Product Description
KGG High Quality Planetary Roller Screws-CHRC Series
Load Capacity Life
The advantage of a planetary roller screw is the ability to provide higher dynamic and static load ratings than a ball screw. A threaded roller instead of a ball will allow the load to be released quickly through numerous contact lines, resulting in a higher resistance to impact. From Hertz’s law of pressure, we can conclude that a planetary roller screw can withstand 3 times the static load of a ball screw and 1 1/2 times the life of a ball screw.
Speed and Acceleration
Planetary Roller Screws can provide higher rotational speeds and higher acceleration, and the lead length of a Planetary Roller Screw can be smaller than that of a Ball Screw. Since the lead of a planetary roller screw is a function of the pitch, the lead can be less than 0.5mm or less. The lead of a planetary roller screw can be designed to be calculated as an integer or fractional number (e.g., 3.32mm per transfer) and will not require a reduction gear to match. The change in lead does not introduce any change in geometry to the screw shaft and nut.
In contrast, the lead of the ball screw is limited by the diameter of the ball, thus the lead will be standard.
Stiffness and Strength
The numerous contact lines of the planetary roller screw will substantially increase the stiffness and impact resistance.
Application:
CNC machine tools, robotics, aviation (aircraft/helicopter), aerospace (rocket/satellite), weaponry (tank/canon/missile/aircraft carrier/nuclear submarine).
Precision injection molding machines, mechanical presses, medical industry, measuring instruments, special machine tools, laser equipment, petroleum industry, chemical industry, optical instruments, metallurgical equipment, automotive industry, servo-electric cylinders, etc.
Technical Drawing
Specification List
| Type | D x P | N | d0 | d1 | d2 | C | Co | D1 | D2 | D5 | D7 | L1 | L1 | L2 | L3 | L4 | L5 | L6 | L7 | D8 | |
| mm | mm | mm | kN | kN | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | ||||
| CHRC/F/P | 39×5 | 5 | 39 | 39.35 | 38.54 | 0.84 | 129.2 | 245.2 | 80 | 116 | 11 | 98 | 90 | 100 | 82.7 | 28 | 6 | 30 | 18 | 18 | 45 |
| CHRC/F/P | 39×10 | 5 | 39 | 39.74 | 38.12 | 0.88 | 153.4 | 257.4 | 80 | 116 | 11 | 98 | 90 | 100 | 82.7 | 28 | 6 | 30 | 18 | 18 | 45 |
| CHRC/F/P | 39×15 | 5 | 39 | 39.92 | 37.49 | 0.89 | 168.8 | 251.1 | 80 | 116 | 11 | 98 | 90 | 100 | 82.7 | 28 | 6 | 30 | 18 | 18 | 45 |
| CHRC/F/P | 39×20 | 5 | 39 | 40.15 | 36.9 | 0.9 | 173.7 | 275.5 | 80 | 116 | 11 | 98 | 90 | 100 | 82.7 | 28 | 6 | 30 | 18 | 18 | 45 |
| CHRC/F/P | 39×25 | 5 | 39 | 40.5 | 36.8 | 0.9 | 175.3 | 261.7 | 80 | 116 | 11 | 98 | 90 | 100 | 82.7 | 28 | 6 | 30 | 18 | 18 | 45 |
| CHRC/F/P | 44×6 | 6 | 44 | 44.35 | 43.54 | 0.84 | 166 | 301.2 | 80 | 118 | 11 | 100 | 105 | 115 | 82.7 | 35 | 6 | 35 | 18 | 18 | 50 |
| CHRC/F/P | 44×12 | 6 | 44 | 44.65 | 43.03 | 0.88 | 175.3 | 310.5 | 80 | 118 | 11 | 100 | 105 | 115 | 82.7 | 35 | 6 | 35 | 18 | 18 | 50 |
| CHRC/F/P | 44×18 | 6 | 44 | 44.9 | 42.47 | 0.89 | 183.3 | 305.7 | 80 | 118 | 11 | 100 | 105 | 115 | 82.7 | 35 | 6 | 35 | 18 | 18 | 50 |
| CHRC/F/P | 44×24 | 6 | 44 | 45.12 | 41.88 | 0.9 | 190.2 | 306.8 | 80 | 118 | 11 | 100 | 105 | 115 | 82.7 | 35 | 6 | 35 | 18 | 18 | 50 |
| CHRC/F/P | 44×30 | 6 | 44 | 45.28 | 41.23 | 0.9 | 175.3 | 302.4 | 80 | 118 | 11 | 100 | 105 | 115 | 82.7 | 35 | 6 | 35 | 18 | 18 | 50 |
| CHRC/F/P | 48×5 | 5 | 48 | 48.35 | 47.54 | 0.82 | 198 | 410.8 | 100 | 150 | 13.5 | 127 | 115 | 127 | 103 | 45 | 8 | 37 | 20 | 20 | 55 |
| CHRC/F/P | 48×10 | 5 | 48 | 48.67 | 47.05 | 0.87 | 215.6 | 432.7 | 100 | 150 | 13.5 | 127 | 115 | 127 | 103 | 45 | 8 | 37 | 20 | 20 | 55 |
| CHRC/F/P | 48×15 | 5 | 48 | 48.99 | 46.53 | 0.88 | 225.3 | 435.7 | 100 | 150 | 13.5 | 127 | 115 | 127 | 103 | 45 | 8 | 37 | 20 | 20 | 55 |
| CHRC/F/P | 48×20 | 5 | 48 | 49.21 | 45.97 | 0.89 | 227.3 | 473.4 | 100 | 150 | 13.5 | 127 | 115 | 127 | 103 | 45 | 8 | 37 | 20 | 20 | 55 |
| CHRC/F/P | 48×25 | 5 | 48 | 49.43 | 45.38 | 0.9 | 230.5 | 468.4 | 100 | 150 | 13.5 | 127 | 115 | 127 | 103 | 45 | 8 | 37 | 20 | 20 | 55 |
| CHRC/F/P | 48×30 | 5 | 48 | 49.62 | 44.75 | 0.89 | 220.7 | 458.5 | 100 | 150 | 13.5 | 127 | 115 | 127 | 103 | 45 | 8 | 37 | 20 | 20 | 55 |
| CHRC/F/P | 48×6 | 6 | 48 | 48.35 | 47.54 | 0.84 | 190.1 | 401.7 | 86 | 122 | 11 | 104 | 115 | 127 | 88.7 | 45 | 6 | 37 | 20 | 20 | 55 |
| CHRC/F/P | 48×12 | 6 | 48 | 48.66 | 47.04 | 0.88 | 207.6 | 427.9 | 86 | 122 | 11 | 104 | 115 | 127 | 88.7 | 45 | 6 | 37 | 20 | 20 | 55 |
| CHRC/F/P | 48×15 | 6 | 48 | 48.79 | 46.76 | 0.88 | 214.2 | 430.1 | 86 | 122 | 11 | 104 | 115 | 127 | 88.7 | 45 | 6 | 37 | 20 | 20 | 55 |
| CHRC/F/P | 48×18 | 6 | 48 | 48.92 | 46.49 | 0.89 | 215.4 | 428.3 | 86 | 122 | 11 | 104 | 115 | 127 | 88.7 | 45 | 6 | 37 | 20 | 20 | 55 |
| CHRC/F/P | 48×20 | 6 | 48 | 49 | 46.3 | 0.89 | 216.9 | 485.7 | 86 | 122 | 11 | 104 | 115 | 127 | 88.7 | 45 | 6 | 37 | 20 | 20 | 55 |
| CHRC/F/P | 48×24 | 6 | 48 | 49.15 | 45.91 | 0.9 | 230.4 | 435 | 86 | 122 | 11 | 104 | 115 | 127 | 88.7 | 45 | 6 | 37 | 20 | 20 | 55 |
| CHRC/F/P | 56×6 | 6 | 56 | 56.36 | 55.3 | 0.8 | 213.1 | 420.6 | 100 | 150 | 13.5 | 127 | 125 | 139 | 105 | 50 | 8 | 37 | 22 | 20 | 60 |
| CHRC/F/P | 56×9 | 6 | 56 | 56.6 | 55 | 0.83 | 257 | 449.2 | 100 | 150 | 13.5 | 127 | 125 | 139 | 105 | 50 | 8 | 37 | 22 | 20 | 60 |
| CHRC/F/P | 56×12 | 6 | 56 | 56.8 | 54.7 | 0.87 | 242 | 460.6 | 100 | 150 | 13.5 | 127 | 125 | 139 | 105 | 50 | 8 | 37 | 22 | 20 | 60 |
| CHRC/F/P | 56×15 | 6 | 56 | 57 | 54.4 | 0.87 | 258 | 505.8 | 100 | 150 | 13.5 | 127 | 125 | 139 | 105 | 50 | 8 | 37 | 22 | 20 | 60 |
| CHRC/F/P | 56×18 | 6 | 56 | 57.2 | 54.1 | 0.87 | 268 | 514.6 | 100 | 150 | 13.5 | 127 | 125 | 139 | 105 | 50 | 8 | 37 | 22 | 20 | 60 |
| CHRC/F/P | 56×24 | 6 | 56 | 57.5 | 53.8 | 0.88 | 296 | 514.6 | 100 | 150 | 13.5 | 127 | 125 | 139 | 105 | 50 | 8 | 37 | 22 | 20 | 60 |
FACTORY DETAILED PROCESSING PHOTOS
FAQ
1. Why choose CHINAMFG China?
Over the past 17 years, CHINAMFG has always insisted that “products and services” start from Japanese industry standards,taking ZheJiang standards as the bottom line, actively invest in the development of new transmission components and self-experiment and test. With the service tenet of “exceeding customer expectations”, establish a “trusted” partnership.
2. What is your main products ?
We are a leading manufacturer and distributor of linear motion components in China. Especially miniature size of Ball Screws and Linear Actuators and linear motion guideways. Our brand “KGG” stands for ” Know-how,” ” Great Quality,” and ” Good value” and our factory is located in the most advanced city in China: ZheJiang with the best equipment and sophisticated technology, completely strict quality control system. Our aim is to supply world leader class linear motion components but with most reasonable price in the world.
3. How to Custom-made (OEM/ODM)?
If you have a product drawing or a sample, please send to us, and we can custom-made the as your required. We will also provide our professional advices of the products to make the design to be more realized & maximize the performance.
4. When can I get the quotation?
We usually quote within 24 hours after we get your inquiry. If you are very urgent to get the price,please call us or tell us in your email so that we will regard your inquiry priority.
5. How can I get a sample to check the quality?
After confirmation of our quoted price, you can place the sample order. The sample will be started after you CHINAMFG back our detailed technical file.
6. What’s your payment terms?
Our payment terms is 30% deposit,balance 70% before shipment /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Precision: | C0,1,2,3,5,7,10 |
|---|---|
| Screw Diameter: | 48.35mm |
| Flange: | With Flange |
| Nut Number: | Single |
| Rows Number: | 3-Row |
| Nut Type: | End Cap Type / Elbow Type / Circulator Type |
| Customization: |
Available
|
|
|---|
How do lead screws contribute to the efficiency and accuracy of linear motion systems?
Lead screws play a crucial role in enhancing the efficiency and accuracy of linear motion systems. Here’s how they contribute to these aspects:
Efficiency:
Lead screws can contribute to the efficiency of linear motion systems in the following ways:
- Mechanical Efficiency: Lead screws can achieve high mechanical efficiency in converting rotary motion into linear motion. The efficiency depends on factors such as the thread design, lubrication, and preload. When properly designed and lubricated, lead screws can operate with minimal friction and energy loss, ensuring efficient power transmission. This efficiency allows for effective utilization of the input power and reduces energy consumption.
- Self-Locking Capability: Lead screws have a self-locking characteristic, which means they can hold their position without the need for additional locking mechanisms. The friction between the mating threads helps prevent back-driving and maintains the position of the load. This self-locking property eliminates the need for continuous power input to hold the position, improving overall efficiency.
- No Energy Consumption at Rest: When the lead screw is not in motion, it does not consume any energy. This is advantageous in applications where the load needs to be held in position for extended periods. The self-locking feature of lead screws ensures that the load remains stationary without energy input, contributing to energy efficiency.
Accuracy:
Lead screws contribute to the accuracy of linear motion systems in the following ways:
- Precise Positioning: Lead screws allow for precise positioning of components or loads. The thread pitch and design, combined with the rotational input, enable accurate and controlled linear movement. This precision is crucial in applications that require accurate alignment, spacing, or adjustment of components.
- Repeatability: Lead screws provide excellent repeatability in linear motion. Once a position is established, lead screws can reliably return to the same position repeatedly. This repeatability is critical in applications where consistent and repeatable motion is required, such as in CNC machines or automated systems.
- Low Backlash: Backlash refers to the axial movement or play between the screw and nut when changing direction. Lead screws can be designed to minimize backlash, resulting in more accurate positioning and reduced lost motion. Low backlash is particularly important in applications that demand precise positioning, such as machining operations or optical systems.
- Elimination of Drift: Lead screws help eliminate drift or movement over time. Once a position is set, the self-locking property of lead screws ensures that the load remains stationary without any gradual drift or positional changes. This stability is beneficial in applications where maintaining a fixed position is critical, such as in inspection systems or medical equipment.
Overall, lead screws provide efficient power transmission, self-locking capability, precise positioning, repeatability, and low backlash, all of which contribute to the efficiency and accuracy of linear motion systems. These characteristics make lead screws suitable for a wide range of applications where controlled and reliable linear motion is required.
Can you explain the impact of lead screws on the overall durability of mechanical systems?
Lead screws have a significant impact on the overall durability of mechanical systems. As essential components in many machines and mechanisms, lead screws play a crucial role in providing precise linear motion and transferring loads. Their design, quality, and maintenance directly influence the durability and reliability of the systems they are incorporated into. Here are some key factors highlighting the impact of lead screws on overall durability:
- Load-Carrying Capacity: Lead screws are responsible for transmitting axial loads between the rotating screw and the nut. The design and material selection of the lead screw determine its load-carrying capacity. Inadequate design or material choice can lead to premature wear, deformation, or failure under heavy loads, compromising the overall durability of the mechanical system.
- Backlash and Precision: Backlash refers to the play or clearance between the screw and nut in a lead screw system. Excessive backlash can result in reduced precision, inaccuracies in positioning, and decreased overall performance. Lead screws with low backlash, such as ball screws, are often preferred in applications that require high precision and repeatability. Minimizing backlash through proper design and maintenance enhances the durability and performance of the system.
- Wear and Friction: Lead screws are subject to wear and friction during operation. Continuous contact between the screw and nut can result in surface damage and increased friction, leading to accelerated wear. Adequate lubrication, regular maintenance, and proper material selection can help minimize wear and friction, extending the lifespan of the lead screw and improving the durability of the mechanical system.
- Mechanical Efficiency: The efficiency of a lead screw system influences its durability. Inefficient systems generate more heat due to friction, which can cause thermal expansion, accelerated wear, and reduced lifespan. By selecting lead screw designs with high mechanical efficiency, such as ball screws or optimized thread profiles, the overall durability of the mechanical system can be improved.
- Environmental Considerations: Lead screws operating in different environments face varying challenges that can impact their durability. Factors such as temperature extremes, exposure to moisture, chemicals, or abrasive contaminants can accelerate wear, corrosion, or degradation of the lead screw. Proper material selection, protective coatings, sealing, and regular maintenance practices can mitigate the environmental impact and enhance the overall durability of the mechanical system.
- Maintenance and Service Life: Adequate maintenance practices, including cleaning, lubrication, inspection, and adjustment, are essential for preserving the durability of lead screws and the mechanical systems they are part of. Regular maintenance helps identify and address issues early, preventing further damage and extending the service life of the system.
In conclusion, lead screws have a significant impact on the overall durability of mechanical systems. Their load-carrying capacity, precision, wear characteristics, mechanical efficiency, environmental resistance, and proper maintenance practices all contribute to the durability, reliability, and performance of the system. By considering these factors and selecting suitable lead screw designs, materials, and maintenance strategies, the overall durability of mechanical systems can be significantly improved.
Are there specific advantages to using lead screws over other linear motion systems?
Yes, there are specific advantages to using lead screws over other linear motion systems. Here are some of the advantages associated with lead screws:
- Precision and Accuracy: Lead screws offer precise and accurate linear motion control. The thread design and pitch allow for precise positioning and movement of components, making them suitable for applications that require high levels of accuracy and repeatability.
- Cost-Effectiveness: Lead screws are often more cost-effective compared to other linear motion systems, such as ball screws or linear actuators. They provide a reliable and efficient solution for converting rotary motion into linear motion at a relatively lower cost, making them a popular choice for many applications.
- High Load Capacity: Lead screws are capable of handling significant axial loads and torque. The thread engagement between the screw and nut distributes the load over a larger surface area, allowing lead screws to support and transfer substantial loads. This makes them suitable for applications that require heavy-duty performance and load-carrying capabilities.
- Self-Locking: Lead screws have a self-locking characteristic, which means they can hold their position without the need for additional locking mechanisms. The friction between the mating threads helps prevent back-driving and maintains the position of the load, providing stability and safety in applications where holding the position is critical.
- Simple Design and Installation: Lead screws have a relatively simple design, consisting of a screw and a nut. This simplicity makes them easier to install and maintain compared to more complex linear motion systems. Additionally, the straightforward design allows for customization and modification to meet specific application requirements.
- Efficiency: Lead screws can achieve high mechanical efficiency in converting rotary motion to linear motion. The efficiency depends on factors such as the thread design, lubrication, and preload. With proper design and lubrication, lead screws can operate with minimal friction and energy loss, ensuring efficient power transmission.
- Versatility: Lead screws can be used in a wide range of applications across various industries. They are suitable for applications that require linear motion, precise positioning, or adjustment of components. Lead screws find applications in industries such as manufacturing, automation, robotics, aerospace, medical, and more.
These advantages make lead screws a popular choice in many applications where precise linear motion control, cost-effectiveness, high load capacity, and simplicity are essential. However, it’s important to consider specific application requirements and factors such as speed, accuracy, duty cycle, and environmental conditions when selecting the appropriate linear motion system.
editor by CX 2024-03-12