SKF 625 ZZ 5x16x5 mm Deep Groove Ball Bearing

Compact Ball Bearing for Precision & Light-Duty Applications

Miniature Sealed Bearing — Reliable Rotation in Confined Spaces

The SKF 625 ZZ is a compact deep groove ball bearing with internal diameter 5 mm, outer diameter 16 mm, and width 5 mm. Its ZZ metal shield design protects internal components against dust and debris while retaining lubrication — making it ideal for applications with limited housing space but requiring reliable, smooth, and low-maintenance operation. Thanks to its sealed construction, the bearing delivers stable, low-friction rotation and dependable shaft support even in demanding or contaminated environments.

Benefits & Typical Use Cases

Durable, Low-Noise Bearing Suitable for Small Motors and Gearboxes

• Compact size for tight installations — Its 5x16x5 mm dimensions allow use in small electric motors, micro-gearboxes, pumps, fans, household appliances, and precision devices where space is at a premium.

• Sealed metal shields (ZZ) for contamination protection — Metal shields on both sides prevent dust, metal particles, or moisture ingress, safeguarding the balls and races while retaining lubricant for long service life.

• Efficient load handling for light to moderate loads — Deep groove geometry enables reliable support for radial loads and moderate axial loads, ensuring smooth rotation and stable performance in light-duty applications.

• Low noise and minimal maintenance — Hardened steel components and tight factory lubrication contribute to lower friction, quiet operation, and reduced service intervals — advantageous in appliances, small machinery, or precision devices.

• Ready-to-install bearing unit — Standard sizing and sealed design allow quick integration into existing shafts or housings, simplifying replacement, repairs, or manufacturing setups.

Detailed Product Description

The SKF 625 ZZ 5x16x5 mm deep groove ball bearing delivers a compact yet reliable solution for small-scale mechanical applications where space constraints and performance demands meet. Its deep groove design ensures efficient load distribution under radial and modest axial loads, allowing for consistent, smooth shaft rotation even under continuous operation.

Metal shields on both sides (ZZ) provide robust protection against external contaminants — dust, metal shavings, moisture — while preserving internal lubrication. This sealed configuration significantly reduces wear and extends the service life, making the bearing suitable for industrial and domestic devices exposed to environmental contaminants or particles.

Despite its diminutive size, the bearing offers stable rotation with low noise and minimal vibration — an important factor for devices requiring quiet, precise, and smooth operation such as small motors, pumps, fans, precision tools, or compact gearboxes. The hardened steel balls and races ensure durability, while the compact dimensions allow installation in devices with limited space.

SKF 625 ZZ is also ideal for retrofit and maintenance scenarios: standard sizing enables direct replacement without mechanical modifications, reducing downtime and simplifying inventory management for companies and workshops. Whether used in small electric motors, mini-gearboxes, home appliances, or precision equipment — this bearing balances compactness, reliability, and ease of integration.

FAQ - Frequently Asked Questions

Q: Is SKF 625 ZZ suitable for small electric motors or micro-gearboxes?
A: Yes — its compact size, sealed design, and adequate load capacity make it ideal for small motors, gearboxes, pumps, fans, and precision devices.

Q: Does the metal shield (ZZ) protect the bearing in dusty or polluted environments?
A: Yes — the dual metal shields prevent dust, debris, or moisture from entering, keeping lubrication intact and prolonging bearing life.

Q: Can this bearing handle axial and radial loads?
A: It is designed primarily for radial loads and light axial loads, which makes it suitable for small motors, light-duty gearboxes, and similar applications.

Q: Is the bearing ready to install out of the box?
A: Yes — standard dimensions and sealed construction allow direct mounting in shafts or housings without additional adaptations.

Q: Does SKF 625 ZZ support high rotation speeds?
A: Yes — due to its compact design, deep groove geometry, and lubrication, the bearing performs well under moderate to high speeds typical for small motors and fans.