the information on this WPX Industrial Worm Gearbox page for preliminary comparison. Final dimensions, materials, interfaces and operating limits must be confirmed against the current manufacturer catalog or an approved project drawing before purchase, fabrication or installation.
Table scope: each parameter row applies only to the model or size identified in that row. Do not interpolate, combine or transfer values between sizes without manufacturer confirmation.
Required Project Inputs
- Input speed and motor information
- Required output speed or target ratio
- Driven load type, start-stop pattern and operating schedule
- Mounting position, shaft direction and available installation space
- Site environment and maintenance-access requirements
Interfaces to Confirm
- Model size and mounting-hole pattern
- Input and output shaft or bore dimensions
- Flange, keyway, coupling and guarding arrangement
- Shaft center position and surrounding clearance
- Lubrication and inspection access
Reproducible Speed and Ratio Check
Required ratio: input speed ÷ target output speed. Expected output speed: input speed ÷ selected ratio. Record the source of each input value and use consistent units.
This arithmetic check does not confirm torque, power, service factor, temperature, efficiency or life. Ask ZPGear to verify those items from the current manufacturer data for the selected model and operating condition.
Source record: keep the manufacturer name, catalog or drawing number, revision date, selected model size, project inputs and final approval sheet with the order documentation. Send the project information to ZPGear for confirmation.