If you require a compact, reliable, and shielded miniature bearing such as 605 ZZ KG 5x14x5, we hold it in stock at our warehouse and shop: Lublin, ul. Smoluchowskiego 1, building 4. We offer 24h delivery for business clients. Contact us now to verify availability and place your order — swift dispatch assured.
The 605 ZZ KG 5x14x5 is a miniature deep groove ball bearing featuring double metal shields (ZZ) that protect its internal components while allowing high-speed, low-friction performance. As part of the KG product line, this bearing is designed for compact assemblies where reliability, small size, and protection against dust are essential.
This small bearing is ideal for a wide variety of lightweight mechanical and electromechanical systems. Common use cases include:
Small DC/BLDC motors and actuators
Miniature fans and blowers
Precision instruments and measurement devices
Robotics joints and small gearboxes
Consumer electronics and appliances
Model engineering, drones, and hobby mechanisms
Because of its 5 mm bore, 14 mm outer diameter, and 5 mm width, it fits into tight mechanical spaces and is often used where standard miniature components are required. Its double shielding provides protection from dust and contaminants, making it suitable for environments with moderate exposure to debris.
Double metal shields (ZZ): provides non-contact protection from dust and fine particles without the drag of contact seals.
Low friction & quiet operation: deep groove geometry allows smooth rotation even at high speeds while maintaining minimal vibration and noise.
Compact & robust design: the small footprint (5x14x5 mm) fits into miniaturized assemblies, while robust steel construction ensures durability.
Pre-lubricated & maintenance-friendly: factory-applied grease means the bearing is ready to install; the shielded design helps retain lubrication over time.
Versatile loading: primarily for radial loads, but capable of moderate axial loads in both directions under proper conditions.
Broad interchangeability: the 605 ZZ dimension is a recognized standard, so it is often cross-referenced among bearing suppliers and brands (e.g., KG 605-ZZ listing).
Because the double-shielded design avoids physical contact with the shields, speed capability is maintained at a high level. Compared to open bearings (without shields), the 605 ZZ KG offers enhanced protection with minimal compromise in speed.
| Parameter | Value / Note |
|---|---|
| Bearing Type | Deep groove ball bearing, single row |
| Model / Series | 605 ZZ KG |
| Bore (d) | 5 mm |
| Outer Diameter (D) | 14 mm |
| Width (B) | 5 mm |
| Shield Type | ZZ — metal shields on both sides |
| Material | High-grade bearing steel (e.g. GCr15 / equivalent) |
| Lubrication | Factory-filled grease or light oil (maintenance-limited) |
| Typical Mass | ~ 0.004 kg (4 g) per piece |
| Speed Capability | High speeds typical for miniature bearings (depending on application and lubrication) |
| Load Capacity | Suitable for light to moderate radial loads, limited axial load capacity |
| Operating Temperature Range | Approx. -30 °C to +120 °C (depending on grease and shield limits) |
| Internal Clearance | Standard clearance (normal) version typical of miniature bearings |
According to generic bearing catalogs, the 605 ZZ (5x14x5 mm) configuration is a standard miniature dimension found in many bearing databases and cross-reference systems. The double-shield variant (ZZ) is especially popular for small drives or rotary assemblies where modest protection is needed without sacrificing rotation speed.
When integrating into a design, confirm shaft and housing tolerances, proper pre-load or clearance, and alignment to ensure optimal life and performance. Also ensure that the lubrication is compatible with the anticipated temperature and environment.
1. What does “ZZ” mean in 605 ZZ KG?
“ZZ” indicates that the bearing has metal shields on both sides (double-shielded). These are non-contact shields that protect against dust and fine particles but allow the bearing to spin freely.
2. Is this bearing ready to use or requires lubrication?
It typically comes pre-lubricated from the factory. The shielding helps retain lubricant, so frequent re-lubrication is usually not necessary unless used under harsh conditions.
3. Can it be used at high rotational speeds?
Yes — due to its minimal shielding drag and deep groove geometry, it supports high RPMs appropriate for miniature bearings, assuming suitable lubrication, alignment, and load conditions.
4. Is 605 ZZ KG interchangeable with other 605 ZZ bearings?
Generally yes, provided the dimensions (5x14x5 mm) match and the shield type is acceptable. Many suppliers list “605 ZZ” bearing references; for instance, KG itself markets a 5x14x5 double-shield version.
5. Is this bearing suitable for wet or very dusty environments?
It offers some protection due to its shields, but it is not fully sealed. In noticeably wet, water-spray, or highly contaminated environments, a sealed (e.g. 2RS) or stainless version may be more appropriate.