Planetary gearbox
Neugart WPLE economy right-angle planetary gearbox
Right-angle economy gearbox combining a bevel stage with planetary reduction in frames 40 to 120 mm, ratios 3:1 to 512:1 and maximum output torques up to 415 Nm.
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Key specifications
| Speed (max) | 18,000 rpm |
|---|---|
| Ingress protection | IP54 |
| Temperature | -25–90 °C |
| Rated torque (max) | 220 Nm |
| Peak torque (max) | 415 Nm |
| Frame sizes | 40, 60, 80, 120 |
| Ratio | 3–512:1 |
| Backlash (max) | 28 arcmin |
| Efficiency | 88-95 % |
| Backlash | <11 to <28 arcmin standard |
Summarised in our own words from Neugart GmbH (Neugart Holding GmbH, family-owned)'s published data; series maxima, individual models vary. Last checked 2026-10-30. Source 1
Notes on this data
Right-angle planetary; recorded under type planetary.
Specify Motion is not affiliated with Neugart GmbH (Neugart Holding GmbH, family-owned). Neugart and WPLE economy right-angle planetary gearbox are used only to identify the product. Comparisons use published figures; always confirm against the current datasheet.
Neugart WPLE economy right-angle planetary gearbox replacement and alternative options
Use these supply-network options as a starting point for an engineering check. We can also help source the original Neugart part. Published series figures do not establish an exact-model or drop-in replacement: confirm ratings, fit, interfaces and approvals for your application.
Apex Dynamics economy planetary family (PE, PG, PA, PS, PN, PD, PL sub-series) for high-volume automation; standard backlash, inline or right-angle.
| Published maximum | WPLE economy right-angle planetary gearbox | P-II / P-IIR |
|---|---|---|
| Rated torque | 220 Nm | 459 Nm meets or exceeds |
| Peak torque | 415 Nm | — |
| Ratio (max) | 512:1 | 1,000:1 meets or exceeds |
| Backlash (lower is better) | 28 arcmin | — |
Apex Dynamics high-precision helical planetary with a one-piece stainless planet cage and very short length; ADS adds a keyed input shaft for belt pulley or coupling drive.
| Published maximum | WPLE economy right-angle planetary gearbox | AD / ADR / ADS |
|---|---|---|
| Rated torque | 220 Nm | — |
| Peak torque | 415 Nm | — |
| Ratio (max) | 512:1 | — |
| Backlash (lower is better) | 28 arcmin | 1 arcmin meets or exceeds |
High-precision round-flange planetary with high input speed capability and near-zero backlash, aimed at robotics and CNC.
| Published maximum | WPLE economy right-angle planetary gearbox | WAE |
|---|---|---|
| Rated torque | 220 Nm | — |
| Peak torque | 415 Nm | — |
| Ratio (max) | 512:1 | — |
| Backlash (lower is better) | 28 arcmin | 2 arcmin meets or exceeds |
Figures are the highest published for each series and are not always measured the same way. A higher figure is not automatically a better choice: mounting, duty cycle, feedback, connectors and approvals matter too. An engineer will check the fit against your application before recommending anything.
Typical applications
What a planetary gearbox is
A planetary gearbox reduces speed and multiplies torque using a central sun gear driven by the motor, several planet gears on a carrier, and an outer ring gear. Load is shared between the planets, so the gearbox is compact, coaxial and torque-dense. A single stage typically gives ratios of about 3:1 to 10:1, and stages are combined for higher ratios. Precision servo planetaries use ground helical or spur gears, preloaded output bearings and a motor adapter flange, with backlash typically a few arcminutes or less.
When engineers choose a planetary gearbox
Choose a planetary gearbox for most servo and stepper axes that need more torque, lower reflected inertia or a better inertia match. It is efficient, typically above 95% per stage, stiff and widely available in standard frames. The trade-offs are backlash, which is low but not zero, and limited single-stage ratio. For zero backlash in a compact joint, a strain-wave gear suits better. For very high shock loads, a cycloidal reducer may be more robust.
How to specify the Neugart WPLE economy right-angle planetary gearbox
Send these with your enquiry and an engineer can confirm the right WPLE economy right-angle planetary gearbox variant or an equivalent:
- Ratio and output speed (:1, rpm)
- Nominal and peak output torque (Nm)
- Emergency stop torque (Nm)
- Backlash (arcmin) and torsional stiffness (Nm/arcmin)
- Radial and axial output loads (N)
- Motor flange, shaft diameter and length (mm)
- Duty cycle, mounting orientation and lubrication
Common mistakes to avoid
- Sizing on motor torque times ratio without checking acceleration torque and service factors
- Ignoring the input speed limit at high motor speeds
- Mounting a pulley or pinion that overloads the output bearing
- Forgetting the gearbox efficiency and heat in continuous duty
Neugart WPLE economy right-angle planetary gearbox: frequently asked questions
Can you help replace Neugart WPLE economy right-angle planetary gearbox or source the original?
Send the full model code, quantity and required date. Our engineers can check original-part availability and assess suitable alternatives, including Motion Control Products options where appropriate. We confirm compatibility and any changes needed before recommending a replacement.
What is the Neugart WPLE economy right-angle planetary gearbox?
Right-angle economy gearbox combining a bevel stage with planetary reduction in frames 40 to 120 mm, ratios 3:1 to 512:1 and maximum output torques up to 415 Nm. Published series figures include speed 18,000 rpm, temperature -25 °C, temperature 90 °C, rated torque 220 Nm. It is made by Neugart GmbH (Neugart Holding GmbH, family-owned); Specify Motion can help source it or propose an equivalent.
Who makes the Neugart WPLE economy right-angle planetary gearbox?
The Neugart WPLE economy right-angle planetary gearbox is made by Neugart (Neugart GmbH (Neugart Holding GmbH, family-owned)) and is listed here for engineers comparing options. Specify Motion is not affiliated with Neugart GmbH (Neugart Holding GmbH, family-owned); brand names are used only to identify the product.
What is the speed of the Neugart WPLE economy right-angle planetary gearbox?
The published series maximum speed is 18,000 rpm. Individual models and sizes in the WPLE economy right-angle planetary gearbox range vary, so check the exact variant against your duty cycle, mounting and environment, or ask our engineers to confirm the right size for you.
Is there an alternative to the Neugart WPLE economy right-angle planetary gearbox?
We can assess suitable replacement options. On published figures, APEX Dynamics P-II / P-IIR and APEX Dynamics AD / ADR / ADS are options to assess from our supply network. An engineer confirms the fit against your application before recommending anything.
How do I choose a planetary gearbox ratio?
Start from the load speed and motor speed range, then check inertia matching and torque. A ratio that brings the reflected load inertia close to the motor inertia improves dynamics. Then confirm peak output torque during acceleration is within the gearbox rating and that input speed stays under the limit.
What backlash does a precision planetary gearbox have?
Precision servo planetary gearboxes typically have backlash from below one arcminute to several arcminutes, depending on grade and stages. Lower backlash costs more. For most positioning axes, a few arcminutes is fine; for robot joints or optics, strain-wave or zero-backlash designs are used.
Further reading: How to select a planetary gearbox · Harmonic vs planetary vs cycloidal · Gearboxes and harmonic drives
Other planetary gearbox series
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