THK HRW17CR Linear Actuator Ball Bearing Slide Carriage Rail 550MM

( Brand: Thk ), ( Manufacturer Part Number: HRW17CR ), ( Part Type: Actuator Bearing Linear Slide Guide )

Review THK Linear Actuator Lm Ball Bearing Slide Carriage On 550mm Guide Rail

The **HRW17CR Linear Actuator Ball Bearing Slide Carriage with 550mm Rail** is a precision-engineered, high-performance linear motion system designed for applications requiring smooth, repeatable, and reliable movement along a straight path. This robust slide carriage features a **17mm-wide rail profile**, combining durability with compact installation flexibility, making it ideal for a wide range of industrial, automation, and CNC applications. The **ball bearing guide system** ensures minimal friction and wear, delivering exceptionally low backlash and high load-bearing capacity, which translates to smoother operation, extended component lifespan, and enhanced positional accuracy. Constructed from high-quality **stainless steel or hardened alloy steel** (depending on the variant), the rail is precision-ground to tight tolerances, ensuring consistent performance even under heavy loads or rapid acceleration cycles. The **550mm rail length** provides ample travel distance for medium-duty applications, while the modular design allows for easy extension or replacement if longer travel is required. The carriage itself is equipped with **precisely machined slots and mounting holes**, accommodating a variety of brackets, clamps, and accessories for secure attachment of payloads, sensors, or other components. Whether integrated into a CNC milling machine, a robotic arm, a medical device, or an automated assembly line, this actuator slide offers a perfect balance of strength, precision, and versatility. Its **low-maintenance design** eliminates the need for frequent lubrication, as the sealed ball bearings are pre-lubricated with long-lasting grease, reducing operational downtime and maintenance costs. Additionally, the **corrosion-resistant finish** (such as passivation or anodizing, depending on the model) ensures durability in harsh environments, including those exposed to moisture, dust, or temperature fluctuations. For engineers and designers seeking a dependable linear motion solution, the **HRW17CR** stands out as a cost-effective yet high-performance alternative to more complex systems, offering seamless integration with stepper motors, servo drives, or pneumatic actuators for fully automated control. Its compact yet sturdy construction makes it suitable for both custom-built prototypes and large-scale production setups, where reliability and precision are paramount.

### **Pros and Cons of buying a HRW17CR Linear Actuator with Ball Bearing Slide Carriage (550mm Rail)**

1. **High Load Capacity** The ball bearing slide carriage is designed to handle moderate to heavy loads (typically up to 10 20 kg, depending on mounting and alignment), making it suitable for applications like CNC machines, 3D printers, or automated assembly lines.

2. **Smooth and Precise Motion** Ball bearings reduce friction significantly compared to plain slides, resulting in smoother, more accurate linear movement with less wear over time.

3. **Durable Construction** The aluminum extrusion rail (likely 17mm profile) is sturdy and resistant to bending, while the ball bearings are designed for longevity with proper maintenance.

4. **Modular and Compatible** The 550mm rail length allows for customization in assembly, and the design often integrates with other linear motion systems (e.g., belts, pulleys, or stepper motors) for extended travel.

5. **Cost-Effective for Mid-Range Applications** Compared to high-end precision slides, this actuator offers a balance between performance and affordability, making it a practical choice for hobbyists, small workshops, or light industrial use.

6. **Easy Installation** Most models come with pre-drilled holes and mounting brackets, simplifying assembly without requiring specialized tools.

7. **Low Maintenance** Ball bearings require minimal lubrication (usually just periodic greasing) and have a long service life if kept clean and properly aligned.

8. **Versatile Applications** Works well in CNC routers, pick-and-place machines, automated doors, or custom robotic arms where linear motion is needed.

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1. **Limited Travel Distance** The 550mm rail length is relatively short for some applications. If you need longer travel, you may need to chain multiple units or use a belt-driven system, which adds complexity.

2. **Precision Limitations** While smoother than plain slides, ball bearing slides may still introduce slight backlash or wobble if not properly aligned or if the bearings wear over time. For ultra-precise applications (e.g., high-speed CNC milling), a recirculating ball screw or air bearings might be better.

3. **Weight Limitations** While it handles moderate loads, excessive force (e.g., sudden impacts or misalignment) can cause the bearings to wear out faster or even seize.

4. **Alignment Sensitivity** Poor mounting (e.g., uneven surfaces, loose bolts) can lead to uneven wear on the bearings or rail, reducing performance and lifespan.

5. **No Built-In Limit Switches or Encoders** Unlike some high-end actuators, this model typically lacks integrated position feedback. You d need to add external sensors (e.g., limit switches, encoders) for precise control, adding cost and complexity.

6. **Noise at High Speeds** Ball bearings can produce audible noise when moving at high speeds, which may be an issue in quiet environments.

7. **Limited Customization** The rail length and carriage design are fixed, so you can t adjust parameters like bearing type or rail width without sourcing alternative parts.

8. **Potential for Dust/Debris Entry** Open bearing designs can accumulate dust or metal shavings, which may require regular cleaning to maintain smooth operation.

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The **HRW17CR linear actuator with ball bearing slide carriage (550mm rail)** is a solid choice for applications requiring **moderate load capacity, smooth motion, and cost-effective linear movement**. It excels in **hobbyist projects, small-scale automation, or light industrial setups** where precision isn t extreme but reliability is important. However, it may fall short for **high-speed, ultra-precise, or heavy-duty applications** where recirculating ball screws or air bearings are preferred.

If your project demands **longer travel, higher precision, or heavier loads**, you may need to supplement this with additional components (e.g., belts, limit switches) or consider a more advanced system. For most **DIY CNC builds, automated doors, or simple robotic arms**, this actuator provides an excellent balance of performance and affordability.

- You need a **reliable, smooth linear slide** for loads under 20 kg.

- Your application involves **moderate travel (up to 550mm)** and doesn t require extreme precision.

- You re working on a **budget-friendly project** where cost is a priority over maximum performance.

- You re willing to **add external sensors or belts** for extended functionality.

- You require **longer travel** (e.g., >1 meter) without adding complexity.

- Your application demands **sub-millimeter precision** (e.g., high-end CNC machining).

- The load is **very heavy or dynamic** (e.g., frequent impacts or vibrations).

- Noise or maintenance concerns are critical (e.g., cleanroom or high-speed operations).

For most users, this actuator is a **practical and well-performing option** when used within its intended specifications. Pair it with proper lubrication, alignment, and complementary components (e.g., stepper motors, belts) to maximize its lifespan and performance.

Details:

THK Linear Rail w/ Carriage. Carriage Dimensions: 50.8mm L x 50mm Wide 17mm w/rail. If you do not have an account No Worries. Address, Next Day Automation, 9472 Hemlock Lane N.

This is a surplus item. Specifications: model #: HRW17CR. Dynamic Load Rating: 5.53kN.

part #: hrw17cr prices

• $90.00-$189.98

specifications linactuat:

• brand: Thk
• mpn: Hrw17cr
• part type: Actuator Bearing Linear Slide Guide

shipping linactuat:

• transit: 2-5 Days
• cost: $0.00
• type: Calculated
• carrier: USPS, UPS
• class: Standard, Expedited, One-day
• service: USPS First Class, USPS Priority Mail Padded Flat Rate Envelope, UPS Next Day Air

general linactuat:

• Industrial Automation Motion Controls > Rotary Linear Motion > Slides, Rails Carriages
• condition: Used

seller linactuat:

• city: Osseo, Minnesota
• # reviews: 44411
• rating: 100.0%

returns linactuat:

• method: Money back
• time: 30 Days
• policy: Returns Accepted
• paid by: Seller

offer linactuat:

• best offers: True
• sold: 0
• quantity: 2
• availability: In Stock
• started: March 19, 2026
• options: Ship-to-home

payments linactuat:

• wallet: Paypal
• other
• credit card: Mastercard
• cash

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