Product Description

Product Description

 

Manufacturer HangZhou CHINAMFG Precision Machinery Co., Ltd.
Item Name CNC part for production line
Machining Equipment CNC Machining Center, CNC Lathes, Grinding Machines, Milling Machines, Lathes, Wire-cuts machines, Laser Cuts machines, CNC Shearing Machines, CNC Bending Machines, etc.
Processing Lathing, Turning, Milling, Drilling, Grinding,Wire EDM, Welding, Casting, Forging, Assembling, etc
Tolerance +/-0.005mm
Material  1). Aluminum: AL 6061-T6, 6063, 7075-T etc
2). Stainless steel: 303,304,316L, 17-4(SUS630) etc
3). Steel: 4140, Q235, Q345B,20#,45# etc.
4). Titanium: TA1,TA2/GR2, TA4/GR5, TC4, TC18 etc
5). Brass: C36000 (HPb62), C37700 (HPb59), C26800 (H68), C22000(H90) etc
6). Copper, bronze, Magnesium alloy, Delrin, POM,Plastic, Acrylic,ABS,PVC, Nylon,PC,Resin,etc.
7).If you require any other materials, please contact us to discuss
Surface Treatment Blacking, Polishing, Anodizing, Chrome plating, Zinc plating, Nickel plating, Chrome plating, Ion nitriding, Titanium nitriding, Thermal treatment, Electroplating, Oxidation,etc.
Product’s Design Customized as customers’drawings and samples.
Inspection tooling tool microscope, digimatic micrometer, inside micrometer, dialgage, electronic digital display caliper, automatic height gauge, precision level 2 detector, 00 levels of marble platform, ring gauge, etc.
QC System 100% inspection according to the MIL-STD-105E, ANSI ASQC Z1.4, ABC-STD-105, BS6001, ISO 2859, DIN 40080 before shipment.
Application Metal Recycling Machine, Metal Cutting Machine, Metal Straightening Machinery, Metal Spinning Machinery, Metal Processing Machinery Parts, Metal forging Machinery, Metal Engraving Machinery, Metal Drawing Machinery, Metal Coating Machinery, Metal Casting Machinery, Automation Equipment
Quality Certificate ISO9001:2008 Certified
Cooperative partners BOSCH, SCHAEFFLER, COMAU, ruhlamat, SCHOTT, etc.
Terms of payment T/T, L/C, Western Union,Paypal
MOQ 1-10pcs just for samples
Customer Example  Schaeffler (China) Co., Ltd.
Bosch Automotive Products(HangZhou) Co., Ltd.
Comau (HangZhou) Automation Co., Ltd.
etc.

Package:

FAQ:
1.How long and how can I get quotation from your company?
We will reply you in 2 hours if getting detailed information during working days.
In order to quote you as soon as possible, please provide us the following information together with your inquiry.
1). Detailed drawings (CAD/PDF/DWG/IGS/STEP/JPG)
2). Materials required
3). Surface treatment
4). Quantity (per order/per month/annual)
5). Any special demands or requirements, such as packing, labels,delivery,etc.
2.Can I get samples for testing?
We can offer free samples for small parts, but for big and high-value products, samples will be charged.
3.How about the payment terms?
For new customers, we prefer to use T/T in advance. We can accept L/C, D/P for old customers.
4.If I need urgent delivery, can you help?
Of course! Customer first is our company philosophy. You need to tell us the delivery time when placing the order, and we will do our best to adjust the production schedule.
5.How about the transportation?
You can choose any mode of transportation you need, sea delivery, air delivery or express delivery.
6.How about the quality guarantee?
We will make 100% inspection before packing and delivery and make sure the products 100% meet your requirements . If there is any problems during using, please tell us anytime, we will reply you in time
7.Can we CHINAMFG NDA?
Sure. We never divulge any customer’s information to anyone else.

 

Application: Fastener, Auto and Motorcycle Accessory, Hardware Tool, Machinery Accessory
Standard: GB, EN, API650, China GB Code, JIS Code, TEMA, ASME
Surface Treatment: Polishing
Production Type: Batch Production
Machining Method: CNC Milling
Material: Nylon, Steel, Plastic, Brass, Alloy, Copper, Aluminum, Iron
Samples:
US$ 100/Piece
1 Piece(Min.Order)

|
Request Sample

Customization:
Available

|

Customized Request

plastic gear rack

How do rack and pinion systems handle different gear ratios?

Rack and pinion systems can accommodate different gear ratios by adjusting the size and number of teeth on the gears. The gear ratio determines the relationship between the rotational motion of the pinion gear and the linear motion of the rack. Here’s a detailed explanation of how rack and pinion systems handle different gear ratios:

In a rack and pinion system, the pinion gear is a small gear with teeth that meshes with the rack, which is a long, straight bar with teeth along its length. As the pinion gear rotates, it translates rotational motion into linear motion along the rack. The gear ratio is defined as the ratio of the number of teeth on the pinion gear to the number of teeth on the rack. It determines how much linear motion the rack will produce for each revolution of the pinion gear.

To handle different gear ratios, the following approaches can be taken:

  • Varying the Number of Teeth: By changing the number of teeth on the pinion gear and the rack, different gear ratios can be achieved. Increasing the number of teeth on the pinion gear relative to the rack will result in a higher gear ratio, providing more linear motion per revolution of the pinion gear. Conversely, reducing the number of teeth on the pinion gear relative to the rack will yield a lower gear ratio, producing less linear motion per revolution of the pinion gear.
  • Modifying the Module and Pitch: The module and pitch of the gear teeth can also be adjusted to accommodate different gear ratios. The module refers to the size of the teeth, while the pitch determines the spacing between the teeth. Changing the module and pitch can alter the gear ratio without significantly affecting the overall dimensions of the rack and pinion system. This approach allows for more flexibility in achieving specific gear ratios while maintaining compatibility with existing system components.
  • Using Gear Reduction or Multi-Stage Systems: In certain applications where a wide range of gear ratios is required, gear reduction or multi-stage systems can be employed. Gear reduction involves incorporating additional gears between the pinion and the rack to achieve the desired gear ratio. Each additional gear stage introduces its own gear ratio, allowing for more precise control over the system’s overall gear ratio. This approach is commonly used in applications that require high precision or a wide range of motion control options.

The selection of a specific gear ratio depends on the application requirements, such as the desired linear speed, torque, or positional accuracy. The gear ratio determines the system’s speed and force transmission characteristics, as well as its ability to handle different loads. It is important to note that changing the gear ratio can affect other system parameters, such as backlash, efficiency, and system dynamics. Therefore, careful consideration and analysis of the application’s needs and trade-offs are necessary when selecting and adjusting the gear ratio in a rack and pinion system.

plastic gear rack

How do rack and pinion systems handle variations in temperature and humidity?

Rack and pinion systems are designed to handle variations in temperature and humidity, ensuring their proper functioning and longevity in diverse environmental conditions. Here’s a detailed explanation:

Temperature Variations:

Rack and pinion systems are typically constructed using materials that can withstand a wide range of temperatures. Some common materials used for rack and pinion components include steel, stainless steel, aluminum, and various engineering plastics. These materials are chosen for their thermal stability and resistance to expansion or contraction due to temperature changes.

When exposed to temperature variations, rack and pinion systems can experience dimensional changes. However, the materials used are selected to minimize the effects of thermal expansion or contraction. Manufacturers consider the coefficient of thermal expansion of the materials and design the system with appropriate tolerances to accommodate temperature-related dimensional changes. This helps maintain the system’s accuracy and functionality over a range of operating temperatures.

In extreme temperature conditions, lubrication becomes an important consideration. High temperatures can cause lubricants to degrade, leading to increased friction and wear. To address this, specialized lubricants that can withstand elevated temperatures are used in rack and pinion systems operating in high-temperature environments. Additionally, regular maintenance and lubrication checks are recommended to ensure optimal performance and to mitigate any adverse effects of temperature variations.

Humidity and Moisture:

Humidity and moisture can affect the performance and durability of rack and pinion systems, particularly if the system is exposed to excessive moisture or operates in highly humid environments. Here are some measures taken to address these challenges:

1. Material Selection: The materials used in rack and pinion systems are often chosen for their resistance to corrosion and moisture absorption. Stainless steel, for example, is commonly used due to its excellent corrosion resistance. Similarly, certain types of engineering plastics are less susceptible to moisture absorption, making them suitable for humid environments.

2. Protective Coatings: Applying protective coatings on rack and pinion components can help enhance their resistance to moisture and corrosion. Coatings such as zinc plating, chrome plating, or specialized corrosion-resistant coatings provide an additional barrier against moisture penetration and prolong the system’s lifespan.

3. Sealing and Gasketing: Rack and pinion systems can be designed with sealing mechanisms or gaskets to prevent moisture ingress. Seals and gaskets are placed at critical points, such as the gear meshing area or the housing joints, to create a barrier against moisture and contaminants. These seals help maintain the integrity of the system, reduce the risk of corrosion, and ensure consistent performance even in humid conditions.

4. Regular Maintenance: Regular maintenance practices, including cleaning, inspection, and lubrication, are essential for rack and pinion systems exposed to humidity. Cleaning the system to remove any accumulated dirt or moisture, inspecting for signs of corrosion or wear, and applying appropriate lubrication can help mitigate the effects of moisture and ensure the system’s optimal performance and longevity.

By incorporating suitable materials, protective coatings, sealing mechanisms, and maintenance practices, rack and pinion systems can effectively handle variations in temperature and humidity. These measures help maintain the system’s accuracy, reliability, and durability, even in challenging environmental conditions.

plastic gear rack

How does a rack and pinion compare to other methods of motion conversion?

When comparing a rack and pinion system to other methods of motion conversion, several factors come into play. Here’s a detailed explanation of how a rack and pinion system compares to other common methods:

  • Efficiency: Rack and pinion systems are known for their high efficiency in converting rotational motion into linear motion. The direct contact between the rack and pinion teeth ensures a positive transfer of power with minimal energy losses. In comparison, other methods like belt and pulley systems or chain drives may experience greater friction and energy losses due to the sliding or bending of the flexible elements involved.
  • Precision: Rack and pinion systems offer good precision and accuracy, especially when properly designed and manufactured. The teeth engagement provides a positive and repeatable motion transfer, allowing for precise positioning and control. However, some other methods like lead screws or ball screws may offer even higher precision due to their thread-based mechanism, which reduces backlash and provides finer resolution.
  • Speed and Velocity: Rack and pinion systems can achieve high speeds and velocities, particularly in applications where the pinion is driven by a powerful motor. The direct engagement of the teeth allows for rapid motion and response. However, methods like belt and pulley systems or gear trains can also achieve high speeds, depending on the design and the mechanical advantage provided by the system.
  • Load Capacity: Rack and pinion systems can handle significant loads, especially when designed with sturdy materials and appropriate tooth profiles. The linear contact between the rack and pinion teeth distributes the load over a larger area, allowing for higher load-carrying capacity. However, methods like hydraulic or pneumatic systems can offer even higher load capacities, making them more suitable for heavy-duty applications.
  • Compactness: Rack and pinion systems are generally compact and space-efficient. The linear motion is achieved in a relatively small area, making them suitable for applications where space is limited. Other methods like lead screws or hydraulic systems may require more space due to their elongated or bulky nature.
  • Noise and Vibration: Rack and pinion systems can generate some noise and vibration, particularly at high speeds or when there is backlash present. However, advancements in design and manufacturing techniques have led to quieter rack and pinion systems. Other methods like belt and pulley systems or gear trains may also generate noise and vibration, depending on the specific implementation and operating conditions.

It’s important to note that the suitability of a motion conversion method depends on the specific application requirements, such as load capacity, precision, speed, available space, and cost considerations. Each method has its strengths and limitations, and the choice should be made based on a thorough evaluation of these factors in relation to the application’s needs.

China Hot selling Custom Medical Equipment High Precision Rack and Pinion for CNC Parts worm gear motorChina Hot selling Custom Medical Equipment High Precision Rack and Pinion for CNC Parts worm gear motor
editor by CX 2023-11-03