Ball bearing 626 ZZ, double-shielded single-row radial bearing, No name

Single-row radial ball bearing 626 ZZ is a compact, double-shielded bearing designed for applications where moderate radial loads and rotational accuracy are required. The ZZ designation indicates metal shields on both sides that protect internal components from dust and coarse contaminants while helping to retain lubricant. This bearing is commonly used as a replacement or servicing part in small motors, gearboxes, household appliances and light machinery where non-contact metal shields provide a balance between protection and low friction.

Advantages

The double metal shields reduce ingress of dust and debris without creating contact friction, which helps maintain rotational efficiency. Its single-row radial design provides reliable support for radial loads with a simple, compact profile that fits into constrained assemblies. The bearing is maintenance-friendly and compatible with common lubricants, offering straightforward replacement for worn or noisy bearings in small devices.

Suitable for

• Electric motors in consumer and industrial equipment
• Small gearboxes and transmission assemblies
• Household appliances such as washers, fans, and kitchen equipment
• Light machinery and hobbyist mechanical projects

Key specifications

• Configuration: single-row radial ball bearing
• Shielding: double metal shields (ZZ) on both sides
• Load type: primarily radial loads
• Lubrication: pre-lubricated or compatible with standard bearing greases
• Friction level: low due to non-contact metal shields
• Typical fit: press-fit on shaft or into housing depending on application

How to use

Install the 626 ZZ bearing by ensuring mating shaft and housing surfaces are clean and free of burrs. Press the bearing onto the shaft or into the housing using appropriate tooling that applies force to the bearing ring being fitted to avoid damage. Check alignment and axial clearance according to the equipment manufacturer's recommendations. If the bearing is supplied pre-lubricated, additional lubrication may not be required immediately; otherwise, apply a thin, even layer of compatible grease. Reassemble surrounding components and run the equipment at low speed to confirm smooth operation before full load.

Usage recommendations

Select this double-shielded 626 ZZ bearing where protection from dust and retention of lubricant are needed without the increased friction of contact seals. Avoid environments with heavy contamination, liquid ingress, or high axial loads where fully sealed or specialized bearings would be more appropriate. Follow manufacturer guidance for shaft tolerance, mounting tools, and operating temperature limits to maximize service life.