Transtecno CM070 20:1 Worm Gearbox – 28mm Hollow Bore

This Transtecno CM070 20:1 worm gearbox is built for applications needing balanced output speed reduction with a useful torque increase. Its 28mm hollow bore output, modular CM-series construction, and right-angle layout make it a practical choice for conveyors, handling systems, process machinery, and automation equipment requiring dependable speed reduction.

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Gearbox Overview

The CM070 size is designed for higher-capacity industrial drives where increased torque and robust performance are required. This version uses a 28mm hollow output bore and the Transtecno CM wormgearbox format, giving you a compact right-angle drive package that can be paired with suitable IEC motor inputs depending on the configuration required.

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Why Choose This Configuration?

This exact model is best suited to buyers who specifically need a CM070 gearbox with a 20:1 ratio and a 28mm hollow bore output. Medium ratios offer a versatile middle ground, reducing speed enough to improve torque while still maintaining practical shaft rpm for many industrial drives. Compared with larger sizes, this version is usually preferred where installation space matters, while still delivering the dependable performance expected from the Transtecno CM range.

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Technical Details

Gearbox size: CM070
Gear ratio: 20:1
Output bore: 28mm hollow bore
Gearbox series: Transtecno CM wormgearboxes
Housing material: Die-cast aluminium
Motor input compatibility: IEC motor input adaptors, depending on size and motor frame
Mounting positions: M1 (B3), M2 (V6), M3 (B8), M4 (V5), M5 (B7), M6 (B6)
Lubrication: Permanent synthetic oil long-life lubrication, viscosity grade 320
Maintenance: Maintenance-free under normal operating conditions
Operating temperature: -35°C to +50°C
Approximate gearbox weight: 7.5kg
Construction notes: Compact modular CM wormgearbox design

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Internal Links & Compatible Options

Same gearbox size, different ratios: jump to nearby CM070 ratio options.

Same ratio, different gearbox sizes: explore nearby sizes offering a 20:1 ratio.

More Transtecno gearboxes: Browse all CM070 worm gearboxes Browse all Transtecno worm gearboxes

Helpful calculators:
Gearbox Ratio & Speed Calculator |
Output Torque Calculator

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Frequently Asked Questions

What does a 20:1 worm gearbox do?

A 20:1 worm gearbox reduces the input speed and increases available output torque through a compact right-angle transmission arrangement. In practice, this means a balanced reduction between output speed and torque multiplication.

What is this CM070 gearbox commonly used for?

This gearbox is commonly used in conveyors, packaging machinery, feeders, process equipment, material handling systems, and general industrial machinery where compact right-angle speed reduction is required.

What housing material does this gearbox use?

This model uses a Die-cast aluminium housing. In the Transtecno CM range, sizes 030 to 110 are aluminium, while size 130 is cast iron.

Does this gearbox require regular oil changes?

Under normal operating conditions, no. The CM wormgearbox range is supplied with permanent synthetic oil long-life lubrication, viscosity grade 320, so it is generally considered maintenance-free.

Can this gearbox be mounted in different positions?

Yes. The CM range can be installed in multiple mounting positions including M1 (B3), M2 (V6), M3 (B8), M4 (V5), M5 (B7), and M6 (B6).

What operating temperature range applies?

For this gearbox size, the standard operating temperature range is -35°C to +50°C, subject to correct installation and normal operating conditions.