SKF 626 ZZ C3 Deep-Groove Ball Bearing (6x19x6 mm)

Main Description

The SKF 626 ZZ C3 is a precision deep-groove ball bearing designed for small-scale, high-reliability applications. With bore 6 mm, outer diameter 19 mm, and a narrow width of 6 mm, this compact bearing is an optimal choice for bearing units, tiny motor shafts, and compact mechanical assemblies where space is at a premium.

The ZZ designation refers to the double metal shields on both sides of the bearing. These metal shields provide effective protection against dust and external contaminants while retaining the internal lubricant, which helps reduce maintenance and extends operational life. At the same time, the bearing’s design ensures minimal friction, enabling smooth continuous rotation.

Another standout feature is its C3 internal clearance. This means that the bearing is manufactured with extra radial clearance compared to standard bearings, allowing it to accommodate thermal expansion, high rotational speeds, and dynamic operating conditions. The increased clearance ensures that the bearing continues to function efficiently even under thermal stress.

Built from high-grade bearing steel, the SKF 626 ZZ C3 delivers high durability and reliable load capacity. Its deep-groove architecture supports both radial loads and moderate axial forces, making it versatile for a wide range of industrial applications. Given its tiny size and robust design, this bearing is particularly suited for industrial units, precision gearboxes, compact motors, and small rotating mechanisms.

Thanks to its low-profile form factor, superior sealing, and precise engineering, this bearing offers an excellent cost-performance solution for B2B buyers seeking reliable, long-lasting components with minimal maintenance requirements.

Technical Specifications

• Type: Single-row deep-groove ball bearing

• Model: 626 ZZ C3

• Brand: SKF

• Bore (d): 6 mm

• Outer Diameter (D): 19 mm

• Width (B): 6 mm

• Shielding: ZZ (metal shields both sides)

• Internal Clearance: C3 (higher than standard)

• Material: Bearing-grade steel

• Cage: Steel cage

• Typical Applications: small motors, unit-bearing housings, precision gearboxes, industrial machines

FAQ

Q1: What does “ZZ” mean in this model?
A1: “ZZ” indicates metal shields on both sides of the bearing, protecting internal elements from contaminants while keeping grease inside.

Q2: What advantage does “C3” clearance provide?
A2: The C3 internal clearance gives extra space inside the bearing to accommodate thermal expansion and dynamic loads, improving performance under demanding conditions.

Q3: Where is this bearing commonly used?
A3: It’s ideal for small industrial applications—such as compact motors, precision gear units, and bearing housings—where space is limited but reliability is crucial.

Q4: Does this bearing require frequent maintenance?
A4: Thanks to its sealed design (ZZ) and internal lubrication, maintenance is minimal, offering longer service intervals and reduced downtime.