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MZS Planetary Gearboxes

MZS planetary gearboxes cover catalog sizes 60, 90, 120 and 140 in single- and double-stage configurations. Compare a defined ratio, check the shaft interface and open the applicable dimensional drawings.

MZS series / Gearboxes

Start with the ratio and mechanical fit.

The MZS catalog drawing shows a projecting keyed output shaft and square output-side mounting face. Select the stage count and listed ratio, then check the size-specific ratings and motor interface.

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Mach will confirm your ordering part number, price and availability.

01 / Family specifications

The details that matter.

Ratio and output interface

One stage

Single-stage configurations

The catalog lists separate standard and precision backlash classes. Confirm the required class when selecting the gearbox.

Catalog ratios: 3:1 · 4:1 · 5:1 · 7:1 · 10:1
Standard backlash: ≤5 arcmin
Precision backlash: ≤3 arcmin

Two stages

Double-stage configurations

Use the two-stage performance values and overall lengths for the selected ratio.

Catalog ratios: 15:1 · 20:1 · 25:1 · 30:1 · 35:1 · 40:1 · 50:1 · 70:1 · 100:1
Standard backlash: ≤8 arcmin
Precision backlash: ≤5 arcmin

Ratios are discrete catalog configurations. A size designation is not a complete ordering part number. Have Mach confirm the ratio, backlash class and interfaces.

Compare sizes at one listed ratio.

This catalog snapshot compares the same 5:1, single-stage configuration across all four sizes. Use the matching performance row for another ratio. The size codes identify catalog sizes, not completed ordering part numbers.

Catalog nominal output torque at 5:1 · Single stage; nominal speed is a separate catalog row

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MZS catalog size comparison at 5:1 single stage
Catalog model	Nominal output torqueN·m	Nominal input speedrpm	Single-stage gearbox weightkg
MZS60View model	60	5,000	1.35
MZS90View model	160	4,000	4.25
MZS120View model	330	4,000	9.15
MZS140View model	650	3,000	14.6

The source does not state the duty or test conditions for these nominal torque values, or explicitly tie them to the nominal input-speed row. Treat this as a catalog comparison and have Mach confirm the complete operating point. Maximum input speed and maximum output torque are separate limits.

All listed ratios and performance data MZS profile and all-size dimension table

Model comparison

Full specifications.

Open a model for its details, or select up to three to compare. Review the complete ratio, stage and operating data below.

Nominal torque, maximum loads and input-speed limits describe different conditions. Confirm the complete operating point and the required backlash class.

Confirm the exact model and application-critical specifications with Mach.

Scroll across to see all models →

MZS performance specifications. Units appear with each row label.
SpecificationUnits shown below	Model60Compare	Model90Compare	Model120Compare	Model140Compare
Full Load Efficiency — Stages: 1%	≥95	≥95	≥95	≥95
Full Load Efficiency — Stages: 2%	≥92	≥92	≥92	≥92
Standard Backlash — Stages: 1arcmin	≤5	≤5	≤5	≤5
Standard Backlash — Stages: 2arcmin	≤8	≤8	≤8	≤8
Precision Backlash — Stages: 1arcmin	≤3	≤3	≤3	≤3
Precision Backlash — Stages: 2arcmin	≤5	≤5	≤5	≤5
NoisedB(A)Measured at 3,000 rpm input, no load, 5:1 ratio.	≤60	≤60	≤65	≤67
LifetimeHoursCatalog life is reduced by half under continuous operation. Confirm the application duty with Mach.	20,000	20,000	20,000	20,000
Max Radial LoadN	1,530	3,250	6,700	9,400
Max Axial LoadN	630	1,300	3,000	4,700
Nominal Input Speedrpm	5,000	4,000	4,000	3,000
Max Input Speedrpm	10,000	8,000	8,000	6,000
Torsional StiffnessNm/archmin	7	14	25	50
Degree of Protection	IP 65	IP 65	IP 65	IP 65
LubricationThe catalog specifies synthetic lubrication. Confirm the required service interval with Mach.	Life Lubrication	Life Lubrication	Life Lubrication	Life Lubrication
Mounting Direction	Any	Any	Any	Any
Nominal Output Torque (Nm) — Stages: 1 — Ratio: 3	55	130	208	342
Nominal Output Torque (Nm) — Stages: 1 — Ratio: 4	50	140	290	542
Nominal Output Torque (Nm) — Stages: 1 — Ratio: 5	60	160	330	650
Nominal Output Torque (Nm) — Stages: 1 — Ratio: 7	50	140	300	550
Nominal Output Torque (Nm) — Stages: 1 — Ratio: 10	40	100	230	450
Nominal Output Torque (Nm) — Stages: 2 — Ratio: 15	55	130	208	342
Nominal Output Torque (Nm) — Stages: 2 — Ratio: 20	50	140	290	542
Nominal Output Torque (Nm) — Stages: 2 — Ratio: 25	60	160	330	650
Nominal Output Torque (Nm) — Stages: 2 — Ratio: 30	55	150	310	600
Nominal Output Torque (Nm) — Stages: 2 — Ratio: 35	50	140	300	550
Nominal Output Torque (Nm) — Stages: 2 — Ratio: 40	50	140	290	542
Nominal Output Torque (Nm) — Stages: 2 — Ratio: 50	60	160	330	650
Nominal Output Torque (Nm) — Stages: 2 — Ratio: 70	50	140	300	550
Nominal Output Torque (Nm) — Stages: 2 — Ratio: 100	40	100	230	450
Max Output Torque (Nm)	2.5 Times Nominal Output Torque	2.5 Times Nominal Output Torque	2.5 Times Nominal Output Torque	2.5 Times Nominal Output Torque
Model/ Size — Stages: Stages — Ratio: Ratio	60	90	120	140

Additional specifications12 more specifications

MZS additional specifications. Units appear with each row label.
SpecificationUnits shown below	Model60Compare	Model90Compare	Model120Compare	Model140Compare
Weight — Stages: 1kg	1.35	4.25	9.15	14.6
Weight — Stages: 2kg	1.7	7	13	19.2
Operating TemperatureºC	-10 ~ 90	-10 ~ 90	-10 ~ 90	-10 ~ 90
Mass Moments of Inertia (Kg-cm²) — Stages: 1 — Ratio: 3	0.16	0.61	3.25	9.21
Mass Moments of Inertia (Kg-cm²) — Stages: 1 — Ratio: 4	0.14	0.48	2.74	7.54
Mass Moments of Inertia (Kg-cm²) — Stages: 1 — Ratio: 5	0.13	0.47	2.71	7.42
Mass Moments of Inertia (Kg-cm²) — Stages: 1 — Ratio: 7	0.13	0.45	2.62	7.14
Mass Moments of Inertia (Kg-cm²) — Stages: 1 — Ratio: 10	0.13	0.44	2.57	7.03
Mass Moments of Inertia (Kg-cm²) — Stages: 2 — Ratio: 15,20,25	0.13	0.47	2.71	7.42
Mass Moments of Inertia (Kg-cm²) — Stages: 2 — Ratio: 35	0.13	0.45	2.57	7.14
Mass Moments of Inertia (Kg-cm²) — Stages: 2 — Ratio: 30,40,50	0.13	0.44	2.62	7.03
Mass Moments of Inertia (Kg-cm²) — Stages: 2 — Ratio: 70,100	0.13	0.13	0.44	2.57

Published model and configuration identifiers are shown as listed by Mach. Options are not complete ordering part numbers. Values with different units or operating conditions remain separate.

Your application

Send Mach the application details.

Share the motion, load and interface requirements so Mach can check the exact configuration.

Torque, speed and operating cycle
Send the required ratio or input/output speeds, running torque, acceleration and stopping loads, operating cycle and ambient conditions. The catalog lists 20,000 hours of life and states that life is reduced by half under continuous operation; have Mach confirm the life requirement for your cycle.
Accuracy and output loading
Specify the backlash class, radial and axial loads, where each load acts, and any reversing or shock load. Mach should confirm the combined-load limits for the selected size.
Motor and mechanical interfaces
Send the motor model and a drawing showing its shaft, flange, pilot and bolt pattern. Include the output connection and available space. Check the exact motor adapter and the stage-specific overall length before ordering.
Mounting instructions
Use the linked mounting guide with the instructions for the supplied gearbox and motor adapter. Confirm the actual clamp bolt, hardware grade and tightening requirement with Mach before assembly.

Ask Mach to confirm a selection

Replacing a gearbox? Send the full part number and the motor, output and mounting drawings for a dimensional check.

02 / Drawing