Open Loop Stepper Motor Hollow Shaft Rotary Actuator

This is the Hollow Rotary Actuator model number GSN85-18K-OS with table size 85mm gear ratio 1:18 and open loop stepper motor. The OS type of GIGAGER Hollow Rotary Actuator is a line of products that combine a high rigidity hollow rotary table with a dedicated open loop stepper motor and driver package. It retains the ease of use of a stepper motor, while also allowing for highly accurate positioning of large inertia loads.
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Product Details

This is the Hollow Rotary Actuator model number GSN85-18K-OS with table size 85mm gear ratio 1:18 and open loop stepper motor. The OS type of GIGAGER Hollow Rotary Actuator is a line of products that combine a high rigidity hollow rotary table with a dedicated open loop stepper motor and driver package. It retains the ease of use of a stepper motor, while also allowing for highly accurate positioning of large inertia loads.


1. Specification of Model GSN85-18K-OS

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Parameter

Motor Type

Dedicated Open Loop Stepper Motor

Rotary Platform Bearing

Cross Roller Bearing

Permissible Torque

N.m

3.2

Permissible Speed

rpm

60(Table Surface)

Gear Ratio

1:18

Moment of Inertia

kg.m2

2534×10-6

Permissible Axial Load

N

500

Permissible Moment of Inertia Load

N.m10

Positioning Accuracy

min

≦ 2

Repeatability

sec±5 ( 0.001° )

Platform Flatness

mm

±0.005

Platform Concentricity

mm

±0.01

Ingress Protection

IP

40

Precision Lifespan

H

20000

Weight

kg

1.2(including motor)


Motor Parameter

Dimension

mm

42

Rated Voltage V/phase

3.25

Rated Current A/phase

1.3

Coil Impedance Ω/phase

2.5

Coil Inductance

mh

6.0

Holding Torque

N.m

0.6

Moment of   Inertia

g.cm2

82

Motor Length

mm

64

Ingress   Protection

IP

20

Step Angle

1.8°

Lead

4


Driver

Input Voltage

DC24V

Command Input

Pulse + Direction DC5V

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2. What is the Hollow Rotary Actuator?

The Hollow Rotary Actuator is a brand-new kind of rotating load device. Incorporating high transmission efficiency, high precision, high rigidity, and high cost performance, it combines the advantages of the servo motor, cam indexer and DD motor, obtaining a balance between these three products.

Gears are made of high strength carburizing alloy steel and the hardness of the tooth surface after carburizing can reach HRC60±2°.

With the help of packaged precise open loop stepper motor, the Hollow Rotary Actuator can make segments at any angle, which can meet the digit control that the cam indexer cannot achieve. The positioning accuracy is comparable with the direct drive motor which can realize the positioning of the inertia load in a short time.

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3. What is the Product Features of OS type Hollow Rotary Actuator? 

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4. System Configuration of OS Type Hollow Rotary Actuator


5. How Many OS Model Are Available?

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6. What Type of Device Could Use the Hollow Rotary Actuator?

Demo Video Link:

a. Demo for Gyro Test  https://youtu.be/PwKiObIMXRM

b. Demo for the 4th Axis or 5th Axis  https://youtu.be/L9gheXQ6zLc

For more video, please click GIGAGER Youtube Channel: https://www.youtube.com/playlist?list=PLT-2VrhPP3YItwfN_wA4YkS8bzfBpJu39


7. How to Select the Right Model for My Device?

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For more info of model selection of Hollow Rotary Actuator, please refer to the Model Selection Pages in Catalogue.


8. Why choose GIGAGER?


9. FAQ


10. Related Knowledge

Guangdong Saini Intelligent Equipment Technology Co., Ltd owns the brand G+, named GIGAGER.

The brand has been registered in China, Chinese Taiwan, Japan, Germany, India, Malaysia, Thailand, Australia, Canada, Singapore, etc.

Now, the brand G+ has become the leading brand of speed reducer in China market.

Saini Intelligent owns 43 sets of various CNC and over 40 sets of professional testing instruments, including 15 sets of Five-axis Five Linkage CNC, 18 sets of Four-axis Four Linkage CNC, 5 sets of Three-axis CNC, 5 sets of Cam Five-axis CNC, 3 sets of Milling Machine.

Angular Contact Ball Bearings can withstand both radial and axial loads. Can work at higher speeds. The larger the contact angle, the higher the axial load carrying capacity. High precision and high speed bearings typically take a 15 degree contact angle. Under the axial force, the contact angle will increase.

Tapered roller bearings are separate bearings, and the inner and outer rings of the bearing have tapered raceways. This type of bearing is divided into different structural types such as single row, double row and four row tapered roller bearings according to the number of rows of rollers installed. Single row tapered roller bearings can withstand radial loads and axial loads in a single direction. When the bearing is subjected to a radial load, an axial component will be generated, so that another bearing that can withstand the axial force in the opposite direction is needed to balance.

In the case of tapered roller bearings and angular contact bearings, the roller is different, one is a sphere (point contact), and the other is a roller (line contact). Of course, the line contact has a large load and a strong rigidity. The angular contact is mainly subjected to axial load; the tapered roller bearing is subjected to axial and radial loads and transmits a unidirectional axial load. Angular contact bearings are generally used in areas where the pressure is low and the speed is high, such as a water pump. Stand up and wash. Tapered roller bearings are generally used in parts where the rotational speed is relatively low and the pressure is high, such as the automobile main shaft.

GIGAGER Hollow Rotary Table adopts these cross roller bearing and tapered roller bearing with different performance. The table which uses cross roller bearing can be installed horizontal and vertical, while the table which uses tapered roller bearing only can installed horizontal.


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