China OEM Custom Precision Machine Wheel Transmission Drive Sun Ring Reduction Pinion Spur Gear worm and wheel gear

Product Description

Product Description

Custom Precision Machine Wheel Transmission Drive sun ring Reduction Pinion Spur Gear

Item Customized machined machining gears
Process CNC machining,CNC milling, cnc lathe machining
material  steel, stainless steel, carbon steel,brass,C360 brass copper, aluminum 7075,7068 brass,C360 brass copper, aluminum Nylon, PA66, NYLON , ABS, PP,PC,PE,POM,PVC,PU,TPR,TPE,TPU,PA,PET,HDPE,PMMA etc
Quality Control ISO9001 and ISO14001
Dimension bore tolerances -/+0.01mm
Quality standard AGMA, JIS, DIN 
Surface treatment Blackening, plated, anodizing, hard anodizing etc
Gear hardness 30 to 60 H.R.C
Size/Color Gears and parts dimensions are according to drawings from customer, and colors are customized
Surface treatment Polished or matte surface, painting, texture, vacuum aluminizing and can be stamped with logo etc.
Dimensions Tolerance ±0.01mm or more precise
Samples confirmation and approval samples shipped for confirmation and shipping cost paid by customers
Package Inner clear plastic bag/outside carton/wooden pallets/ or any other special package as per customer’s requirements.
Delivery Time Total takes 2~~8weeks usually

 Usual FEDEX, UPS, DHL, TNT, EMS or base on customer’s requirement.



Production management:

1. The workers are trained to inspect the gears and notice any defect in production in time.
2. QC will check 1pcs every 100pcs in CNC machining, and gears will meet all dimension tolerances.
3. Gears will be inspected at every step, and gears will be inspected before shipment, and all inspection records will be kept in our factory for 3 years.
4. Our sales will send you pictures at every gears production steps, and you will know the detailed production status, and you can notice any possibility of mistake, for our sales, QC and workers are keeping close watch on all production.
5. You will feel us working very carefully to assure the quality and easy to work with, 
6. we cherish every inquiry, every opportunity to make gears and parts and cherish every customer.

1)       Inspecting the raw material –IQC)
2)       Checking the details before the production line operated
3)       Have full inspection and routing inspection during mass production—In process quality control (IPQC)
4)       Checking the gears after production finished—- (FQC)
5)       Checking the gears after they are finished—–Outgoing quality control (OQC)


1. Molds designs as per customers’ gears drawing;
2. Submitting molds drawings to customers to review and confirm before mols production.
3. Providing samples with whole dimensions and cosmetic inspection report, material certification to customers.
4. Providing inspection report of important dimensions and cosmetic in batches parts.

Packing and shipment:

1. Gears are well and carefully packed in PP bags in CTNS, strong enough for express shipping, air shipment or sea shipment.
2. Air shipment, sea shipment or shipment by DHL, UPS, FedEx or TNT are availabe.
3. Trade terms: EXW, FOB HangZhou, or CIF
4. All shippings will be carefully arranged and will reach your places fast and safely.


Q1: How to guarantee the Quality of gears and parts?
We are ISO 9001:2008 certified factory and we have the integrated system for industrial parts quality control. We have IQC (incoming quality control), 
IPQCS (in process quality control section), FQC (final quality control) and OQC (out-going quality control) to control each process of industrial parts prodution.

 Q2: What are the Advantage of your gears and parts?
Our advantage is the competitive and reasonable prices, fast delivery and high quality. Our eployees are responsible-oriented, friendly-oriented,and dilient-oriented. 
Our industrial parts products are featured by strict tolerance, smooth finish and long-life performance. 

Q3: what are our machining equipments?
Our machining equipments include plasticn injection machinies, CNC milling machines, CNC turning machines, stamping machines, hobbing machines, automatic lathe machines, tapping machines, grinding machines, cutting machines and so on. 

Q4: What shipping ways do you use?
Generally, we will use UPS DHL or FEDEX and sea shipping 

5: What materials can you process?
For plastic injection gears and parts, the materials are Nylon, PA66, NYLON with 30% glass fibre, ABS, PP,PC,PE,POM,PVC,PU,TPR,TPE,TPU,PA,PET,HDPE,PMMA etc.
For metal and machining gears and parts, the materials are brass, bronze, copper, stainless steel, steel, aluminum, titanium plastic etc. 

Q6: How long is the Delivery for Your gears and parts? 
Generally , it will take us 15 working days for injection or machining, and we will try to shorten our lead time.

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Application: Motor, Electric Cars, Machinery, Toy, Agricultural Machinery, Car
Hardness: Hardened Tooth Surface
Gear Position: External Gear
Manufacturing Method: Cut Gear
Toothed Portion Shape: Curved Gear
Material: Stainless Steel
US$ 10/Piece
1 Piece(Min.Order)

Request Sample



Customized Request

sun gear

Can sun gears be used in renewable energy systems?

Sun gears can indeed be used in renewable energy systems, particularly in applications that involve the conversion and transmission of mechanical power. Let’s explore how sun gears can be utilized in different types of renewable energy systems:

  • Wind Turbines:

In wind turbines, sun gears can be employed as part of the gearbox mechanism. The gearbox is responsible for increasing the rotational speed of the wind turbine’s rotor to generate electricity efficiently. Sun gears, along with other gears such as planet gears and ring gears, can be used to achieve the desired gear ratios and torque amplification. By leveraging sun gears, wind turbines can convert the relatively low rotational speed of the rotor into the higher rotational speed required by the generator, which produces electricity.

  • Solar Tracking Systems:

Sun gears can also play a role in solar tracking systems, which are used to maximize the energy generation of solar panels by orienting them towards the sun throughout the day. These systems often utilize gears to control the movement of the solar panels. Sun gears can be incorporated into the gear mechanism to enable precise tracking and adjustment of the solar panels’ position, ensuring optimal sunlight exposure and energy capture.

  • Hydroelectric Power Plants:

In hydroelectric power plants, sun gears can be employed in the turbine and generator systems. These systems use the force of flowing or falling water to drive turbines, which, in turn, generate electricity. Sun gears can be part of the turbine’s gearbox, enabling the efficient conversion of the low-speed rotation of the turbine into the high-speed rotation required by the generator. By utilizing sun gears, hydroelectric power plants can enhance the power generation capabilities of the turbines.

  • Wave and Tidal Energy Converters:

Wave and tidal energy converters harness the power of ocean waves and tides to generate electricity. Sun gears can be utilized in the transmission systems of these converters. They can help convert the slow, oscillating motion of the waves or tides into a higher rotational speed suitable for driving generators. By incorporating sun gears, these converters can optimize the energy extraction process and improve the efficiency of power generation.

  • Geothermal Power Plants:

In geothermal power plants, sun gears can be used in various components of the energy conversion process. Geothermal power plants extract heat from the Earth’s interior to generate electricity. Sun gears can be employed in systems such as turbines and generators, where they facilitate the conversion of thermal energy into mechanical and electrical energy. By utilizing sun gears, geothermal power plants can enhance the efficiency and performance of the energy conversion systems.

In summary, sun gears can find applications in renewable energy systems such as wind turbines, solar tracking systems, hydroelectric power plants, wave and tidal energy converters, and geothermal power plants. By leveraging the functionality of sun gears, these systems can optimize power generation, increase efficiency, and contribute to the sustainable utilization of renewable energy sources.

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 OEM Custom Precision Machine Wheel Transmission Drive Sun Ring Reduction Pinion Spur Gear worm and wheel gearChina OEM Custom Precision Machine Wheel Transmission Drive Sun Ring Reduction Pinion Spur Gear worm and wheel gear
editor by Dream 2024-05-07