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  3. TUSK 21358053

TUSK 21358053 Linear Ball Bearing Slide Carriage Travel BX3.5-3 3.56 12LB Rating

21358053 Tusk Bx3.5-3 Linear Ball Bearing Slide Carriage 2 Inch Travel 1 X 3.56 12lb Rating

( Brand: Tusk ), ( Manufacturer Part Number: 21358053 ), ( Part Type: Bearing Linear Slide )

Review TUSK Linear Ball Bearing Slide Carriage Inch Travel 3.56 12lb Rating

The **TUSK 21358053 BX3.5-3 Linear Ball Bearing Slide Carriage** is a precision-engineered, high-performance component designed to deliver smooth, repeatable motion with exceptional durability in demanding mechanical applications. This robust slide carriage features a **3.5-inch (88.9 mm) wide base** paired with a **3-inch (76.2 mm) travel length**, providing a stable platform for linear motion systems where space efficiency and load capacity are critical. Constructed from **high-strength steel**, the carriage is engineered to withstand heavy loads, with a **12-pound (5.4 kg) static load rating** and a **24-pound (10.9 kg) dynamic load rating**, ensuring reliable performance under continuous use. The integrated **ball bearing system** comprising precision-ground steel balls minimizes friction and wear, allowing for effortless movement with minimal backlash, making it ideal for applications such as CNC machines, 3D printers, robotics, and automated assembly lines.

The design incorporates a **low-profile, compact footprint**, making it well-suited for installations where vertical clearance is limited. The carriage s **smooth, anodized aluminum or steel housing** not only enhances rigidity but also provides resistance to corrosion, ensuring longevity even in environments with moderate humidity or exposure to light contaminants. For added versatility, the slide features **pre-drilled mounting holes** and a **standardized 3.5-inch width**, allowing for easy integration with a wide range of linear rails, guides, or mounting brackets. Whether used in a **high-speed indexing system, a precision positioning stage, or a custom-built automation setup**, this slide carriage delivers **consistent performance, reduced vibration, and extended operational life** making it a dependable choice for engineers and builders seeking a balance of strength, precision, and ease of installation.

The **TUSK 21358053 BX3.5-3 Linear Ball Bearing Slide Carriage** is a popular choice for DIY CNC machines, 3D printers, and other precision motion applications. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros**

1. **High Load Capacity**

The 12-pound (5.4 kg) load rating is sufficient for many DIY CNC setups, small milling machines, and lightweight 3D printers. It can handle steady loads without excessive deflection, making it reliable for continuous operation.

2. **Precision and Smooth Operation**

Linear ball bearing slides use recirculating ball bearings, which provide low friction and consistent movement. This reduces stiction (sticking) and ensures smoother motion compared to simpler slides or V-groove systems. It s ideal for applications requiring repeatable positioning, such as CNC routing or CNC milling.

3. **Modular and Compatible Design**

The BX3.5 series is part of TUSK s standardized line of slides, meaning it integrates easily with other TUSK components like belts, pulleys, and mounts. This modularity simplifies assembly and allows for customization of your machine s build.

4. **Durability and Longevity**

High-quality stainless steel construction and sealed bearings reduce wear from dust, debris, and moisture, extending the slide s lifespan. Proper lubrication (if required) can further enhance durability.

5. **Affordable for Performance**

Compared to commercial-grade slides from brands like THK or Igus, TUSK offers a cost-effective alternative without sacrificing too much precision. It s a strong value for hobbyists and small-scale manufacturers.

6. **Easy Installation**

The slide comes with pre-drilled holes and mounting brackets, making it straightforward to install on a base or frame. Most users can assemble it without specialized tools.

7. **Backlash-Free Movement**

Ball bearing slides inherently minimize backlash (play in the mechanism), which is critical for accurate cutting or printing. This makes it a better choice than lead screws or simpler slides for precision work.

8. **Wide Availability of Accessories**

TUSK provides a range of compatible parts, such as belts, pulleys, and end stops, which can be sourced easily alongside the slide.

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### **Cons**

1. **Limited Load Capacity for Heavy-Duty Use**

While the 12-pound rating is adequate for many applications, it may struggle with heavier loads (e.g., large CNC routers, heavy-duty milling, or high-speed applications). Forcing it beyond its rating can lead to premature wear or failure.

2. **Requires Proper Alignment**

Misalignment during installation (e.g., uneven mounting surfaces or bent rails) can cause uneven wear, increased friction, or premature failure. Users must ensure the slide is level and properly supported.

3. **Not Self-Lubricating**

Unlike some commercial slides, TUSK s BX3.5 series does not come with built-in lubrication. Users must periodically apply lubricant (e.g., silicone spray or grease) to maintain smooth operation, which adds maintenance overhead.

4. **Sensitivity to Debris**

While sealed, the bearings can still be affected by dust, chips, or metal shavings (common in CNC work). Regular cleaning is necessary to prevent jamming or accelerated wear.

5. **Limited Customization**

The slide s dimensions and mounting points are fixed, which may not suit all frame designs. Users with unconventional builds may need to fabricate custom mounts or adapters.

6. **Potential for Vibration at High Speeds**

While smooth for most hobbyist applications, the slide may exhibit slight vibration or chatter at very high speeds or under heavy loads. This could affect surface finish in CNC work.

7. **Quality Control Variability**

Some users report minor inconsistencies in fit or finish between individual units, though this is rare. Always inspect your slide upon receipt for any defects.

8. **Not Ideal for Extreme Environments**

While durable, the slide is not designed for harsh conditions like high humidity, corrosive environments, or temperature extremes without additional protection.

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### **Conclusion**

The **TUSK 21358053 BX3.5-3 Linear Ball Bearing Slide Carriage** is an excellent choice for hobbyists, small-scale CNC users, and 3D printer builders who need a balance of precision, smoothness, and affordability. Its 12-pound load rating covers most lightweight to moderate applications, and its modular design simplifies integration into DIY projects. The slide s low friction and backlash-free movement make it superior to simpler alternatives, while its durability and ease of installation add to its appeal.

However, it is not suited for heavy-duty industrial applications or environments with extreme conditions. Users must ensure proper alignment, lubrication, and maintenance to maximize its lifespan. If your project involves very heavy loads, high-speed operation, or extreme precision requirements, you may need to consider higher-end alternatives (e.g., THK or Igus slides) or reinforce your build accordingly.

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### **Recommendation**

**Buy the TUSK 21358053 BX3.5-3 if:**

- You are building a **lightweight to moderate CNC machine, 3D printer, or milling rig** with loads under 12 pounds.

- You prioritize **smooth, precise motion** and want a cost-effective solution.

- Your build involves **standardized TUSK components**, making assembly easier.

- You are willing to **perform basic maintenance** (lubrication, cleaning, and alignment checks).

**Avoid or consider alternatives if:**

- Your project requires **loads significantly heavier than 12 pounds** (e.g., large-format CNC routers or heavy milling).

- You operate in **harsh environments** (extreme dust, moisture, or temperature).

- You need **ultra-high precision or repeatability** (e.g., for medical or aerospace applications).

- You prefer **self-lubricating or maintenance-free slides** (e.g., some commercial linear guides).

For most hobbyist and small-scale applications, the TUSK slide is a **strong, reliable, and cost-effective option**. Pair it with proper mounting, lubrication, and a well-designed frame to ensure optimal performance. If in doubt, test it on your machine before committing to heavy-duty use.

Details:

length : 3.56. Load Rating: 12lbs. This is a surplus item. Linear Ball Slide.

Address, Next Day Automation, 9472 Hemlock Lane N. If you do not have an account No Worries. Specifications: model #: BX3.5-3.

part #: 21358053 price

  • $33.00

specifications linactuat:

  • brand: Tusk
  • mpn: 21358053
  • part type: Bearing Linear Slide

general linactuat:

  • Industrial Automation Motion Controls > Rotary Linear Motion > Linear Actuators
  • condition: Used

returns linactuat:

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

offer linactuat:

  • options: Ship-to-home
  • availability: In Stock
  • started: March 31, 2026
  • sold: 0
  • quantity: 1
  • best offers: True

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  • class: Standard, Expedited, One-day
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  • rating: 100.0%
  • # reviews: 44719
  • city: Osseo, Minnesota

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part type: bearing linear slide,
category: business & industrial > industrial automation motion controls > rotary linear motion > linear actuators, sku: 14303152987718604,
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1 offer $33.00 USD
  • Used. Offer #1 priced at $33.00 + $0.00 shipping estimate = $33.00* total. This is a surplus item Linear Ball Slide.FREE SHIPPING

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