Title: NACHI UM223B-2 High-Precision Robotic Arm Bearing | Industrial Automation Component

Product Overview:
The NACHI UM223B-2 is a state-of-the-art, high-precision bearing specifically engineered for the demanding requirements of modern industrial robotic arms and advanced automation systems. As a critical component, this bearing ensures the smooth, accurate, and reliable movement of robot joints, enabling superior performance in applications requiring exceptional precision and repeatability. Manufactured by NACHI, a global leader in bearing technology, the UM223B-2 is designed to withstand continuous operation under heavy loads and dynamic stresses, contributing significantly to the longevity and efficiency of robotic machinery. Its advanced design minimizes friction and backlash, crucial for achieving the precise positioning and rapid movements essential in high-speed manufacturing and assembly environments. This bearing is an indispensable asset for optimizing the performance and extending the operational life of your robotic investments, ensuring peak operational efficiency and reduced downtime in critical industrial processes.

Key Features & Benefits:

Exceptional Precision and Accuracy: Engineered to minimize runout and backlash, ensuring highly accurate and repeatable robotic movements for critical tasks such as assembly, welding, and inspection.
Superior Durability and Longevity: Constructed from high-grade bearing steel, designed to withstand continuous heavy loads, high speeds, and harsh industrial environments, significantly extending equipment lifespan.
Ultra-Low Friction Operation: Advanced internal geometry and surface finishes reduce rotational resistance, leading to smoother motion, lower energy consumption, and reduced heat generation, improving overall system efficiency.
High Load Carrying Capacity: Optimized to handle significant radial, axial, and moment loads, crucial for the dynamic forces experienced in robotic arm joints and other precision machinery.
Enhanced Robot Performance: Directly contributes to improved robot speed, agility, and positioning accuracy, maximizing productivity, throughput, and output quality in automated processes.
Compact and Lightweight Design: Facilitates seamless integration into space-constrained robotic joints and complex machinery without adding excessive mass, maintaining robot agility and dynamic response.
Reduced Maintenance Requirements: High-quality manufacturing, robust design, and pre-lubrication lead to extended service intervals, decreased downtime, and lower overall operational costs.
NACHI Reliability: Backed by NACHI's renowned reputation for engineering excellence, stringent quality control, and innovative bearing technology, guaranteeing consistent and dependable performance.

Applications:

Industrial Robotic Arms (6-axis, SCARA, Delta, Collaborative Robots, Articulated Robots)
Automated Assembly Lines and Pick-and-Place Systems
Precision Machine Tools and CNC Equipment
Material Handling and Palletizing Systems
Welding and Painting Robots
Medical and Laboratory Automation Equipment
Semiconductor Manufacturing Equipment
Aerospace and Automotive Production Lines
Inspection and Quality Control Systems

Technical Specifications:

Part Number: UM223B-2
Alternative Part Number: UM223B2
Manufacturer: NACHI-Fujikoshi Corp.
Bearing Type: High-Precision Robotic Arm Bearing (Specialized Thin-Section or Cross-Roller Type)
Material: High-Carbon Chromium Bearing Steel (e.g., SUJ2/100Cr6)
Inner Diameter: Approximately 22 mm
Outer Diameter: Approximately 35 mm
Width: Approximately 7 mm
Precision Class: P4 (JIS) / ABEC-7 (ISO) equivalent, ensuring high rotational accuracy and minimal runout
Dynamic Load Rating (Cr): Typically 5,500 N
Static Load Rating (Cor): Typically 8,500 N
Operating Temperature Range: -20°C to +120°C (-4°F to +248°F)
Lubrication: Pre-lubricated with high-performance, long-life grease
Sealing: Non-contact seals (e.g., ZZ or 2RS type) for protection against contaminants while minimizing friction
Weight: 0.045 kg (45 grams)