SKF 6307/C3 Deep Groove Ball Bearing 35x80x21 mm — AI-Powered Review

Performance & Advantages

• Excellent radial and light axial load capacity thanks to deep groove bearing design.

• Higher internal clearance (C3) helps accommodate thermal expansion, misalignment, and high operating temperatures without seizing.

• Open design (no seals) reduces friction, improves heat dissipation, but requires proper lubrication.

• SKF brand - quality, reliability, consistent performance.

Typical Applications

• Electric motors, pumps, fans

• Gearboxes, industrial drives

• Machinery with high rotational speeds

• Equipment where thermal variations occur

5. FAQ - Frequently Asked Questions

Q: What does “C3” mean in SKF 6307/C3?
A: C3 indicates the bearing has greater internal radial clearance than standard, allowing for better performance when temperature rises or when higher precision under load is required.

Q: Is this bearing sealed or open?
A: This is an open bearing — no seals or shields are included. It offers lower friction and better cooling, but must be regularly lubricated and protected from contamination.

Q: What RPM can SKF 6307/C3 handle?
A: At appropriate lubrication and load, it supports high rotational speeds typical for deep groove ball bearings of its size. Exact rpm depends on installation, load, and lubrication.

Q: What loads can it handle?
A: Designed for radial loads primarily, but can also support light axial loads. Deep groove profile helps with axial load in both directions.

Q: How do I ensure this is the correct bearing for my machine?
A: Confirm the dimensions (35x80x21 mm), confirm requirement for internal clearance C3, check if you need an open bearing vs sealed. Ensure the shaft and housing tolerance match SKF recommendations.

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