4x13x4mm U604ZZ U Groove Guide Pulley Sealed Rail Ball Bearing 3D Printer
U604ZZ U-Groove Guide Pulley Ball Bearing is a precision-engineered deep groove ball bearing designed for smooth and reliable linear motion applications. Manufactured from high-quality chrome steel and pre-lubricated with grease, it features a U-shaped groove that allows it to run efficiently on round rails, guide rods, cables, and tracks. The bearing incorporates double metal shields (ZZ) to protect against dust and contaminants while retaining lubrication. With dimensions of 4mm × 13mm × 4mm, the U604ZZ is widely used in 3D printers, CNC machines, automation equipment, sliding systems, and guide rail mechanisms.
محمل كروي U604ZZ ذو مجرى على شكل U هو محمل دقيق مصمم لتطبيقات الحركة الخطية والانزلاق السلس على القضبان والمسارات. مصنوع من فولاذ الكروم عالي الجودة ومزود بشحم تشحيم مسبق لضمان أداء موثوق وعمر تشغيل طويل. يتميز بمجرى على شكل U يسمح بالحركة السلسة على الأعمدة الدائرية والأسلاك والسكك المختلفة. كما يحتوي على درعين معدنيين (ZZ) لحماية المحمل من الغبار والشوائب مع الحفاظ على مادة التشحيم. يُستخدم بشكل واسع في الطابعات ثلاثية الأبعاد، وآلات CNC، وأنظمة الأتمتة، والمعدات الميكانيكية الدقيقة.
The U604ZZ U-Groove Ball Bearing is a compact and versatile guide pulley bearing designed for applications requiring smooth rolling motion along rails, rods, wires, and guide tracks. Featuring a precision-machined U-shaped groove, it provides stable guidance and reduced friction in motion systems.
Constructed from durable chrome steel, the bearing offers excellent wear resistance, strength, and long service life. The bearing is factory-filled with high-quality grease to ensure smooth operation and minimal maintenance requirements.
The double metal shields (ZZ) protect the internal rolling elements from dust, debris, and contaminants while helping retain lubrication inside the bearing. This design improves reliability and extends operating life in demanding environments.
Due to its compact dimensions and high rotational speed capability, the U604ZZ is commonly used in 3D printers, CNC machines, linear motion systems, conveyor equipment, robotics, automation projects, sliding doors, and guide rail assemblies.
Specifications
| Specification | Details |
|---|---|
| Model | U604ZZ |
| Bearing Type | Deep Groove Ball Bearing |
| Groove Type | U-Groove |
| Material | Chrome Steel |
| Lubrication | Grease |
| Closure Type | Double Metal Shield (ZZ) |
| Inner Diameter (D) | 4 mm |
| Outer Diameter (B) | 13 mm |
| Width (A) | 4 mm |
| Groove Radius (R) | 1 mm |
| Dynamic Load Rating (Cr) | 975 N |
| Static Load Rating (Cor) | 350 N |
| Maximum Speed (Grease Lubrication) | 56,000 RPM |
| Bearing Design | Sealed Guide Pulley Bearing |
Applications
- 3D printer guide systems
- CNC machine linear motion assemblies
- Robotics and automation equipment
- Sliding door mechanisms
- Guide rail and track systems
- Cable guide rollers
- Conveyor systems
- Linear bearing replacements
- DIY mechanical projects
- Industrial motion control systems
- Precision positioning equipment
- Small pulley and tracking applications