High Stiffness Reducer DGH type

High Stiffness Reducer DGH type

5Frame Sizes

OD: 71mm /81mm /95mm /110mm /142mm

3stage Reduction

1/19・1/29・1/59

Features

Large hollow shaft enables great freedom in product design and composition. Compact but can achieve high precision with powerful drive.
The use of a differential reducer mechanism (eccentric oscillation type) achieves high torsional rigidity and allowable torque. Because the gear engagement ratio remains effectively the same even when the reduction ratio changes, a large torque can be obtained even at a low reduction ratio. In addition, the large hollow diameter makes it easy for wiring, piping, shafts and the like to go through, greatly enhancing the degree of freedom you can enjoy in designing robots and devices. Helps improve the productivity.

Large Hollow Shaft with High Stiffness and High Torque

Designed for maximum performance.

The use of a differential reducer mechanism (eccentric oscillation type) achieves high torsional rigidity and high allowable torque. As well, the cross roller bearing integrated with the output shaft keeps the unit compact while ensuring higher moment stiffness. Even if the reduction Ratio changes, the Meshing does not change so the allowable torque is constant. High torque can be obtained even at low reduction ratios.

偏心揺動型の差動減速機構の採用

The large hollow shaft enhances freedom of design.

The large hollow shaft not only makes it easier to pass wiring, piping, shafts, etc. but also enables increased wiring, encompassing even thick wires. It avoids interference with the robot body or peripheral devices, reducing bending and tensile loads.

ロボット向け高精度減速機・構造

Structure

[Structure] A structure with high precision.

Oil Seal (Output) Oil Seal (Output)
cross Roller Bearing cross Roller Bearing
Single-Row Deep Groove Ball Bearing (Input) Single-Row Deep Groove Ball Bearing (Input)
Planetary Gear (2 pcs) Planetary Gear (2 pcs)
Crankshaft Crankshaft
Needle Pin Needle Pin
Metal/Reaction Pin Metal/Reaction Pin
Carrier support Carrier support
Ring Gear Ring Gear
Bracket Bracket
Oil Seal (Input) Oil Seal (Input)
High Stiffness Reducer Structure Explanatory Drawing

Proposal of Customized Specifications

Reducer for Magazines

Usable in magazine drive parts for #30 Machining Center

Reducer for Magazines

Actuator Drive Unit(Example of Collaboration with a Motor Manufacturer) )

Achieved unitization with a hollow DD motor.
This device can provide hollow structure at the center of rotation.
Usable for driving turntables and more.

Actuator Drive Unit

Model

型式
① Model name DG Series
② Type H: Large Hollow Shaft
③ Frame Size* 010:10N·m
030:29N·m
040:44N·m
080:82N·m
150:153N·m
④ Reduction ratio 019:1/19
029:1/29
059:1/59
⑤ Special code For special specifications, additional identification symbols will be used.

* Each Frame Size represents their corresponding Rated Torque

Selection Process

The high stiffness reducer can be selected as follows. Download the catalog for details.

1

Calculation of average load torque on output shaft side in terms of usage

2
-1

Calculation of average output RPM

2
-2

Deciding on reduction ratio

2
-3

Calculation of average input RPM

2
-4

Calculation of maximum input RPM

3

Confirmation of whether the usage conditions meet the Performance Table values

4

Calculation of reducer Life time

CAD data

CAD data for High Stiffness Reducers can be downloaded from the Selection Tools.

CAD Data Download Procedure

On page "Filter Search", select the Solid/Hollow Bore/Flat Type(DGS/DGH/DGF).

Select the narrowing criterias in the middle section and you can download the CAD data for the model displayed in the bottom section.

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