Is the equipment space too cramped? Master these 4 selection techniques and easily handle ultra-thin reducers!

The core of choosing ultra-thin reducers in compact equipment is to balance "ultimate space utilization" with "equipment performance requirements". To effectively save installation space, it is recommended to select and design from the following dimensions:

1. Clarify core performance and spatial constraints

Before selecting, it is necessary to first clarify the specific requirements of the equipment to avoid blindly pursuing ultra-thin designs that may result in mismatched performance

Torque and load accounting: Gearboxes with limited space usually have a lower rated torque (for example, some micro products have a rated torque of less than 100N · m). It is necessary to accurately calculate the load demand and reserve a safety factor of 1.5~2.0 to cope with the impact load during start stop.

Accuracy and backlash requirements: For precision scenarios such as robot joints and semiconductor equipment, products with extremely small backlash (close to zero or<1 arc minute) should be selected, such as harmonic reducers or precision planetary reducers.

Size limit: Specify the maximum allowable outer diameter and axial thickness of the equipment. At present, excellent ultra-thin products can have diameters as small as 30mm, and some thicknesses can even be controlled below 30mm.

2. Optimal selection of structural types for ultra-thin reducers

For different space limitations, the following types of reducers designed specifically for compact spaces can be selected:

Harmonic reducer (CSD/SHD series): This type of product is developed specifically for ultra-thin requirements, using a hollow structure and flat shape. Especially for the SHD series, its axial length can be reduced by about 50% compared to conventional models, making it extremely suitable for scenarios that require extremely flat designs.

Ultra thin servo actuator: If space is extremely limited, you can choose an actuator that integrates the reducer and motor design. For example, the FHA-C mini series has a body thickness of only one-third of traditional products and supports hollow through wiring, greatly simplifying the mechanical structure.

Compact planetary gearbox: Some servo planetary gearboxes adopt innovative orthogonal axis design, reducing installation depth by about 25% compared to traditional models, and supporting hollow axis design, which facilitates cable and air pipe penetration and saves wiring space.

Parallel axis helical gear reducer: If a super large speed ratio is not required, the F series parallel axis helical gear reducer is known as the "space killer". It has a super compact body, high transmission efficiency, and long service life, making it very suitable for installation in extremely small places.

3. Flexible selection of installation methods

The installation method directly affects the spatial adaptability of the gearbox, and a reasonable layout can further "squeeze" out space:

Flange installation: directly fixed to the equipment housing or servo motor through the end face flange, eliminating the need for base space and making the structure the most compact.

Hollow shaft installation: Choose a model with a hollow structure for the output shaft and directly fit it onto the drive shaft (usually locked with a tensioning sleeve), saving coupling space and making alignment more convenient.

90 degree right angle output: If the device is limited in space in a certain direction, a 90 degree compact motor reducer can be selected to significantly improve the flexibility of mechanical integration in narrow spaces by changing the transmission direction.