The 626 Z is a Premium Miniature Deep Groove Ball Bearing engineered for high-speed precision applications. Featuring a single metal shield (Z), this metric bearing balances protection against debris with low-friction performance. With a 6mm bore, it is ideal for small motors, power tools, and precision instrumentation requiring a compact footprint.
626 Z Deep Groove Ball Bearing 6x19x6 mm | ISO 62 Series – Light | Single Shielded
Premium miniature precision bearing featuring the universal deep groove geometry. Engineered for high-speed performance up to 40,000 r/min (Oil). The 626 Z is capable of supporting significant radial loads and moderate axial loads, making it ideal for precision instrumentation and electric motors.

Ideally suited for a broad spectrum of precision and industrial equipment:
The non‑contact steel shield on one side provides effective defense against larger dust and particles in demanding conditions. It helps retain internal lubrication while maintaining very low friction, offering a balanced solution for applications where minimal drag is prioritized.
Designed within the light series, this bearing delivers strong radial load support (Dynamic: 4.05 kN) within a compact form. Its universal deep‑groove geometry also accommodates moderate axial loads from both directions, ensuring versatility in varied mechanical layouts.
Manufactured to standard industrial tolerances and available in precision grades up to P5. Optimized internal geometry reduces friction and heat build‑up, enabling smooth, accurate rotation at high speeds with excellent rigidity and running stability.
| Bearing Type | Single Row Deep Groove Ball Bearing |
| ISO Dimension Series | 62 Series – Light |
| Basic Designation | 626 |
| Suffix | Z (One side with steel shield) |
| Bore Diameter (d) | 6 mm |
| Outer Diameter (D) | 19 mm |
| Width (B) | 6 mm |
| Material (Races & Balls) | Chrome Steel (GCr15 / SAE 52100) |
| Precision Class | Standard / P5 Grade Available |
| Cage Material | Pressed Steel Ribbon |
| Dynamic Load Rating (Cʳ) | 4.05 kN |
| Static Load Rating (C₀ʳ) | 1.76 kN |
| Limiting Speed (Grease) | 32,000 r/min |
| Limiting Speed (Oil) | 40,000 r/min |
| Weight (approx.) | 9.5 g |
Direct replacement for:
The 626 Z features a single pressed steel shield. However, we understand different environments require different protection levels.
"For applications requiring complete isolation, we offer configurations with double shields (626ZZ) or low-friction rubber seals (626-2RS)."
The 626 Z is a Premium Miniature Deep Groove Ball Bearing engineered for high-speed precision applications. Featuring a single metal shield (Z), this metric bearing balances protection against debris with low-friction performance. With a 6mm bore, it is ideal for small motors, power tools, and precision instrumentation requiring a compact footprint.
Details
The 623 ZZ is a Premium Ultra-Thin Miniature Deep Groove Ball Bearing engineered for applications demanding minimal axial space. Featuring double metal shields (ZZ) on both sides, this metric bearing provides effective protection against dust while maintaining an exceptionally slim profile. With a 3mm bore, it is ideal for micro-motors, compact mechanisms, optical devices, and other precision instruments where radial space is available but thickness is severely constrained.
Details
The 625-ZZ Bearing For Office Automation is a Premium Miniature Deep Groove Ball Bearing engineered for reliable performance in compact, precision devices. Featuring double metal shields (ZZ) on both sides, this metric bearing provides enhanced protection against dust and contaminants while maintaining low friction torque. With a 5mm bore, it is ideal for small motors, precision instruments, office automation, and applications requiring a compact yet protected bearing solution.
Details
The 626-ZZ is a Premium Miniature Deep Groove Ball Bearing engineered for high-speed precision applications requiring enhanced contamination protection. Featuring double metal shields (ZZ) on both sides, this metric bearing provides complete guarding against dust and debris while maintaining excellent low-friction performance. With a 6mm bore, it is ideal for small motors, power tools, precision instrumentation, and any application where a compact footprint must be combined with reliable internal protection.
Details
The 624-ZZ is a Premium Ultra-Miniature Deep Groove Ball Bearing engineered for precision applications requiring exceptional compactness. Featuring double metal shields (ZZ) on both sides, this metric bearing provides complete protection against dust and contamination while maintaining low rotational friction. With a 4mm bore, it is ideal for micro-motors, precision instruments, small mechanisms, and applications where minimal space and reliable performance are paramount.
Details
The 627-ZZ is a Standard Deep Groove Ball Bearing engineered for robust and versatile performance in a wide range of mechanical applications. Featuring double metal shields (ZZ) on both sides, this metric bearing provides reliable protection against dust and contaminants while ensuring smooth, low-friction operation. With a 7mm bore, it is a common choice for electric motors, industrial fans, power tools, and various machinery requiring a durable and readily available bearing solution.
Details
The 628-ZZ is a Standard Deep Groove Ball Bearing designed for robust and durable performance in a variety of mechanical applications. Featuring double metal shields (ZZ) on both sides, this metric bearing offers reliable protection against dust and debris while ensuring smooth operation with low friction. With an 8mm bore, it is a versatile and commonly used component in electric motors, industrial equipment, power transmission systems, and other machinery requiring a dependable and readily available bearing solution.
Details
The 629-2RS is a General-Purpose Deep Groove Ball Bearing engineered for applications requiring enhanced sealing against contaminants and moisture. Featuring double rubber contact seals (2RS) on both sides, this metric bearing provides superior protection against dust, dirt, and light fluid ingress. With a 9mm bore, it is a versatile and reliable choice for electric motors, appliances, agricultural equipment, and machinery operating in potentially dirty or damp environments.
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