PARKER DAEDAL 404XR PRECISION GROUND BALL SCREW CR4544 Xyz CR4500 Positioner Manually Crossed Roller Bearing
( Brand: Parker Daedal 404xr Precision Ground Ball Screw ), ( Manufacturer Part Number: CR4544 ), ( Model: CR4500 ), ( Part Type: Roller Bearing ), ( Country Of Manufacture: United States ), ( Stroke Length: 20mm )
Review PARKER DAEDAL 404XR PRECISION GROUND BALL SCREW Xyz Stage Manually Driven Crossed Roller Bearing Positioner
The **Parker Daedal 404XR Precision Ball Screw** paired with the **CR4544 XYZ Manually Crossed Roller Bearing Positioner (CR4500 series)** represents the pinnacle of high-precision motion control engineering, designed for applications where micro-level accuracy, repeatability, and durability are non-negotiable. This system combines the unmatched efficiency of Parker Daedal s recirculating ball screw technology with the exceptional stiffness and low-friction performance of its crossed roller bearing positioners, delivering a seamless solution for demanding positioning tasks in industries such as semiconductor manufacturing, medical device fabrication, aerospace calibration, and advanced metrology. The **404XR ball screw** is engineered with a recirculating ball nut assembly that minimizes backlash to near-zero levels, ensuring consistent and predictable motion even under high dynamic loads. Its precision-ground leadscrew and hardened, ground ball bearings are treated with advanced lubrication systems to resist wear, corrosion, and contamination, making it ideal for environments where cleanliness and reliability are critical. The screw s compact yet robust design accommodates a wide range of lead lengths, from sub-millimeter to several meters, while its sealed construction prevents ingress of debris, ensuring long-term operational integrity.
Complementing this screw is the **CR4544 XYZ manually crossed roller bearing positioner**, a marvel of mechanical precision that leverages Parker s proprietary crossed roller bearing technology to provide unparalleled stiffness and smooth motion in three orthogonal axes. Unlike traditional linear guides, which may suffer from wobble or misalignment under load, the crossed roller bearing design distributes forces evenly across multiple contact points, eliminating play and reducing friction to a fraction of conventional systems. This positioner is manually actuated, offering the flexibility of direct human control without sacrificing precision, making it perfect for applications where fine adjustments are required without the need for external power sources. The CR4500 series is constructed from high-grade materials, including hardened steel and precision-machined components, ensuring exceptional rigidity and resistance to deflection. Its modular design allows for easy integration into existing systems, while the absence of recirculating elements in the bearing assembly eliminates the risk of contamination or wear over time. Together, the **404XR ball screw and CR4544 positioner** form a synergistic motion control duo that excels in applications demanding sub-micron resolution, high repeatability, and the ability to withstand repeated cycles of precise positioning whether in automated inspection systems, custom CNC setups, or high-precision assembly platforms. This combination is not merely a tool for motion; it is a testament to Parker Daedal s commitment to pushing the boundaries of mechanical performance in industries where perfection is the only acceptable standard.
### **Parker Daedal 404XR Precision Ball Screw and CR4500 Crossed Roller Bearing Positioner: Pros and Cons**
#### **Overview**
The **Parker Daedal 404XR** is a high-precision ball screw drive designed for applications requiring smooth, repeatable motion with minimal backlash. The **CR4500** is a manually operated crossed roller bearing positioner, offering high stiffness, low friction, and precise angular positioning. Together, they form a robust system for linear and rotational motion control, commonly used in aerospace, medical equipment, robotics, and precision manufacturing.
---
### **Pros**
1. **Exceptional Precision and Repeatability**
- The **404XR ball screw** features a **recirculating ball nut** design, reducing friction and ensuring high positional accuracy. The **CR4500 crossed roller bearing** provides **sub-micron repeatability**, making it ideal for applications requiring fine adjustments.
- Both components are engineered for **minimal backlash**, which is critical in applications like CNC machining, optical alignment, and automated testing.
2. **High Stiffness and Load Capacity**
- The **crossed roller bearing** in the CR4500 distributes load evenly across multiple contact points, enhancing **rigidity** and reducing deflection under heavy loads.
- The **ball screw s preloaded design** prevents axial play, improving stability in dynamic applications.
3. **Low Friction and Energy Efficiency**
- The **recirculating ball nut** in the 404XR reduces friction compared to lead screws or threaded rods, leading to **lower power requirements** and **less heat generation**.
- The **crossed roller bearings** in the CR4500 offer **ultra-low friction**, allowing for smooth manual operation without excessive effort.
4. **Durability and Long Lifespan**
- Both components are built with **high-grade materials**, including hardened steel and precision-ground surfaces, ensuring **wear resistance** and extended service life.
- The **sealed design** of the ball screw protects against contamination, while the CR4500 s enclosed bearing arrangement minimizes dust and debris ingress.
5. **Versatility in Applications**
- The **404XR** is available in various lead lengths (e.g., 2mm, 4mm, 8mm) and can be customized for different stroke lengths, making it adaptable to diverse linear motion needs.
- The **CR4500** supports **manual, servo, or stepper motor integration**, allowing for both manual adjustments and automated control.
6. **Compatibility with Advanced Control Systems**
- The **ball screw s precision** makes it suitable for **closed-loop control systems**, where feedback (e.g., from encoders) ensures accurate positioning.
- The **CR4500 s smooth operation** pairs well with **servo motors** for high-speed, high-accuracy rotational positioning.
7. **Minimal Maintenance Requirements**
- Due to their **self-lubricating properties** and **sealed construction**, both components require **minimal lubrication and maintenance**, reducing downtime.
- The **crossed roller bearing s recirculating design** prevents wear from misalignment better than traditional bearings.
---
### **Cons**
1. **High Initial Cost**
- Parker Daedal components are **premium-priced** due to their **high-precision manufacturing** and **specialized materials**. The **404XR ball screw** and **CR4500 positioner** are not budget-friendly, making them less accessible for small-scale or cost-sensitive applications.
- Additional costs may arise from **customization** (e.g., mounting flanges, stroke adjustments) or **integration with control systems**.
2. **Complex Installation and Setup**
- Achieving **optimal performance** requires **precise alignment** of the ball screw and bearing assembly. Misalignment can lead to **increased friction, wear, or reduced accuracy**.
- The **CR4500 s manual operation** may require **training** for operators to handle smoothly without introducing errors, especially in high-precision tasks.
3. **Limited Availability of Spare Parts**
- As **specialty components**, finding **replacement parts or compatible accessories** (e.g., seals, lubricants) may be challenging, particularly for older models.
- **Aftermarket support** may not be as robust as for more common motion control systems.
4. **Sensitivity to Contamination**
- While the **404XR ball screw** is sealed, **prolonged exposure to dust, moisture, or chemicals** can degrade performance over time.
- The **CR4500 s bearing assembly** benefits from clean environments; **dust or debris** can accelerate wear if not properly managed.
5. **Not Ideal for High-Speed Continuous Operation**
- While the **404XR** is capable of **moderate speeds**, it is **not optimized for extreme high-speed applications** (e.g., > 10 m/s) where **lead screws or linear motors** might be more suitable.
- The **crossed roller bearing** excels in **precision positioning** but may not handle **rapid cyclic loading** as efficiently as some other bearing types.
6. **Potential for Lubrication Degradation Over Time**
- Even with **sealed designs**, **lubricants can degrade** with age, leading to **increased friction and wear**. Regular **relubrication checks** are recommended, though this adds to maintenance overhead.
7. **Integration Challenges with Non-Standard Systems**
- If the application requires **non-standard mounting or interfacing** (e.g., custom flanges, non-Parker control systems), **additional engineering work** may be needed, increasing complexity and cost.
---
### **Conclusion**
The **Parker Daedal 404XR ball screw paired with the CR4500 crossed roller bearing positioner** represents a **superior choice for applications demanding ultra-high precision, stiffness, and repeatability**. Its strengths lie in **minimal backlash, low friction, durability, and compatibility with advanced control systems**, making it ideal for **aerospace, medical devices, robotics, and precision manufacturing**.
However, the **high upfront cost, complexity of installation, and sensitivity to maintenance** make it **less suitable for budget-conscious or high-volume, low-precision applications**. Additionally, users must ensure **proper alignment, clean operating environments, and periodic maintenance** to sustain performance.
For applications where **cost is not a limiting factor and precision is paramount**, this system is **highly recommended**. In contrast, for **lower-cost or high-speed applications**, alternatives like **lead screws, linear motors, or standard roller bearings** may be more appropriate.
---
### **Final Recommendation**
**Buy the Parker Daedal 404XR and CR4500 if:**- Your application requires **sub-micron positioning accuracy** (e.g., CNC machining, optical alignment, medical instrumentation).
- You need **high stiffness, low friction, and minimal backlash** in both linear and rotational motion.
- You can **justify the higher cost** based on long-term reliability and reduced maintenance needs.
- Your environment is **clean and controlled**, minimizing contamination risks.
**Avoid or Consider Alternatives if:**- Your budget is **limited**, and cost-effective alternatives (e.g., lead screws, standard ball screws) can meet your precision needs.
- Your application involves **high-speed continuous operation** where other drive systems (e.g., linear motors) may perform better.
- You lack **expertise in precision alignment and maintenance**, as improper setup can degrade performance.
For most **high-end precision motion control applications**, this system is **worth the investment**. However, a **detailed cost-benefit analysis** and **feasibility study** should be conducted to ensure it aligns with your specific requirements.
Details:
Originally used to mount the stage a 404XR actuator. Crossed Roller Slides. The end of the drive Screw rests against movable top. Standard Features.
1 Max Travel Read. Way they are currently mounted and configured. Exacting manufacturing techniques, combined with demanding quality control standards, permit Parker Daedal to offer Precision stages of unsurpassed. Travel is limited on a couple of the stages because.
The linear positioner operates in a simple manner: bracket which supports the drive Screw is attached to slide base. Locking Screw to positively lock stage without affecting, position. Manual Driven Positioner. Item Specifics:: Parker CR4544 XYZ Stage.
The differential Screw is, used for applications requiring extremely fine resolution positioning. A position readout is required. Notes from the Manufacturer:: Crossed Roller Positioner Design Principles. The fine Screw is used for resolution positioning.
There are two extended springs pulling the slide top toward Screw so that will always be held firmly against end. Because it has the bottom spring assembly to keep. The result is a very smooth linear motion, accurately controlled by rotation of the drive mechanism. Stages are available in single or multi-axis configurations XY, XZ, and XYZ, all have built-in quality features including: Aluminum/steel construction.
The micrometer is used whenever. When turned counter clockwise, the Screw retracts and slide top follows because of spring pressure holding against end. Low friction linear adjustment with no backlash or side play. It is mounted to an aluminum angle bracket that was.
Stage from sliding down when mounted vertically. This is a lightly used Parker CR4544 XYZ Stage Positioner. When the Screw is turned clockwise, it advances and pushes slide top along linear axis. Selection can be made easily, based on required travel, load, and mounting surface requirements.
Crossed roller positioning stages are available in a straight stage/drive configuration as well side-drive. Three types of drive mechanisms are available: a fine Screw, micrometer, and differential Screw.
part #: cr4544 prices
- $99.99-$404.99
specifications linactuat:
- brand: Parker Daedal 404xr Precision Ground Ball Screw
- mpn: Cr4544
- model: Cr4500
- part type: Roller Bearing
- country of manufacture: United States
- stroke length: 20mm
general linactuat:
- condition: Used
- Industrial Automation Motion Controls > Rotary Linear Motion > Linear Actuators
shipping linactuat:
- class: Standard
- service: Standard
- transit: 2-6 Days
- type: Fixed
- cost: $24.50
returns linactuat:
- paid by: Buyer
- time: 30 Days
- method: Money back
- policy: Returns Accepted
offer linactuat:
- best offers: True
- availability: In Stock
- options: Ship-to-home
- started: March 5, 2026
- quantity: 1
- sold: 0
seller linactuat:
- city: Pueblo, Colorado
- rating: 100.0%
- # reviews: 2482
payments linactuat:
- other
- credit card: Discover
- wallet: Apple-pay
Parker Daedal 404xr Precision Ground Ball Screw CR4544 Is Similar To:
- 004959501 Parker Daedal Heavy Load Cross Rolling Linear Rail (42% similar) Parker Daedal heavy load cross rolling linear slide rail model CR4801, part CRW2-IKO, roller, long life, removed from equipment, 30-DAY warranty condition: used item: location: 9004D...(March 8th, 2018)
- 008-7674-d Parker Linear Stage Actuator (28.8% similar) ...(November 12th, 2017)
- 008-8748 Parker Daedal With Two Emerson Servo Motors (28.9% similar) See pictures. Parker Daedal with two Emerson DXM208C 5000 rpm servo motors attached to them...(May 27th, 2018)
- 081-0570-01 Parker Daedal Division 500000et (28% similar) This unit is equipped with a very heavy duty, zero backlash compound Ball nut that adjustable. It does show some handling scratches, but is very, very clean. This slide would be perfect as one of the axis in a heavy duty CBC router or laser system. I try to ensure that all business deals are fair, ...(January 12th, 2018)
- 081-1280 Parker Positioning Stage Travel Dimensions (19.8% similar) Need this item next day. Our cut-off time for shipping an item is 3:45PM ct. Messaging: through messages...(May 4th, 2018)
- 081-5820 S57-83-mo Parker Daedal Screw (23.9% similar) Our cut-off time for shipping an item is 3:45PM ct...(November 3rd, 2017)
- 081-8220 Parker Daedal 30 X (23% similar) One Parker Daedal 2 axis linear positioner, 30 x model with computer ZETA83-135-MD on each e-ac drives. Happy buying...(November 6th, 2017)
- 105002btepd3lc4m1e1 Parker Precision Linear Slide Table Optical Limit Sensors And Bonusitem (27.4% similar) Unfortunately they didn't come to me with the bellows coupling. Parker Ball bearing 5 slide table 2 travel this has all the bells and whistles for its class Precision level ACCURACY0. I am including the 9-PIN connector and female pins yes, extra for when you mess up if are like me. Motor mount for 1...(November 29th, 2018)
- 105021p-10 Parker Daedal Precision Linear (35.8% similar) ...(September 28th, 2017)
- 105021s10blh0 Parker Daedal Leadscrew Linear Position Actuator Table Stage Stroke (37.6% similar) Our cut-off time for shipping an item is 3:45PM ct. Need this item next day. Messaging: through messages. If you do not have an account no worries...(June 12th, 2018)
- 106004ctep-d1l2c4m1e1 Parker Daedal Precision Crossed Roller Slide Table (43.5% similar) Up for sale is a Parker Daedal Precision crossed roller slide table. The full part number is 106004CTEP-D1L2C4M1E1. Guaranteed not DOA. The table is 6 x6 and has 4 of travel...(December 26th, 2018)
