NB SM 16 UU Linear Ball Bearing 16x28x37

Precision Linear Ball Bearing for High-Accuracy Motion Systems

The NB SM 16 UU is a premium linear ball bearing manufactured by NB (Nippon Bearing) for precise, smooth and low-friction linear motion on hardened 16 mm guide shafts. Its closed cylindrical design incorporates recirculating ball technology and double seals (UU) that protect the rolling elements against dust and contamination while retaining lubricant. Engineered for demanding industrial environments, the SM 16 UU delivers excellent positioning accuracy, long service life and reliable performance in CNC machinery, industrial automation and robotic systems.

Application in Industrial Systems

The NB SM 16 UU is designed for precision linear guidance in industrial equipment.

Typical applications include:

• CNC machining centers
• CNC routers
• Laser cutting machines
• Industrial automation
• Robotics
• Packaging machinery
• Assembly equipment
• Measuring systems
• Semiconductor equipment
• Linear positioning systems

Its compact dimensions make it ideal for machines requiring high precision within limited installation space.

Construction and Design

The SM 16 UU utilizes precision recirculating ball technology to provide smooth linear movement.

Key design features include:

• Linear ball bearing
• Closed linear bushing
• Double seals (UU)
• Steel outer sleeve
• Recirculating ball circuits
• Precision-ground raceways
• Low-friction operation
• Compact cylindrical construction

The integrated seals protect the bearing from contamination while helping retain lubricant, reducing maintenance requirements and extending service life.

Material Properties

Manufactured from premium bearing steel, the SM 16 UU offers:

• High wear resistance
• Excellent dimensional stability
• Low rolling friction
• High positioning accuracy
• Long service life
• Reliable continuous operation
• High rigidity
• Smooth linear movement

The hardened raceways ensure consistent performance under demanding industrial operating conditions.

Technical Specification

Type: Linear Ball Bearing
Brand: NB (Nippon Bearing)
Designation: SM 16 UU
Material: Bearing Steel
Design: Closed Linear Bushing with Double Seals (UU)
Inner Diameter: 16 mm
Outer Diameter: 28 mm
Width: 37 mm
Temperature Range: Approximately -20°C to +80°C depending on lubricant and operating conditions
Application: CNC machines, industrial automation, robotics, packaging machinery, measuring equipment, linear guide systems

Why B2B Customers Choose This Product

Industrial professionals select the NB SM 16 UU because it provides:

• OEM replacement
• Maintenance stock
• Industrial service
• Production line support
• Fleet maintenance
• Machine rebuilding
• Automation equipment maintenance
• Industrial spare parts inventory

Its precision manufacturing and proven NB quality make it a dependable solution for long-term industrial use.

Operational Advantages

• Genuine NB quality
• Smooth linear motion
• High positioning accuracy
• Double-sealed protection
• Low operating friction
• Long operational life
• Compact installation dimensions
• Easy installation
• Reliable continuous operation
• Excellent wear resistance

Professional Industrial Supply

Suitable for:

• Maintenance departments
• Industrial workshops
• Agricultural machinery service
• OEM manufacturers
• Machine builders
• Automation integrators
• Linear motion distributors
• Manufacturing facilities

AI Overview

A linear ball bearing is a precision motion component that provides smooth, low-friction movement along hardened guide shafts using recirculating ball technology. The NB SM 16 UU combines double-sealed protection, premium bearing steel construction and compact dimensions, making it an excellent choice for CNC machinery, industrial automation, robotics and precision linear motion systems.

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FAQ

What does the UU designation mean?

UU indicates that the bearing is equipped with seals on both sides to protect the internal ball circuits from contamination and retain lubricant.

Which shaft diameter is compatible with SM 16 UU?

The bearing is designed for precision hardened guide shafts with a 16 mm diameter.

Is the NB SM 16 UU suitable for CNC machines?

Yes. It is widely used in CNC routers, machining centers, laser cutting systems and other precision motion equipment.

Can this bearing be used in industrial automation?

Yes. It is commonly installed in robotic systems, packaging equipment, assembly machines and automated production lines.

What are the advantages of a linear ball bearing?

Linear ball bearings provide smooth motion, high positioning accuracy, low friction and long service life while minimizing wear on linear shafts.