Product Description

Product Description

Straight Spur Precision Transmission Metal Steel Bronze Planetary Bevel CHINAMFG Wheel 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
Shipping
 

 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.

 QUALITY CONTROL PROCESS:
 
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)

Service:

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.

FAQ

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
Samples:
US$ 10/Piece
1 Piece(Min.Order)

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Request Sample

Customization:
Available

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Customized Request

crown gear

Can crown gears be used in precision machinery and equipment?

Yes, crown gears can be used in precision machinery and equipment, and they offer several advantages in such applications. Let’s explore why crown gears are suitable for precision machinery:

  • Smooth and Quiet Operation:

Crown gears are known for their smooth and quiet operation. The curved tooth profile of crown gears allows for gradual tooth engagement, reducing impact forces and minimizing noise generation. This smooth and quiet operation is crucial for precision machinery, where noise reduction and smooth motion are highly desirable.

  • Precise Positioning:

Due to their symmetrical tooth profile and bidirectional capability, crown gears enable precise positioning in precision machinery. The symmetrical design ensures consistent tooth engagement and meshing, resulting in accurate and repeatable positioning. This precise positioning capability is vital for applications that require high accuracy and repeatability, such as CNC machines, robotics, and optical equipment.

  • High Load Capacity:

Crown gears have a larger contact area compared to other gear types, which enhances their load-carrying capacity. This characteristic makes crown gears suitable for precision machinery that may experience high loads or torque requirements. The ability to handle higher loads ensures the gear system’s durability and reliability, even under demanding operating conditions.

  • Backlash Elimination:

Backlash, which is the clearance or play between the teeth of meshing gears, can negatively affect the precision of machinery. Crown gears are capable of minimizing or eliminating backlash due to their tooth orientation and engagement properties. This feature helps maintain accurate motion and positioning in precision equipment, contributing to improved overall performance.

  • High Gear Ratios:

Crown gears can achieve high gear ratios, making them suitable for precision machinery that requires precise speed reduction or torque multiplication. The larger diameter of crown gears allows for a greater number of teeth engagement, enabling the gear system to achieve higher gear ratios without compromising performance.

In summary, crown gears can indeed be used in precision machinery and equipment. Their smooth and quiet operation, precise positioning capability, high load capacity, backlash elimination, and ability to achieve high gear ratios make them well-suited for applications that demand precision, accuracy, and reliable performance.

crown gear

What are the challenges in designing and manufacturing crown gears?

The design and manufacturing of crown gears come with certain challenges that engineers and manufacturers need to address. Let’s explore the challenges involved in designing and manufacturing crown gears:

  • Complex Tooth Geometry:

Crown gears have a complex tooth geometry compared to other gear types. The curved shape of the teeth requires precise calculations and design considerations to ensure proper meshing and optimal performance. Designing and modeling these intricate tooth profiles can be challenging, requiring advanced software tools and expertise.

  • Manufacturing Tolerances:

Manufacturing crown gears with tight tolerances is crucial to achieve smooth and accurate meshing with other gears. The curved tooth profile and perpendicular orientation require precise machining or gear cutting processes. Maintaining the necessary tolerances throughout the manufacturing process can be challenging and may require specialized equipment or techniques.

  • Noise and Vibration:

Due to the complex tooth geometry and meshing characteristics, crown gears can generate noise and vibration during operation. Ensuring quiet and vibration-free performance is essential, especially in applications where noise reduction is critical. Designing and manufacturing crown gears with appropriate tooth profiles, surface finishes, and gear materials can help mitigate noise and vibration issues.

  • Stress Concentrations:

Crown gears are susceptible to stress concentrations at the tooth root and fillet areas. The high contact stresses occurring during meshing can lead to premature tooth failure or wear. Designing proper fillet radii, optimizing tooth profiles, and selecting suitable materials and heat treatments are important considerations to minimize stress concentrations and enhance gear strength and durability.

  • Heat Treatment and Surface Hardening:

Achieving the desired surface hardness and wear resistance of crown gears can be challenging. Heat treatment processes, such as carburizing or induction hardening, need to be carefully controlled to ensure uniform hardness distribution and avoid distortion. Balancing the gear’s core toughness with the surface hardness is critical to maintain gear integrity and performance.

  • Lubrication and Maintenance:

Crown gears require proper lubrication to reduce friction, wear, and heat generation during operation. Designing gear systems with adequate lubrication mechanisms, such as oil baths or forced lubrication, is crucial. Additionally, considering maintenance requirements, such as accessibility for lubrication and gear inspection, is important to ensure the long-term performance and reliability of crown gears.

In summary, designing and manufacturing crown gears present challenges related to complex tooth geometry, manufacturing tolerances, noise and vibration, stress concentrations, heat treatment, surface hardening, lubrication, and maintenance. Overcoming these challenges requires careful design considerations, precise manufacturing processes, and suitable material selection to ensure the optimal performance, durability, and reliability of crown gears in gear systems.

crown gear

Can you explain the unique design and shape of crown gears?

The design and shape of crown gears are indeed unique and distinguishable from other types of gears. Let’s delve into the characteristics that define the unique design and shape of crown gears:

  • Tooth Orientation:

One of the key features of crown gears is their tooth orientation. Unlike other gears such as spur gears or bevel gears, where the teeth are parallel or at an angle to the gear’s axis, crown gears have teeth perpendicular to the gear’s face. This perpendicular tooth orientation allows for specific functionalities in mechanical systems.

  • Teeth Shape:

The teeth of a crown gear are shaped like segments of a cylinder. They have a curved profile that matches the circumference of the gear. This unique tooth shape ensures smooth engagement and meshing with other gears, facilitating reliable torque transmission and rotational motion transfer.

  • Gear Face:

Crown gears have a flat gear face where the teeth are positioned. The gear face is perpendicular to the gear’s axis and provides a stable surface for the meshing of other gears. The flat gear face allows for effective contact and force distribution when the crown gear engages with other gears in a mechanical system.

  • Meshing with Other Gears:

The design of crown gears enables them to mesh with other gears in a unique manner. Crown gears can mesh with gears that have parallel axes or bevel gears with intersecting axes. The perpendicular tooth orientation and the curved tooth shape facilitate smooth and efficient meshing, allowing the transfer of torque and rotational motion between different gear types.

  • Application-Specific Modifications:

While the basic design and shape of crown gears are consistent, they can be modified or customized for specific applications. This may include alterations in the tooth profile, tooth size, or gear dimensions to suit the requirements of the machinery or system in which they are used.

In summary, crown gears possess a unique design and shape characterized by perpendicular tooth orientation, curved tooth profile, a flat gear face, and compatibility with different gear types. These features contribute to the effective engagement, smooth meshing, and reliable transmission of torque and motion in mechanical systems.

China wholesaler Straight Spur Precision Transmission Metal Steel Bronze Planetary Bevel CZPT Wheel Gear spurs gearChina wholesaler Straight Spur Precision Transmission Metal Steel Bronze Planetary Bevel CZPT Wheel Gear spurs gear
editor by CX 2024-03-26