6000ZZ Carbon Steel Ball Bearing: 10x26x8mm Deep Groove Bearing with Iron Retainer

This 6000ZZ bearing is a standard deep groove ball bearing designed for general industrial applications requiring a compact component with moderate load capacity. Its dimensions of 10 mm inner diameter, 26 mm outer diameter, and 8 mm width conform to common sizing, facilitating straightforward integration into mechanical designs. Manufactured to the CB/T3103-2013 standard from carbon steel with an iron retainer, it offers a practical solution for rotary motion in tools, conveyors, small electric motors, and various machinery subsystems. The bearing's P0 precision grade and specified load ratings provide engineers and maintenance technicians with clear parameters for reliable use.

Specifications and Technical Data

The following details are drawn directly from the product's provided technical information. These specifications define the bearing's operational limits and intended use cases, allowing for accurate selection and application.

Core Dimensions and Model

The bearing is model 6000ZZ, indicating a deep groove ball bearing with metal shields on both sides (denoted by 'ZZ'). Its key dimensional identifiers are an inner diameter (d) of 10 mm, an outer diameter (D) of 26 mm, and a width (B) of 8 mm. This 10x26x8mm size profile is a standard within the 6000 series, ensuring compatibility with common shaft and housing designs. The dimensions are critical for ensuring a correct press or slip fit during assembly.

Load Ratings and Speed Limits

The bearing has a dynamic load rating (Cr) of 80 kN and a static load rating (Cor) of 83 kN. These values indicate the radial load the bearing can sustain under motion (Cr) and while stationary (Cor) before experiencing functional failure. The operational speed is limited by the lubrication method: a maximum of 2860 revolutions per minute when using grease lubrication, and a higher limit of 8736 rpm when using oil lubrication. Selecting the appropriate lubrication method is essential for applications running at higher speeds.

Precision and Construction

This bearing is classified with a precision grade of P0. In the ISO precision class system, P0 is the standard, most commonly used grade for general applications where ultra-high running accuracy is not required. The construction involves carbon steel for the inner ring, outer ring, and balls, providing fundamental strength and wear resistance. The retainer, which separates the balls, is made from iron. This material combination offers a cost-effective and widely applicable bearing solution.

Application and Use Cases

The technical profile of the 6000ZZ bearing makes it suitable for a range of mechanical environments. Its use is dictated by its size, load capacity, speed limits, and the practical requirements of the machinery it serves.

Industrial Machinery and Tools

This bearing can be found in various industrial settings, supporting shafts in light-duty gearboxes, pulleys, idler rollers for conveyors, and the spindles of hand tools or small power tools. Its 10 mm bore size is common in smaller mechanical assemblies. The P0 grade is typically sufficient for these applications, where the primary requirement is reliable rotation rather than extreme positional accuracy.

Electric Motors and Fans

Small electric motors, such as those in household appliances, ventilation fans, or low-power drives, often utilise bearings of this size and series. The dual lubrication compatibility allows manufacturers to select grease for sealed-for-life applications or oil for systems with circulating lubrication. Adherence to the published speed limits is crucial for ensuring motor longevity and preventing overheating due to bearing friction.

General Maintenance and Replacement

For maintenance technicians, this bearing serves as a direct replacement part for any machinery originally equipped with a 6000ZZ or dimensionally equivalent bearing. Having the exact dimensions (10x26x8mm), shield type (ZZ), and a standard P0 grade ensures functional compatibility. It is important to match the lubrication method used in the original application to maintain performance.

Selection and Operational Guidance

Choosing and using this bearing effectively relies on understanding its specifications and limits. Proper handling, installation, and maintenance are key to achieving its intended service life.

Matching to Application Requirements

Before selection, verify that the application's shaft size (10 mm), housing bore (26 mm), and available axial space (8 mm width) match the bearing. The expected radial load must be below the static and dynamic ratings (83 kN and 80 kN respectively), and the operating speed must not exceed 2860 rpm for grease or 8736 rpm for oil. The P0 grade is appropriate where standard runout and vibration levels are acceptable.

Installation Best Practices

Correct installation is vital. Use proper tools to press the bearing onto the shaft, applying force evenly to the inner ring. Similarly, press the bearing into the housing using force on the outer ring. Avoid misalignment, as this induces uneven loads and accelerates wear. Ensure the bearing and mating surfaces are clean to prevent contamination, which can lead to premature failure.

Lubrication and Ongoing Care

The bearing's performance is tied to its lubrication. For grease-lubricated applications, use a quality bearing grease suitable for the operating temperature and replenish it according to the machinery's maintenance schedule, especially since the speed limit is lower (2860 rpm). For oil-lubricated systems, ensure the oil is clean, at the correct level, and of the appropriate viscosity for the operating speed (up to 8736 rpm). Regular inspection for noise, vibration, or overheating can indicate when maintenance or replacement is needed.