6305-2RS/C3 SING ISB deep groove ball bearing

ISB 6305 2RS/C3 Deep Groove Ball Bearing (SING)

The ISB 6305 2RS/C3 is a high-performance single-row deep groove ball bearing with a reinforced design, engineered for durability in demanding operating conditions. As a member of the 6300 series, it offers significantly higher dynamic load ratings than the 6000 or 6200 series for the same shaft diameter. Featuring contact rubber seals (2RS) and increased C3 internal clearance, this bearing ensures stable operation at high speeds and temperatures, effectively protecting the mechanism from external contaminants.

Application

• Electric Motors: C3 clearance compensates for shaft thermal expansion, preventing seizure.
• Industrial Pumps and Fans: NBR seals protect the internals from moisture and vapors.
• Heavy-Duty Power Tools: High resistance to shocks and radial overloads.
• Agricultural Machinery: Effective protection against dust and mud thanks to contact seals.
• Drive Systems: Stable shaft guidance in medium-load gearboxes.

Technical Specification

• Manufacturer: ISB (Italy)
• Designation: 6305 2RS/C3
• Type: Single-row deep groove ball bearing
• Sealing: 2RS – dual contact rubber seals (NBR).
• Internal Clearance: C3 – radial clearance greater than normal.
• Maintenance: Pre-lubricated for life (maintenance-free).

Note: Standard dimensions for the 6305 are 25 mm (Bore) × 62 mm (OD) × 17 mm (Width).

Features and Benefits

• Reinforced 6300 Capacity: Larger rolling elements support forces that would prematurely wear out lighter series bearings.
• Total Protection (2RS): Prevents grease leakage and ingress of dirt, drastically extending service life.
• Thermal Tolerance: C3 class ensures reliable performance at elevated operating temperatures.
• Quiet Performance: ISB’s precision-ground raceways ensure minimal vibration and reduced noise levels.
• SING Packaging: Guarantees delivery in original, single-unit factory packaging.

Why Choose This Product

The ISB 6305 2RS/C3 bearing is a professional choice for maintenance departments and OEM manufacturers. By combining the robust construction of the 6300 series with ISB's European quality standards, this product ensures maximum uptime. Choosing this bearing is an investment in mechanical safety and a reduction in costs associated with unscheduled maintenance downtime.