XMSPIntegrated Motion SystemIntegrated Drive System
Accessory · Planetary gearbox

Planetary gearboxes

Add a planetary gearbox when motor speed is too high or torque is too low. It reduces speed, raises torque, and improves resolution. Inline series is PF. Right-angle series is ZPF. Flanges cover 60, 80, 110, and 130, in stage 1 (L1) and stage 2 (L2).

Inline planetary gearboxes PF60 to PF130
Inline planetary units PF60, PF80, PF110, and PF130.
  • PF / ZPFInline / right-angle
  • 60–130Flange
  • L1 / L2Stage 1 / stage 2
  • PF10Order-code form
Standard models Worm gearbox

Function

A planetary stage converts motor speed into a slower, higher-torque output. The sun gear is in the center, the planets orbit it, and power leaves through the output flange. Efficiency is high, backlash is small, and stiffness is good, so it suits positioning with an integrated servo drive.

Inline planetary gearbox, two views
Inline planetary: clamp input, coaxial output.
  • Not enough torque. Raise rated torque with the ratio instead of moving to a larger motor.
  • Speed too high. The mechanism only needs low speed, and direct drive is unstable in that range.
  • Resolution too coarse. The same one-revolution command produces a finer output displacement.
  • Inertia mismatch. Load inertia is reflected to the motor by the square of the ratio, so acceleration is easier to control.
Planetary gearbox internal layout
Internal gear layout.
Do not add a gearbox when torque and speed are already enough. A planetary stage adds backlash, uses axial length, and inserts another transmission element.

For a larger ratio, or when the axis should be less likely to back-drive after power off, see the worm gearbox. The order-code segment is NMRV30.

How to choose

  1. Match the flange first. 400 W / 60 frame uses a 60 flange. 750 W / 80 frame uses an 80 flange. Choose 110 and 130 flanges from the motor pilot.
  2. Then the direction. Use PF when the motor and load share an axis. Use ZPF when the output must turn 90°.
  3. Then the number of stages. Ratios 3 / 4 / 5 / 7 / 10 use stage 1 (L1). Ratios of 9 and above use stage 2 (L2). Stage 1 is shorter and more efficient.
  4. Then check torque. Multiply load torque by 1.5–2 and compare it with the rated table on the model page. Check peak torque at 2 × rated.
The input is a clamp hub. The motor shaft is clamped after insertion. Shaft diameter and pilot must match that motor. Include the motor model with the order.

In the software, the ratio is applied as revolutions × ratio = actual output revolutions. See XMatrix functions × MSP hardware.

Standard models

The eight 60 / 80 flange models each have a page. 110 / 130 flanges are configured per project. Documents and 3D models are supplied against the motor pilot.

ModelFormMatched motorRatioDocuments
PF60L1Inline stage 1400W / 603–10PF60L1
PF60L2Inline stage 2400W / 609–100PF60L2
ZPF60L1Right-angle stage 1400W / 603–10ZPF60L1
ZPF60L2Right-angle stage 2400W / 609–100ZPF60L2
PF80L1Inline stage 1750W / 803–10PF80L1
PF80L2Inline stage 2750W / 809–100PF80L2
ZPF80L1Right-angle stage 1750W / 803–10ZPF80L1
ZPF80L2Right-angle stage 2750W / 809–100ZPF80L2
PF110InlineBy pilotPer projectPer project
PF130InlineBy pilotPer projectPer project

Nonstandard ratios and other flanges are issued per project. Standard worm frames are on NMRV. Dimension drawings, 3D models, and complete manuals are supplied on request.

Right-angle planetary gearbox
Right-angle planetary unit. The motor enters from the side and the output turns 90°.
Right-angle planetary internal layout
Internal layout of the right-angle housing.

Order code

The order code is the series plus the ratio, without the motor flange: PF10, ZPF20. Omit that segment when the ratio is not yet fixed.

SeriesCode segmentFull string example
PF60 / PF80 / PF110 / PF130PF + ratioXR-Online-MSP400-C-2M-PF10
ZPF60 / ZPF80ZPF + ratioXR-Online-MSP750-C-2M-ZPF20
WormNMRV + ratioXR-Online-MSP60-C-2M-NMRV30

Send the motor model, target speed, and load torque so the input hub and order code can be fixed. Frame, cable length, and ratio are selected in the configurator. This page does not assemble a full order code.

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