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MZSR Right-Angle Gearboxes

MZSR right-angle gearboxes offer catalog sizes 60 and 90 with single- and double-stage ratio choices. Compare a defined configuration and open the size profiles and stage-specific dimension table.

MZSR Series / Gearboxes

Match the ratio and stage to the motion.

MZSR combines a right-angle spiral-bevel arrangement with two catalog sizes: 60 and 90. The profile drawings show a keyed output shaft. Choose the listed ratio and stage, then verify the motor interface and application loads.

Ask about this family View specifications ↓

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

01 / Family specifications

The details that matter.

Ratio and stage

One stage

Single-stage configurations

Use the single-stage ratings and overall length for the selected size.

Catalog ratios: 3:1 · 4:1 · 5:1 · 7:1 · 10:1
Standard backlash: ≤8 arcmin

Two stages

Double-stage configurations

Use the double-stage ratings and overall length for the selected size.

Catalog ratios: 15:1 · 20:1 · 25:1 · 30:1 · 35:1 · 40:1 · 50:1 · 70:1 · 100:1
Standard backlash: ≤10 arcmin

Ratios are discrete catalog configurations. Ask Mach to confirm the complete ratio, stage, backlash requirement and motor adapter. Size codes are not complete ordering part numbers.

Compare sizes at 5:1, single stage.

This snapshot compares both catalog sizes at the same listed ratio and stage. Use the performance rows for the required ratio if it differs.

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

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MZSR catalog size comparison at 5:1 single stage
Catalog model	Nominal output torqueN·m	Nominal input speedrpm	Single-stage gearbox weightkg
60View model	60	5,000	1.35
90View model	160	4,000	4.25

Nominal torque duty and test conditions are not stated, and the catalog does not explicitly tie torque to the nominal input-speed row. Have Mach confirm the complete operating point. Maximum input speed and maximum output torque remain separate limits.

All MZSR ratios and performance data MZSR-60 and MZSR-90 profile drawings MZSR dimension table with stage-specific lengths

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.

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

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MZSR performance specifications. Units appear with each row label.
SpecificationUnits shown below	Model60Compare	Model90Compare
Full Load Efficiency — Stages: 1%	≥93	≥93
Full Load Efficiency — Stages: 2%	≥90	≥90
Standard Backlash — Stages: 1arcmin	≤8	≤8
Standard Backlash — Stages: 2arcmin	≤10	≤10
NoisedB(A)Measured at 3,000 rpm input, no load and ratio i = 5.	≤70	≤70
LifetimeHoursCatalog condition: life is reduced by half under continuous operation.	20,000	20,000
Max Radial LoadN	1,530	3,250
Max Axial LoadN	630	1,300
Nominal Input Speedrpm	5,000	4,000
Max Input Speedrpm	10,000	8,000
Torsional StiffnessNm/archmin	7	14
Degree of Protection	IP65	IP65
Lubrication	Synthetic lubrication	Synthetic lubrication
Mounting Direction	Any	Any
Nominal Output Torque (Nm) — Stages: 1 — Ratio: 3	55	130
Nominal Output Torque (Nm) — Stages: 1 — Ratio: 4	50	140
Nominal Output Torque (Nm) — Stages: 1 — Ratio: 5	60	160
Nominal Output Torque (Nm) — Stages: 1 — Ratio: 7	50	140
Nominal Output Torque (Nm) — Stages: 1 — Ratio: 10	40	100
Nominal Output Torque (Nm) — Stages: 2 — Ratio: 15	55	130
Nominal Output Torque (Nm) — Stages: 2 — Ratio: 20	50	140
Nominal Output Torque (Nm) — Stages: 2 — Ratio: 25	60	160
Nominal Output Torque (Nm) — Stages: 2 — Ratio: 30	55	150
Nominal Output Torque (Nm) — Stages: 2 — Ratio: 35	50	140
Nominal Output Torque (Nm) — Stages: 2 — Ratio: 40	50	140
Nominal Output Torque (Nm) — Stages: 2 — Ratio: 50	60	160
Nominal Output Torque (Nm) — Stages: 2 — Ratio: 70	50	140
Nominal Output Torque (Nm) — Stages: 2 — Ratio: 100	40	100
Max output torque	2.5 times of nominal output torque	2.5 times of nominal output torque

Additional specifications12 more specifications

MZSR additional specifications. Units appear with each row label.
SpecificationUnits shown below	Model60Compare	Model90Compare
Weight — Stages: 1kg	1.35	4.25
Weight — Stages: 2kg	1.7	7
Operating TemperatureºC	-10 ~ 90	-10 ~ 90
Mass Moments of Inertia (kg-cm²) — Stages: 1 — Ratio: 3	0.16	0.61
Mass Moments of Inertia (kg-cm²) — Stages: 1 — Ratio: 4	0.14	0.48
Mass Moments of Inertia (kg-cm²) — Stages: 1 — Ratio: 5	0.13	0.47
Mass Moments of Inertia (kg-cm²) — Stages: 1 — Ratio: 7	0.13	0.45
Mass Moments of Inertia (kg-cm²) — Stages: 1 — Ratio: 10	0.13	0.44
Mass Moments of Inertia (kg-cm²) — Stages: 2 — Ratio: 15, 20, 25	0.13	0.47
Mass Moments of Inertia (kg-cm²) — Stages: 2 — Ratio: 35	0.13	0.45
Mass Moments of Inertia (kg-cm²) — Stages: 2 — Ratio: 30, 40, 50	0.13	0.44
Mass Moments of Inertia (kg-cm²) — Stages: 2 — Ratio: 70, 100MZSR-90 at 70:1 and 100:1: confirm the catalog value of 0.13 kg·cm² and its reference shaft with Mach before motor sizing.	0.13	0.13

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 complete motion requirements.

Provide the ratio, stage, load cycle and motor interface so Mach can check the selected size.

Torque, speed and life
Send running torque, acceleration and stopping loads, input/output speeds, duty cycle and ambient conditions. The catalog lists 20,000 hours of life and states that life is reduced by half under continuous operation. Confirm the life requirement for your operating cycle.
Backlash, loads and noise
Specify backlash, reversing duty, radial and axial loads and their positions. If noise matters, note that the catalog’s ≤70 dB(A) value is measured at 3,000 rpm input, no load and ratio 5; ask Mach to assess the actual operating point.
Motor, output and space
Send the motor model or drawing, shaft and pilot dimensions, bolt pattern, coupling details and available space. Use the dimension table for the chosen stage and confirm the supplied adapter and mounting hardware before assembly.

Ask Mach to confirm your MZSR selection

02 / Drawing

A closer look.

Review the mounting, shaft and motor connection in the catalog. Open a model from the specifications for its details and dimensional drawing.

Open larger

MZSR-60 and MZSR-90 symbolic profiles · PDF page 7PDF · Opens in a new tab

03 / Downloads

Documents & references.

MZSR size profile drawings

Shared right-angle catalog, physical page 7 (printed 028). Size-specific profiles for MZSR-60 and MZSR-90; the following page supplies the dimensions and stage-specific lengths.

PDF