SKF W619/6‑ZZ Ball Bearing 6x15x5 mm

Technical specification & design features

The SKF W619/6-2Z is a single-row deep groove ball bearing with a bore of 6 mm, an outer diameter of 15 mm, and a width of 5 mm. Its designation “-2Z” indicates it is equipped with metal shields on both sides, enhancing its protection against dust and contamination while maintaining low friction and high speed capability.
Constructed with high-quality bearing steel and precision manufacturing standards, this bearing supports both radial and axial loads. The miniature size and robust design make it a versatile bearing unit for compact assemblies, enabling extended service life and consistent performance.

Industrial & automotive applications - key advantages

In global English-language search trends, terms such as “deep groove ball bearing 6x15x5”, “SKF W619/6-2Z bearing”, “miniature bearing 6mm bore” and “high durability industrial bearing” appear frequently, reflecting demand from OEMs and maintenance departments.
This unit is especially suitable for:

• Compact gearboxes, motor drives, tooling spindles and automation equipment

• Automotive systems including actuators, pumps, auxiliary drives
  Key benefits for B2B customers include:

• High durability and reliability across industrial applications

• Reduced friction and efficient operation, supporting smooth machine performance

• Compatible dimensions (6x15x5 mm) for rapid replacement and stock-keeping

• Trusted brand engineering: SKF ensures stable supply continuity and quality consistency

Installation, operational guidance & maintenance

When mounting this deep groove ball bearing, ensure the shaft and bore surfaces are clean, smooth and free of damage. The metal-shielded design (-2Z) protects the bearing during operation but does not preclude proper lubrication. If the application involves higher contamination levels or wet environments, consider alternatives with rubber seals.
The miniature dimension enables high-speed operation; adherence to lubrication and alignment practices is critical to achieving full life expectancy. Proper handling, correct press-fit techniques and avoidance of excessive radial loads will help maintain optimal bearing performance.

FAQ - Frequently Asked Questions

Q1: What is the difference between shielded (2Z) and sealed (2RS) bearings?
A1: Shielded bearings (2Z) have metal shields that protect against coarse contamination while maintaining lower friction compared to sealed types (2RS). Sealed bearings are better for environments where ingress of moisture or fine particles is a major concern.

Q2: Why choose a 6x15x5 mm miniature bearing?
A2: The compact dimensions make it ideal for applications requiring small footprint bearing units, high speed and efficient radial/axial load accommodation in constrained spaces.

Q3: What industries use this bearing size frequently?
A3: Miniature deep groove bearings like this are used in automation equipment, robotics, medical devices, automotive actuators and small gear drives where reliability and precision matter.

Q4: How to select the right bearing dimension?
A4: Match the bore diameter (6 mm) with the shaft, outer diameter (15 mm) with the housing, and width (5 mm) with the available space. Confirm load conditions, rotation speed and environment to ensure proper bearing selection.

Q5: What is the expected price availability and delivery time?
A5: Availability varies - maintain proper stock and consider procurement horizon.
SKF and other major brands support global distribution and high-volume supply.