China Standard Drive Spur Transmission Sun Planetary Gear bevel gearbox

Product Description

Product Description

Product Parameters

Item Spur Gear Axle Shaft
Material 4140,4340,40Cr,42Crmo,42Crmo4,20Cr,20CrMnti, 20Crmo,35Crmo
OEM NO Customize
Certification ISO/TS16949
Test Requirement Magnetic Powder Test, Hardness Test, Dimension Test
Color Paint , Natural Finish ,Machining All Around
Material Aluminum: 5000series(5052…)/6000series(6061…)/7000series(7075…)
Steel: Carbon Steel,Middle Steel,Steel Alloy,etc.
Stainess Steel: 303/304/316,etc.
Copper/Brass/Bronze/Red Copper,etc.
Plastic:ABS,PP,PC,Nylon,Delrin(POM),Bakelite,etc.
Size According to Customer’s drawing or samples
Process CNC machining,Turning,Milling,Stamping,Grinding,Welding,Wire Injection,Cutting,etc.
Tolerance ≥+/-0.03mm
Surface Treatment (Sandblast)&(Hard)&(Color)Anodizing,(Chrome,Nickel,Zinc…)Plating,Painting,Powder Coating,Polishing,Blackened,Hardened,Lasering,Engraving,etc.
File Formats ProE,SolidWorks,UG,CAD,PDF(IGS,X-T,STP,STL)
Sample Available
Packing Spline protect cover ,Wood box ,Waterproof membrane; Or per customers’ requirements.

 

Our Advantages

Why Choose US ???

1. Equipment :

Our company boasts all necessary production equipment,
including Hydraulic press machines, Japanese CNC lathe (TAKISAWA), Korean gear hobbing machine (I SNT), gear shaping machine, machining center, CNC grinder, heat treatment line etc.

2. Processing precision:

We are a professional gear & gear shafts manufacturer. Our gears are around 6-7 grade in mass production.

3. Company:

We have 90 employees, including 10 technical staffs. Covering an area of 20000 square meters.

4. Certification :

Oue company has passed ISO 14001 and TS16949

5.Sample service :

We provide free sample for confirmation and customer bears the freight charges

6.OEM service :

Having our own factory and professional technicians,we welcome OEM orders as well.We can design and produce the specific product you need according to your detail information

 

Cooperation Partner

Company Profile

Our Featured Products

 

Application: Motor, Electric Cars, Motorcycle, Machinery, Marine, Agricultural Machinery, Car
Manufacturing Method: Cast Gear
Toothed Portion Shape: Spur Gear
Material: Stainless Steel
Type: Circular Gear
Yield: 5, 000PCS / Month
Samples:
US$ 0/Piece
1 Piece(Min.Order)

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Request Sample

Customization:
Available

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Customized Request

sun gear

Can sun gears be used in automotive applications?

Sun gears are widely used in various automotive applications, playing crucial roles in different systems. Let’s explore the automotive applications where sun gears are commonly employed:

  • Automatic Transmissions:

Sun gears are integral components of automatic transmissions in vehicles. Automatic transmissions use planetary gear systems, where the sun gear is one of the key elements. The interaction between the sun gear, planet gears, and ring gear allows for different gear ratios and smooth shifting between gears.

In automatic transmissions, the sun gear is driven by the engine’s input shaft and transmits power to the other gears. By controlling the engagement of various clutches and brakes within the transmission, the sun gear enables seamless gear changes, optimizing vehicle performance and fuel efficiency.

  • Transfer Cases:

In four-wheel-drive and all-wheel-drive vehicles, transfer cases distribute power between the front and rear wheels. Sun gears are utilized in transfer cases to facilitate power transfer and gear reduction.

The sun gear, along with other gears and components, helps control the torque distribution and gear ratios between the front and rear axles. This allows vehicles to adapt to different driving conditions, such as slippery surfaces or off-road terrain, enhancing traction and stability.

  • Starter Motors:

Sun gears are employed in starter motors, which are responsible for cranking the engine during startup. Starter motors use a gear reduction mechanism to convert the electric motor’s high-speed rotation into a higher torque output.

The sun gear, along with other gears like the planetary gears, enables the gear reduction necessary to generate sufficient torque to crank the engine. This gearing arrangement allows for efficient and reliable engine starting, even in challenging conditions.

  • Power Seats and Windows:

Sun gears can also be found in power seat and power window mechanisms in vehicles. These systems use electric motors to adjust seat positions or operate windows.

The sun gear, along with other gears and mechanisms, converts the rotational motion of the electric motor into linear movement, enabling precise adjustments of seat positions or smooth operation of windows. The use of sun gears ensures reliable and efficient functionality of these systems.

  • Other Automotive Systems:

Sun gears may also have applications in other automotive systems. For example, they can be found in power steering systems, where they contribute to the gear reduction and power transmission required for smooth steering operation.

Furthermore, sun gears can be utilized in various auxiliary systems, such as cooling fans, HVAC (heating, ventilation, and air conditioning) systems, and engine accessories. These applications leverage the sun gear’s ability to facilitate power transmission and gear reduction, enhancing the efficiency and performance of these systems.

In summary, sun gears are extensively used in automotive applications, including automatic transmissions, transfer cases, starter motors, power seats and windows, power steering systems, and auxiliary systems. Their presence in these systems enables crucial functions such as gear shifting, power distribution, gear reduction, and efficient power transmission. Sun gears contribute to the overall performance, reliability, and functionality of automotive systems, enhancing the driving experience and vehicle efficiency.

sun gear

How do you calculate gear ratios involving a sun gear in planetary systems?

Calculating gear ratios in planetary systems involving a sun gear requires considering the number of teeth on the gears and their arrangement. Understanding the calculation process helps in determining the gear ratio and predicting the rotational relationship between the input and output gears. Here’s an explanation of how to calculate gear ratios involving a sun gear in planetary systems:

  • Step 1: Identify the Gears: In a planetary system, identify the gears involved, namely the sun gear, planet gears, and ring gear. The sun gear is the gear at the center, surrounded by the planet gears, which in turn engage with the outer ring gear.
  • Step 2: Count the Teeth: Count the number of teeth on each gear. The sun gear, planet gears, and ring gear all have a specific number of teeth. Let’s denote these as Ts (sun gear teeth), Tp (planet gear teeth), and Tr (ring gear teeth).
  • Step 3: Determine the Gear Ratio: The gear ratio in a planetary system involving a sun gear is calculated using the following formula:

Gear Ratio = (Tp + Tr) / Ts

  • Step 4: Interpret the Gear Ratio: The calculated gear ratio represents the rotational relationship between the input (sun gear) and output (ring gear) gears. For example, if the gear ratio is 2:1, it means that for every two revolutions of the sun gear, the ring gear completes one revolution in the opposite direction.
  • Step 5: Adjust for Multiple Planet Gears or Fixed Components: In some cases, planetary systems may involve multiple planet gears or fixed components. The presence of multiple planet gears affects the gear ratio, and the inclusion of fixed components alters the gear engagement and behavior. These factors may require additional calculations or adjustments to accurately determine the gear ratio.

In summary, calculating gear ratios involving a sun gear in planetary systems necessitates identifying the gears, counting the teeth on each gear, and applying the appropriate formula. The resulting gear ratio provides insights into the rotational relationship between the sun gear and the ring gear. It’s important to consider any additional elements, such as multiple planet gears or fixed components, that may influence the gear ratio calculation.

sun gear

Can you explain the role of a sun gear in planetary gear systems?

The sun gear plays a crucial role in planetary gear systems, contributing to their unique functionality and versatility. Understanding the specific role of the sun gear within these systems helps in comprehending their overall operation. Here’s an explanation of the role of a sun gear in planetary gear systems:

  • Power Input: The sun gear serves as the primary power input element in a planetary gear system. It receives rotational motion and torque from an external source, such as an engine or motor. This power input is transmitted to other gears within the system.
  • Engagement with Planet Gears: One of the distinctive features of a planetary gear system is the interaction between the sun gear and multiple planet gears. The planet gears are smaller gears that surround the sun gear and mesh with both the sun gear and an outer ring gear. This engagement allows for the transfer of torque and motion between the gears.
  • Power Distribution: As the sun gear rotates, it transmits torque to the planet gears through their meshing teeth. The planet gears, in turn, transfer the torque to the outer ring gear. This power distribution mechanism enables the sharing of torque among multiple gears within the system, allowing for load distribution and efficient power transmission.
  • Gear Ratio Control: By changing the arrangement and sizes of the sun gear, planet gears, and ring gear, planetary gear systems can achieve different gear ratios. The number of teeth on the sun gear, planet gears, and ring gear, as well as their relative sizes, determine the gear ratio. This flexibility in gear ratio control enables planetary gear systems to provide various output speeds and torque levels, catering to different operational requirements.
  • Torque Amplification: A key advantage of planetary gear systems is their ability to amplify torque. By employing a combination of the sun gear, planet gears, and ring gear, torque can be multiplied or reduced depending on the gear ratio configuration. This torque amplification feature is beneficial in applications where high torque output is required, such as automotive transmissions and heavy machinery.
  • Directional Control: Another notable aspect of planetary gear systems is their directional control capability. By fixing or holding the sun gear while the ring gear or planet carrier is driven, the gear system can achieve different output directions, such as forward or reverse rotation. This directional control adds versatility to gear systems, enabling them to be used in various mechanical applications.

In summary, the sun gear in planetary gear systems serves as the power input element, engages with planet gears, distributes torque, controls gear ratios, provides torque amplification, and enables directional control. Its role is essential in achieving efficient power transmission, versatile gear ratios, and adaptable functionality in a wide range of mechanical applications.

China Standard Drive Spur Transmission Sun Planetary Gear bevel gearboxChina Standard Drive Spur Transmission Sun Planetary Gear bevel gearbox
editor by CX 2023-09-11