MISUMI UA-374940-000945 Linear Block SSEBWL16-180 T266981

( Brand: Misumi ), ( Manufacturer Part Number: UA-374940-000945 ), ( Part Type: Linear Block Guide )

Review MISUMI Lot Of Linear Guide Wide block

The **Misumi UA-374940-000945 SSEBWL16-180 Linear Wide-Block (T266981)** is a high-performance, precision-engineered linear guide system designed for demanding industrial applications requiring smooth, repeatable motion with minimal friction and wear. Part of Misumi s robust **SSEB series**, this wide-block linear guide features a compact yet sturdy design optimized for high-load capacities and extended operational lifespans. The **UA-374940** designation indicates a specific model within Misumi s extensive catalog, tailored for applications where space efficiency and durability are critical, such as CNC machines, automated assembly lines, robotics, or precision measurement equipment. Constructed from high-grade **chrome steel**, the guide block combines exceptional hardness with corrosion resistance, ensuring resilience against harsh environments, including exposure to moisture, dust, and temperature fluctuations. The **SSEBWL16-180** variant incorporates a **16mm rail width** and a **180mm length**, providing a balanced profile for applications where lateral stability and load distribution are essential. Its **T266981** part number further confirms compatibility with Misumi s modular mounting systems, allowing for seamless integration with other components like ball screws, linear actuators, or guide rails. The guide s **full complement of recirculating ball bearings** ensures low-friction movement, reducing energy consumption and wear while maintaining precise positioning accuracy. Additionally, the **wide-block design** enhances rigidity, minimizing deflection under heavy loads, which is particularly advantageous in high-speed or high-precision applications. Misumi s rigorous quality control standards guarantee tight tolerances and consistent performance, making this linear guide an ideal choice for manufacturers seeking reliability without compromising on compactness. Whether used in custom automation projects or as part of a pre-engineered system, the UA-374940-000945 offers a perfect blend of strength, precision, and versatility for industrial motion control needs.

### **Pros and Cons of buying a Misumi UA-374940-000945 (SSEBWL16-180 Linear Wide-Block T266981)**

1. **High Precision and Durability** Misumi is a reputable manufacturer known for producing high-quality linear guides and slides. This specific model (UA series) is designed for heavy-duty applications, offering smooth motion and minimal wear over time. The wide-block design (SSEBWL16) provides stability and load-bearing capacity, making it suitable for industrial or CNC machinery.

2. **Wide Load Capacity** The **16mm block width** (SSEBWL16) and **180mm rail length** (T266981) allow it to handle significant axial and radial loads, reducing deflection under heavy loads. This makes it ideal for applications requiring rigidity, such as automated systems, conveyor belts, or precision positioning stages.

3. **Low Friction and Smooth Operation** The linear guide features **cross-roller bearings**, which distribute load evenly across multiple contact points, reducing friction and extending the lifespan of the components compared to ball-bearing guides.

4. **Compatibility with Misumi s Ecosystem** Misumi offers a wide range of complementary parts (e.g., mounting brackets, covers, seals, and accessories) that integrate seamlessly with this guide. This makes installation, maintenance, and customization easier.

5. **Corrosion Resistance** The standard finish (likely **SUS304 stainless steel**) provides good resistance to rust and moisture, making it suitable for indoor or controlled-environment applications. If exposed to harsh conditions, Misumi also offers coated or hardened variants.

6. **Modular and Customizable** The linear guide can be paired with different rail lengths (e.g., T266981 is 180mm, but Misumi offers longer or shorter options) and accessories like end stops, seals, or lubrication systems to tailor it to specific needs.

7. **Backed by Misumi s Support** Misumi provides technical documentation, CAD files, and customer support, which can be helpful for engineers and machinists during design and integration phases.

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1. **Higher Upfront Cost** Compared to generic or lower-quality linear guides from unknown brands, Misumi parts are premium-priced. For budget-conscious projects, this may be a significant drawback unless the application demands reliability and longevity.

2. **Limited Off-the-Shelf Variety** While Misumi offers many configurations, customization options (e.g., non-standard lengths, materials, or coatings) may require special ordering, leading to longer lead times.

3. **Installation Complexity** Proper alignment and mounting are critical for optimal performance. Misumi provides mounting kits, but improper installation (e.g., misalignment, insufficient preload) can lead to premature wear or noise.

4. **Maintenance Requirements** While cross-roller guides are low-friction, they still require periodic lubrication (unless using sealed or self-lubricating variants) to prevent dust and debris buildup, which can affect smoothness.

5. **Weight** The robust construction means this guide is heavier than lightweight alternatives (e.g., ball-bearing guides). This may impact portability or require reinforced mounting surfaces.

6. **Potential for Overkill in Light-Duty Applications** If the application involves very light loads or low-speed motion, a more affordable guide (e.g., a ball-bearing linear rail) might suffice without the added cost and complexity.

7. **Dependence on Misumi s Supply Chain** If Misumi experiences stock shortages or supply chain disruptions (uncommon but possible), obtaining replacement parts could be delayed.

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### **Conclusion**

The **Misumi UA-374940-000945 (SSEBWL16-180 Linear Wide-Block T266981)** is an excellent choice for **industrial, CNC, or automated systems** where **high load capacity, precision, and durability** are critical. Its cross-roller design, wide block width, and compatibility with Misumi s ecosystem make it a reliable long-term investment. However, the **higher cost, potential installation complexity, and maintenance needs** may not justify its use in **light-duty or cost-sensitive applications**.

### **Recommendation**

- You are working on a **heavy-duty, high-precision machine** (e.g., CNC milling, robotic arms, automated assembly lines).

- You prioritize **longevity, low friction, and minimal maintenance** over cost.

- You plan to use **Misumi s complementary parts** (e.g., mounting brackets, seals) for a cohesive system.

- Your application involves **high axial/radial loads** where deflection must be minimized.

- Your budget is tight, and a **ball-bearing linear rail** (e.g., THK, NSK, or a generic brand) would meet your load requirements.

- The application is **low-speed or light-duty**, where a simpler guide would suffice.

- You need **shorter lead times** and are open to non-Misumi brands with comparable specs.

For most **professional or industrial applications**, this Misumi guide is a **strong recommendation** due to its performance and reliability. For hobbyist or low-load projects, weigh the cost against simpler alternatives.

Details:

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part #: ua374940000945 prices

• $56.25-$210.00

specifications linactuat:

• brand: Misumi
• mpn: Ua-374940-000945
• part type: Linear Block Guide

shipping linactuat:

• carrier: UPS
• type: Calculated
• cost: $15.93
• transit: 4-7 Days
• service: UPS Ground, UPS 2nd Day Air, UPS 3 Day Select, UPS Next Day Air
• class: Standard, Expedited, One-day

payments linactuat:

• credit card: Diners-club
• other
• wallet: Apple-pay

offer linactuat:

• started: March 12, 2026
• options: Ship-to-home
• best offers: True
• quantity: 1
• sold: 0
• availability: In Stock

seller linactuat:

• # reviews: 21454
• rating: 99.7%
• city: El Paso, Texas

returns linactuat:

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

general linactuat:

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

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