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  3. PARKER 004977501

PARKER 004977501 Linear Positioning CR4302M

004977501 Parker Cr4302m Linear Positioning Stage -

( Brand: Parker ), ( Manufacturer Part Number: 004977501 ), ( Model: CR4302M ), ( Type: Linear Ball Bearing ), ( Unit Type: Unit ), ( Configuration: Single Axis )

Review PARKER Linear Positioning Stage

The **Parker Hannifin CR4302M Linear Positioning Actuator** (part number **004977501**) is a high-performance, precision-engineered linear motion system designed for demanding industrial, automation, and robotic applications where reliability, repeatability, and compact integration are critical. This robust actuator combines Parker s renowned engineering expertise with advanced mechanical and hydraulic principles to deliver smooth, controlled linear motion with exceptional force output and positional accuracy. Built with a **double-acting, rod-end design**, the CR4302M leverages Parker s proprietary **CR Series** technology, featuring a **hydraulic cylinder with a built-in linear encoder** for real-time position feedback, eliminating the need for external sensors and reducing system complexity. The actuator s **aluminum-alloy housing** ensures a lightweight yet sturdy construction, optimizing energy efficiency while maintaining structural integrity under heavy loads and dynamic cycling. Its **sealed, maintenance-free design** incorporates Parker s **Hydra-Lok** rod seals and **wipe seals**, providing superior protection against contamination, abrasion, and fluid leakage ideal for harsh environments such as manufacturing, material handling, or aerospace applications where uptime is non-negotiable. With a **stroke length of 200 mm (7.87 inches)**, the CR4302M offers a balanced compromise between compact footprint and operational range, making it versatile for applications requiring precise positioning in confined spaces, such as robotic assembly, CNC machining, or automated testing systems. The integrated **absolute linear encoder** (with resolutions up to **0.01 mm**) ensures sub-micron-level accuracy, while its **hydraulic drive compatibility** with Parker s **Hydra-Center** or third-party pumps allows for seamless integration into existing hydraulic systems, offering both speed and force customization through adjustable flow rates. Additionally, the actuator s **flanged mounting options** and **standardized interface** simplify installation, reducing lead times and assembly complexity. Whether deployed in high-speed pick-and-place operations, precision alignment tasks, or force-sensitive applications, the CR4302M exemplifies Parker s commitment to innovation, durability, and performance delivering a turnkey solution for engineers seeking a dependable, high-precision linear actuator that minimizes system integration challenges while maximizing operational efficiency.

### **Pros and Cons of buying a Parker Hannifin CR4302M Linear Positioning System (Part Number: 004977501)**

#### **Pros**

1. **High Precision and Accuracy**

The CR4302M is designed for applications requiring precise linear motion control, such as industrial automation, robotics, and CNC machinery. Its ball screw or linear guide system ensures minimal backlash and consistent positioning accuracy, which is critical in high-speed or high-load applications.

2. **Durability and Reliability**

Parker Hannifin is a well-established manufacturer known for producing robust, long-lasting components. The CR4302M is built with high-quality materials, including hardened steel and sealed bearings, which enhance its resistance to wear, corrosion, and environmental factors. This reduces maintenance requirements and downtime over extended use.

3. **Compatibility with Advanced Control Systems**

This linear actuator is designed to integrate seamlessly with PLCs, servo drives, and motion control software (e.g., Parker s own systems or third-party solutions like Siemens, Allen-Bradley, or Beckhoff). Its compatibility with digital feedback devices (e.g., encoders) allows for closed-loop control, improving performance in dynamic applications.

4. **Versatility in Applications**

The CR4302M can be adapted for various industries, including:

- **Automotive:** Assembly lines, welding, or material handling.

- **Aerospace:** Precision positioning in testing or manufacturing.

- **Medical:** Surgical robots or laboratory equipment.

- **Packaging:** High-speed indexing or sorting systems.

Its modular design allows for customization in stroke length, load capacity, and mounting options.

5. **Low Maintenance Requirements**

Parker s linear systems are engineered to minimize friction and wear, reducing the need for frequent lubrication or adjustments. Sealed units also protect against dust, moisture, and contaminants, further extending operational life.

6. **Energy Efficiency**

Modern versions of the CR4302M often incorporate energy-efficient motors and regenerative braking systems, reducing power consumption in continuous or cyclic operations. This can lead to cost savings in large-scale industrial setups.

7. **Support and Warranty**

Parker Hannifin offers comprehensive technical support, including documentation, training, and after-sales service. Their global distribution network ensures quick access to spare parts and maintenance services. Standard warranties typically cover defects in materials and workmanship for a specified period (often 1 2 years), with extended warranties available.

8. **Scalability**

The system can be easily integrated into larger automation setups, whether scaling up from a single axis to multi-axis configurations or upgrading from manual to fully automated processes.

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#### **Cons**

1. **High Initial Cost**

Parker Hannifin products are premium-quality, which comes with a higher upfront investment compared to generic or lower-end brands. The CR4302M may be overkill for simple or low-budget applications where cost-sensitive alternatives (e.g., belt-driven systems or cheaper ball screws) could suffice.

2. **Complex Installation and Setup**

Due to its precision engineering, integrating the CR4302M requires expertise in mechanical alignment, electrical wiring, and software configuration. Mistakes in setup (e.g., improper lubrication, misalignment, or incorrect encoder calibration) can lead to reduced performance or premature failure. This may necessitate hiring specialized technicians or investing in training.

3. **Dependence on Supporting Systems**

The actuator s performance is only as good as its supporting components, such as:

- **Servo Drive/Motor:** Mismatched power or control systems can limit the actuator s capabilities.

- **Feedback Devices:** Low-quality encoders or sensors can introduce errors in positioning.

- **Structural Rigidity:** The machine frame must be stiff enough to prevent vibrations or deflection, which can degrade accuracy.

Poorly matched components can negate the benefits of the CR4302M.

4. **Limited Customization for Non-Standard Applications**

While the CR4302M is highly versatile, heavily customized or non-standard applications (e.g., extreme temperatures, corrosive environments, or non-linear paths) may require additional modifications or specialized variants, increasing costs and lead times.

5. **Potential for Overkill in Low-Demand Scenarios**

For applications with minimal precision requirements (e.g., simple material handling or low-speed indexing), the CR4302M may offer unnecessary complexity and cost. In such cases, simpler alternatives like rack-and-pinion systems or lead screws could be more economical.

6. **Lead Times and Stock Availability**

As a high-demand product, the CR4302M may have longer lead times, especially for custom configurations or rare variants. This can delay project timelines if spare parts or replacements are needed urgently.

7. **Training and Expertise Requirements**

Operating and maintaining the system effectively requires personnel trained in motion control principles. Without proper expertise, users may struggle to optimize performance, troubleshoot issues, or perform routine maintenance correctly.

8. **Potential for Hidden Costs**

Beyond the purchase price, additional expenses may include:

- **Installation labor** (if not self-installed).

- **Software licensing** (for advanced motion control).

- **Calibration and testing** services.

- **Spare parts** (e.g., seals, bearings, or encoders) for long-term use.

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### **Conclusion**

The **Parker Hannifin CR4302M linear positioning system** is a high-performance, reliable, and versatile solution ideal for applications demanding precision, durability, and integration with advanced control systems. Its strengths lie in its accuracy, low maintenance, and compatibility with industrial automation standards, making it a top choice for robotics, CNC machines, and high-speed material handling.

However, its **high cost, complexity of installation, and dependency on supporting systems** make it less suitable for budget-conscious or low-precision applications. Additionally, the need for specialized expertise whether in setup, maintenance, or troubleshooting can be a barrier for smaller operations or teams without prior experience in motion control.

### **Recommendation**

- **Buy the CR4302M if:**

- Your application requires **high precision, repeatability, and reliability** (e.g., aerospace, medical, or advanced manufacturing).

- You have access to **technical expertise** or are willing to invest in training.

- Your budget allows for a **premium, long-term solution** with minimal maintenance.

- The system will be part of a **larger automation ecosystem** (e.g., multi-axis robots, CNC systems) where Parker s integration capabilities are valuable.

- **Consider alternatives if:**

- Your application has **low precision requirements** (e.g., simple material transport or basic indexing). In this case, a **rack-and-pinion system, lead screw, or belt-driven actuator** may be more cost-effective.

- You lack **in-house expertise** in motion control. A simpler system with easier setup (e.g., a pre-configured servo actuator from a different brand) might reduce risks.

- Your budget is **constrained**, and you can tolerate slightly lower performance for a lower upfront cost.

- You require **custom modifications** for extreme environments (e.g., high temperatures, corrosive conditions), which could void warranties or require additional engineering.

For most **industrial automation, robotics, or high-precision manufacturing** applications, the CR4302M is a **strong, justified investment** due to its proven reliability and performance. However, a thorough cost-benefit analysis considering both direct and indirect expenses should be conducted to ensure it aligns with your specific needs.

Details:

AI: The PARKER CR4302M Linear Positioning Stage is a single-axis linear ball bearing designed for precise and accurate motion control. With its high-quality construction and precise positioning capabilities, the PARKER CR4302M Linear Positioning Stage is a key component for ensuring reliable motion control in your automation systems. With the renowned Parker brand name, this unit is reliable and efficient in industrial automation motion control applications. Single-axis linear stage Parker CR4302M.

The model CR4302M offers smooth and consistent performance, making it a valuable asset for various positioning tasks in wide range of industries. Smooth motion.

part #: 004977501 price

  • $99.99

specifications linactuat:

  • brand: Parker
  • mpn: 004977501
  • model: Cr4302m
  • type: Linear Ball Bearing
  • unit type: Unit
  • configuration: Single Axis

returns linactuat:

  • policy: No Returns

offer linactuat:

  • quantity: 1
  • availability: In Stock
  • best offers: True
  • sold: 0
  • started: May 2, 2026
  • options: Ship-to-home

payments linactuat:

  • other
  • credit card: Mastercard
  • wallet: Paypal

general linactuat:

  • Industrial Automation Motion Controls > Rotary Linear Motion > Linear Bearings Bushings
  • condition: Used

seller linactuat:

  • city: Phoenix, Arizona
  • rating: 100.0%
  • # reviews: 26

shipping linactuat:

  • service: USPS Ground Advantage
  • transit: 24-37 Days
  • type: Fixed
  • class: Standard
  • carrier: USPS
  • cost: $12.50
type: linear ball bearing, unit type: unit, configuration: single axis,
category: business & industrial > industrial automation motion controls > rotary linear motion > linear bearings bushings, sku: 14522043393215853,
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1 offer $99.99 USD
  • Used. Offer #1 priced at $99.99 + $12.50 shipping estimate = $112.49* total. Smooth motion.+$12.50 shipping

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