6307 2RS C4 SNR 35x80x21 - Ball Bearing

Main Description

The 6307 2RS C4 SNR 35x80x21 is a robust deep groove ball bearing designed for heavy-duty industrial environments and machinery requiring high load capacity, stability and long service life. With dimensions 35x80x21 mm, this bearing suits medium and large mechanical assemblies, including electric motors, pumps, gearboxes, conveyors and general production equipment.

The double rubber sealing 2RS protects the bearing from dust, moisture and contamination, ensuring clean lubrication and reduced wear during continuous operation. The C4 internal clearance provides additional thermal and vibrational tolerance, making the bearing especially effective in high-speed or high-temperature applications. These features deliver smooth rotation, reduced friction and extended operational lifespan, even under increased dynamic loads.

Manufactured by SNR, the bearing is produced from high-grade steel with precise raceway geometry, enhancing stability and limiting the risk of early failure. Thanks to its durable structure, the 6307 2RS C4 SNR performs reliably as part of bearing units or bearing housings across a wide range of industrial applications.

Key Advantages

• reliable deep groove ball bearing for industrial machinery

• 2RS sealing for protection against dust, moisture and contaminants

• C4 clearance for increased thermal expansion and vibration resistance

• long service life and low friction during continuous operation

• suitable for electric motors, pumps, gearboxes, conveyors and production systems

FAQ - Frequently Asked Questions

Q: What are the dimensions of the 6307 2RS C4 SNR bearing?
A: Inner diameter 35 mm, outer diameter 80 mm, width 21 mm.

Q: What does the “2RS” sealing mean?
A: It indicates double rubber seals on both sides, protecting the bearing from contaminants.

Q: Why is C4 clearance important?
A: It allows for higher temperature tolerance, reduced friction and improved performance under vibration and dynamic loads.

Q: Is this bearing suitable for high-speed applications?
A: Yes — the C4 clearance and low-friction geometry support high-speed and demanding industrial operation.

Q: What industries commonly use this bearing?
A: Manufacturing plants, automation systems, pumps, motors, conveyors and general industrial machinery.