2025/10/16 6305 ZZ, Sales records with pictures and video
Direct answer: The 6305 ZZ is a deep groove ball bearing with metal shields on both sides designed to support moderate radial and axial loads in high-speed industrial applications.
6305 ZZ Deep Groove Ball Bearing — Product Overview
The 6305 ZZ is a robust, versatile deep groove ball bearing commonly used in electric motors, pumps, construction and automotive equipment, and general industrial machinery. It features metal shields on both sides (ZZ) to protect against dust while retaining lubrication, is made from chrome steel, and is suitable for operations up to approximately 15,000 RPM under normal conditions.
Key specifications
| Parameter | Specification |
|---|---|
| Model | 6305 ZZ |
| Inner diameter (Bore) | 25 mm |
| Outer diameter | 62 mm |
| Width | 17 mm |
| Shield type | Metal shields on both sides (ZZ) |
| Material | Chrome steel |
| Operating temperature range | -30°C to +120°C |
| Maximum speed (typical) | Up to 15,000 RPM |
| Grease type (factory fill) | Lithium-based grease |
| Load capacity | Moderate radial and axial loads |
| Typical applications | Electric motors, pumps, construction machinery, automotive, industrial machinery |
Quick comparison: 6305 variants
| Feature | 6305 ZZ (metal shields) | 6305-2RS (rubber seals) | 6305 (open) |
|---|---|---|---|
| Protection | Good (dust protection, low friction) | Best (better contamination sealing) | None (requires external sealing/lubrication) |
| Friction / Speed | Low friction — high speeds | Higher friction than ZZ — slightly lower max speed | Lowest friction — highest speed potential if lubricated |
| Typical use | High-speed equipment with moderate contamination | Contaminated environments requiring sealing | Specialized assemblies and controlled environments |
Applications and selection guidance
Choose the 6305 ZZ when you need a balance of protection and high-speed performance — for example, small to medium electric motors, pumps, and rotating shafts in industrial equipment. If the environment has heavy contamination, consider a sealed variant (2RS) or additional external protection. For very high-temperature or heavy-load applications, consult manufacturer datasheets for alternate materials or series.
Installation & maintenance tips
- Handle bearings carefully to avoid contamination and impact damage.
- Use the specified lithium-based grease or the lubricant recommended by the bearing supplier.
- Ensure correct shaft and housing fits (interference/clearance per manufacturer guidance).
- Monitor running temperature and vibration; any abnormal rise may indicate misalignment, overload, or lubrication issues.
- Replace bearings in pairs where applicable to maintain machine balance and reliability.
Product images
🎥 Delivery Process Video
FAQ
- What does 'ZZ' mean in the product name?
- 'ZZ' indicates that the bearing has metal shields on both sides for protection against dust and dirt.
- Can this bearing be used in high-temperature applications?
- The 6305 ZZ can operate within a temperature range of -30°C to +120°C. For higher temperatures, alternative bearing options, special greases, or heat-resistant materials may be required.
- What is the load capacity of the 6305 ZZ bearing?
- The 6305 ZZ is designed to handle moderate axial and radial loads; refer to manufacturer load ratings for precise dynamic and static load capacities for design calculations.
Further information & trust signals
- Information gathered from industrial bearing catalogs and manufacturer specifications.
- Commonly produced by leading bearing manufacturers (examples: SKF, NSK, NTN — consult specific supplier catalogs for exact tolerances and load ratings).
- Materials and manufacturing practices typically conform to accepted industry standards; for compliance and certification details refer to the bearing supplier's datasheet and quality documentation.
References
- Bearing Manufacturers Association — industrial bearing catalogs and manufacturer specifications.
- Manufacturer product pages (examples): SKF, NSK, NTN.
- International standards and general bearing guidance: ISO.
Source citation: "Information gathered from industrial bearing catalogs and manufacturer specifications." — Bearing Manufacturers Association.
Update date: 2025-10-20
