Sce 12 Wuu Linear Bearing Long Type

Detailed Product Review

The Sce 12 Wuu Linear Bearing Long Type is a component designed to meet the precision, rigidity, and load-bearing capacity requirements of linear motion in industrial automation systems. This bearing operates on the principle of minimizing deflection, vibration, and angular deviations that the shaft axes may be subjected to under dynamic and static loads, especially in long-stroke motion axes. The precision-machined balls within its internal structure roll with a low coefficient of friction on the shaft surface, providing linear motion. The long-type configuration offers a wider contact area of the bearing body along the shaft axis, providing higher resistance against moment loads. This allows the shaft to maintain its straightness and positioning accuracy even over long distances. This structural feature plays a critical role in extending the processing quality and the overall lifespan of the system.

This linear bearing series features a corrosion-resistant body made of high-strength alloy steel and balls made of precision-machined bearing steel. The four-bolt mounting mechanism on the mounting surface eliminates the risk of slippage or vibration, even when subjected to high axial and radial loads, guaranteeing repeatable positioning accuracy. This four-point fixing provides high rigidity at the interface between the bearing and the mounting surface, maximizing axial stability even under dynamic operating conditions. The Sce 12 Wuu series can be easily integrated into standard industrial shaft systems with its 12 mm nominal shaft diameter compatibility. Its main application areas include large-scale CNC machining centers, robotic transfer systems, automated assembly lines, and precision measuring instruments, as well as other industrial automation systems requiring long strokes and high precision. Its low friction characteristic enhances energy efficiency while providing a solid foundation for long-term and uninterrupted operations.

High Axial Stability on Long Strokes: The Sce 12 Wuu Linear Bearing Long Type is optimized to minimize bending moments and deflection effects that shaft axes may be subjected to over long travel distances. The long body structure effectively reduces the distance between the shaft’s support points, maintaining the straightness of the shaft and the precision of linear motion even under dynamic loads. This feature is crucial for maintaining machining tolerances and enhancing final product quality, especially in applications involving the processing of large workpieces or requiring precise positioning over long distances. It also increases vibration damping capacity, enhancing the overall rigidity of the system.

Maximum Rigidity with Four-Point Bolt Fixing: Fixing the bearing body to the mounting surface with four bolts offers significantly higher rigidity and stability compared to single or two-point fixing systems. This four-point connection distributes stresses generated at the interface between the bearing and the carrier structure over a wider area, preventing slippage or vibration of the bearing even under high dynamic and static loads. This considerably increases the system’s repeatable positioning accuracy and overall operational stability, especially during high-speed movements or sudden direction changes.

High Dynamic and Static Load Capacity: Manufactured from high-quality, heat-treated alloy steel for the body and precision-machined bearing steel for the balls, the Sce 12 Wuu Linear Bearing Long Type can safely handle high dynamic (550 N) and static (820 N) loads even in demanding industrial environments. This high load capacity increases the bearing’s wear resistance and extends its fatigue life, offering an ideal solution for long-term and uninterrupted operations with minimal maintenance requirements. Furthermore, the optimized internal geometry and surface hardness contribute to maximizing bearing life by increasing resistance to environmental factors such as dust and moisture.

Technical Specifications and Capacity

Technical Frequently Asked Questions (FAQ)

What engineering advantages does the “Long Type” design of the Sce 12 Wuu Linear Bearing offer compared to standard linear bearings?

The “Long Type” design is developed to provide higher resistance against moment loads, which are critical in long-stroke linear motion systems. While standard linear bearings may be sufficient for short-distance movements or low moment loads, deflection and angular deviations in the shaft axis over long strokes can negatively affect machining accuracy and system stability. The long body structure of the Sce 12 Wuu increases the contact surface area between the shaft and the bearing, allowing the shaft to be more effectively supported against bending moments. This maintains shaft straightness even under dynamic loads, offering superior performance in applications requiring high-precision positioning and repeatability. Furthermore, the wider support area increases vibration damping capacity, enhancing the overall rigidity of the system.

How does the four-point bolt fixing mechanism affect the bearing’s performance and lifespan?

The four-point bolt fixing mechanism significantly enhances the system’s overall rigidity and dynamic stability by allowing the bearing body to be attached more robustly and uniformly to the mounting surface. In single or two-point fixings, micro-slippage or vibrations can occur in the bearing body under high dynamic loads or sudden direction changes. The four-point connection prevents these undesirable movements by optimizing load distribution, thereby ensuring repeatable positioning accuracy. Increased rigidity reduces localized stresses on the bearing balls, minimizing wear and extending the bearing’s fatigue life. Additionally, reduced vibration lowers the system’s noise level and creates a more durable structure against environmental factors.

What does the P0 precision class of the Sce 12 Wuu Linear Bearing mean for industrial automation applications?

The P0 precision class represents the “Normal” precision class according to ISO standards and is a sufficient and suitable level of precision for the vast majority of industrial automation systems. This class indicates that the bearing’s dimensional tolerances, rotational accuracy, and operating clearances are within specific limits. P0 class bearings are effectively used in general-purpose CNC machines, automated transport systems, assembly lines, and robotic applications that require high speed and load capacity along with acceptable positioning accuracy. While higher precision classes (such as P4, P2) may be preferred for ultra-precise optical equipment or applications requiring nanometer-level positioning, the P0 class Sce 12 Wuu offers a reliable solution across a wide industrial spectrum by balancing cost-effectiveness and performance.

What lubrication and maintenance procedures are recommended for the optimal performance and lifespan of the Sce 12 Wuu Linear Bearing?

Proper lubrication and regular maintenance are critical for the Sce 12 Wuu Linear Bearing to operate with long-term durability and optimal performance. The bearing should be lubricated with lithium soap-based greases with EP (Extreme Pressure) additives suitable for the -20°C to +80°C operating temperature range. Grease selection should be based on the application environment’s temperature, load, and speed; higher viscosity greases may be preferred for high load and low-speed applications. Initial lubrication should be performed during assembly, followed by re-lubrication at regular intervals (e.g., every 500-1000 operating hours or as recommended by the manufacturer). The amount of grease should be adjusted to fill 30-50% of the bearing volume. Furthermore, using appropriate sealing elements to protect the bearing shaft and body from dust, moisture, and abrasive particles, and keeping the operating environment clean, are factors that directly affect bearing life. Periodic visual inspection of the bearing for signs of wear or abnormal noise should be conducted, and early intervention should be made if necessary.

Mermak has 16 years of experience in industrial automation. Our products are stocked and prepared from our Ankara Uzay Sanayi factory/warehouse. Current stock quantities and prices are updated on our website. Stocked products are dispatched directly from our warehouse, eliminating production waiting times. We ensure careful packaging and meticulous follow-up of invoices and documents. We partner with reliable logistics providers, and the Mermak team closely monitors the shipment process. Upon request, we can arrange product videos or factory viewings via WhatsApp or other contact channels. We proudly supply industries in the United Kingdom, United States, Canada, Australia, Ireland, New Zealand, South Africa, and similar countries and international markets.