Tag Archives: motor and reducer

China Hot selling Planetary NEMA23 Geared Stepper Motor 76mm Gearbox Ratio 10: 1 Stepper Speed Reducer CNC Router Engraver gearbox and motor

Product Description

Specification:
 

Model No. Step Angle Motor Length Current
/Phase
Resistance
/Phase
Inductance
/Phase
Holding Torque # of Leads Detent Torque Rotor Inertia Mass
( °) (L1)mm A Ω mH N.m No. g.cm g.cm Kg
JK57HS41-2804 1.8 41 2.8 0.7 1.4 0.55 4 250 150 0.47
JK57HS51-2804 1.8 51 2.8 0.83 2.2 1.01 4 300 230 0.59
JK57HS56-2804 1.8 56 2.8 0.9 2.5 1.2 4 350 280 0.68
JK57HS64-2804 1.8 64 2.8 0.8 2.3 1 4 400 300 0.75
JK57HS76-2804 1.8 76 2.8 1.1 3.6 1.89 4 600 440 1.1
JK57HS82-3004 1.8 82 3 1.2 4 2.1 4 1000 600 1.2
JK57HS100-4204 1.8 100 4.2 0.75 3 3 4 1100 700 1.3
JK57HS112-4204 1.8 112 4.2 0.9 3.8 3.1 4 1200 800 1.4

 Reduction ratio 3.6 4.25 13 15 18 23 47 55 65 77 121 154 187 220 260 307
 Number of gear trains 1 2 3 4
(L2) Length(mm) 37.8 49.5 60.8 71.9
Max.rated torque(N.m) 3 12 24 30
Short time permissible torque(N.m) 9 36 72 90
Efficiency( %) 90%       81% 73% 66%
Weight(g) 489 681 871 1066

Drawing(unit=mm)

 

Applications:

Used for 3D printer ,
electronic automatic equipment stepping motor,
medical instrument stepping motor,
advertising instrument stepper motor,
lighting& audio equipment stepper motor,
printer stepper motor, textile machinery stepper motor.
Cnc router stepper motor.

Other product:
Stepper motor
brushless dc motor
DC motor
Spindle motor
Driver(stepper driver and BLDC driver)
Linear motor
Easy servo motor and so on

Production Steps

 

Application: Nc Machine Tool
Speed: Low Speed
Number of Stator: Two-Phase
Excitation Mode: HB-Hybrid
Function: Driving
Number of Poles: 2
Samples:
US$ 25/Piece
1 Piece(Min.Order)

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Request Sample

Customization:
Available

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Customized Request

planetary gearbox

Impact of Gear Tooth Design and Profile on the Efficiency of Planetary Gearboxes

The design and profile of gear teeth have a significant impact on the efficiency of planetary gearboxes:

  • Tooth Profile: The tooth profile, such as involute, cycloid, or modified profiles, affects the contact pattern and load distribution between gear teeth. An optimized profile minimizes stress concentration and ensures smooth meshing, contributing to higher efficiency.
  • Tooth Shape: The shape of gear teeth influences the amount of sliding and rolling motion during meshing. Gear teeth designed for more rolling and less sliding motion reduce friction and wear, enhancing overall efficiency.
  • Pressure Angle: The pressure angle at which gear teeth engage affects the force distribution and efficiency. Larger pressure angles can lead to higher efficiency due to improved load sharing, but they may require more space.
  • Tooth Thickness and Width: Optimized tooth thickness and width contribute to distributing the load more evenly across the gear face. Proper sizing reduces stress and increases efficiency.
  • Backlash: Backlash, the gap between meshing gear teeth, impacts efficiency by causing vibrations and energy losses. Properly controlled backlash minimizes these effects and improves efficiency.
  • Tooth Surface Finish: Smoother tooth surfaces reduce friction and wear. Proper surface finish, achieved through grinding or honing, enhances efficiency by reducing energy losses due to friction.
  • Material Selection: The choice of gear material influences wear, heat generation, and overall efficiency. Materials with good wear resistance and low friction coefficients contribute to higher efficiency.
  • Profile Modification: Profile modifications, such as tip and root relief, optimize tooth contact and reduce interference. These modifications minimize friction and increase efficiency.

In summary, the design and profile of gear teeth play a crucial role in determining the efficiency of planetary gearboxes. Optimal tooth profiles, shapes, pressure angles, thicknesses, widths, surface finishes, and material selections all contribute to reducing friction, wear, and energy losses, resulting in improved overall efficiency.

planetary gearbox

Differences Between Inline and Right-Angle Planetary Gearbox Configurations

Inline and right-angle planetary gearbox configurations are two common designs with distinct characteristics suited for various applications. Here’s a comparison of these configurations:

Inline Planetary Gearbox:

  • Configuration: In an inline configuration, the input and output shafts are aligned along the same axis. The sun gear, planetary gears, and ring gear are typically arranged in a straight line.
  • Compactness: Inline gearboxes are more compact and have a smaller footprint, making them suitable for applications with limited space.
  • Efficiency: Inline configurations tend to have slightly higher efficiency due to the direct alignment of components.
  • Output Speed and Torque: Inline gearboxes are better suited for applications that require higher output speeds and lower torque.
  • Applications: They are commonly used in robotics, conveyors, printing machines, and other applications where space is a consideration.

Right-Angle Planetary Gearbox:

  • Configuration: In a right-angle configuration, the input and output shafts are oriented at a 90-degree angle to each other. This allows for a change in direction of power transmission.
  • Space Flexibility: Right-angle gearboxes offer flexibility in arranging components, making them suitable for applications that require changes in direction or where space constraints prevent a straight-line configuration.
  • Torque Capacity: Right-angle configurations can handle higher torque loads due to the increased surface area of gear engagement.
  • Applications: They are often used in cranes, elevators, conveyor systems, and applications requiring a change in direction.
  • Efficiency: Right-angle configurations may have slightly lower efficiency due to increased gear meshing complexity and potential for additional losses.

Choosing between inline and right-angle configurations depends on factors such as available space, required torque and speed, and the need for changes in power transmission direction. Each configuration offers distinct advantages based on the specific needs of the application.

planetary gearbox

Role of Sun, Planet, and Ring Gears in Planetary Gearboxes

The arrangement of sun, planet, and ring gears is a fundamental aspect of planetary gearboxes and significantly contributes to their performance. Each gear type plays a specific role in the gearbox’s operation:

  • Sun Gear: The sun gear is located at the center and is driven by the input power source. It transmits torque to the planet gears, causing them to orbit around it. The sun gear’s size and rotation speed affect the overall gear ratio of the system.
  • Planet Gears: Planet gears are smaller gears that surround the sun gear. They are held in place by the planet carrier and mesh with both the sun gear and the internal teeth of the ring gear. As the sun gear rotates, the planet gears revolve around it, engaging with both the sun and ring gears simultaneously. This arrangement multiplies torque and changes the direction of rotation.
  • Ring Gear (Annulus Gear): The ring gear is the outermost gear with internal teeth that mesh with the planet gears’ external teeth. It remains stationary or acts as the output shaft. The interaction between the planet gears and the ring gear causes the planet gears to rotate on their own axes as they orbit the sun gear.

The arrangement of these gears allows for various gear reduction ratios and torque multiplication effects, making planetary gearboxes versatile and efficient for a wide range of applications. The combination of multiple gear engagements and interactions distributes the load across multiple gear teeth, resulting in higher torque capacity, smoother operation, and lower stress on individual gear teeth.

Planetary gearboxes offer advantages such as compact size, high torque density, and the ability to achieve multiple gear reduction stages within a single unit. The arrangement of the sun, planet, and ring gears is essential for achieving these benefits while maintaining efficiency and reliability in various mechanical systems.

China Hot selling Planetary NEMA23 Geared Stepper Motor 76mm Gearbox Ratio 10: 1 Stepper Speed Reducer CNC Router Engraver   gearbox and motor	China Hot selling Planetary NEMA23 Geared Stepper Motor 76mm Gearbox Ratio 10: 1 Stepper Speed Reducer CNC Router Engraver   gearbox and motor
editor by CX 2023-09-18

NEMA manufacturer made in China replacement parts in Fukuoka Japan 17 Gear Reducer Stepper Motor with Planetary and Spur Gearbox with top quality

NEMA manufacturer made in China  replacement parts  in Fukuoka Japan 17 Gear Reducer Stepper Motor with Planetary and Spur Gearbox with top quality

We – EPG Team the largest gearbox & motors , couplings and gears manufacturing facility in China with 5 different branches. For a lot more information: Cellular/whatsapp/telegram/Kakao us at: 0086~13083988828 13858117778083988828

Nema 17 planetary gear reducer stepper motor
 

Model No. Rated Voltage Existing
/Stage
Resistance
/Section
Inductance
/Phase
Holding
Tprque
#Of Prospects Rotor Inertia Excess weight Duration
Solitary Shaft Double Shaft V A Ω mH Oz-in g-cm   g-cm2 Kg mm
SM42HT33-0956A SM42HT33-0956B 4 .95 four.two 2.5 22 1580 6 35 0.22 33
SM42HT33-0406A SM42HT33-0406B 9.six .4 24 15
SM42HT33-0316A SM42HT33-0316B 12 .31 38.5 21
SM42HT33-1334A SM42HT33-1334B two.8 1.33 two.one two.five thirty 2200 4
SM42HT38-1206A SM42HT38-1206B 4 1.2 three.3 3.2 36 2590 6 54 0.28 38
SM42HT38-0806A SM42HT38-0806B six .8 7.5 6.7
SM42HT38-0406A SM42HT38-0406B 12 .four thirty thirty
SM42HT38-1684A SM42HT38-1684B two.8 one.sixty eight one.sixty five three.2 fifty 3600 4
SM42HT47-1206A SM42HT47-1206B 4 one.two 3.3 2.eight 44 3170 6 68 0.35 47
SM42HT47-0806A SM42HT47-0806B 6 .8 7.five six.3
SM42HT47-0406A SM42HT47-0406B twelve .4 30 twenty five
SM42HT47-1684A SM42HT47-1684B two.8 1.68 one.65 2.eight 62 4400 four

 
42JX  Planetary equipment reducer parameters     XXX=Reduction Ratio

Reduction Ratio(X:1) three four five 9 twelve 20 25 36 forty eight sixty eighty one hundred one hundred twenty five
Number of gear trains one one one two 2 2 two 3 3 3 three 3 three
Rated output torque(kg.cm) 20 20 twenty thirty 30 thirty thirty forty forty forty 40 forty 40
Gear Box Length(mm) 31.five 31.5 31.5 forty.5 40.five forty.five forty.five forty nine.five 49.five forty nine.5 forty nine.five 49.5 49.five

 

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NEMA manufacturer made in China  replacement parts  in Fukuoka Japan 17 Gear Reducer Stepper Motor with Planetary and Spur Gearbox with top quality

NEMA manufacturer made in China  replacement parts  in Fukuoka Japan 17 Gear Reducer Stepper Motor with Planetary and Spur Gearbox with top quality