6309-2RS/C3 SING ISB deep groove ball bearing

ISB 6309 2RS/C3 Deep Groove Ball Bearing (SING)

The ISB 6309 2RS/C3 is a high-performance single-row deep groove ball bearing with a reinforced design. As part of the 6300 series, it features larger rolling elements, providing significantly higher dynamic load ratings compared to the 6200 series. Equipped with contact rubber seals (2RS), it offers complete protection against dust and moisture. The increased C3 internal clearance ensures reliable operation at elevated temperatures, preventing seizure caused by the thermal expansion of the shaft.

Application

• Electric Motors: C3 clearance compensates for rotor thermal expansion during continuous load.
• Industrial Pumps and Fans: NBR seals provide an effective barrier against moisture and vapor.
• Heavy Machinery Gearboxes: Stable handling of large radial loads in demanding drive systems.
• Agricultural Equipment: High resistance to harsh field conditions (dust, mud, and debris).
• Production Lines: A component dedicated to systems requiring long maintenance-free intervals.

Technical Specification

• Manufacturer: ISB (Italy)
• Designation: 6309 2RS/C3
• Type: Single-row deep groove ball bearing
• Sealing: 2RS – dual contact rubber seals (NBR).
• Internal Clearance: C3 – radial clearance greater than normal.
• Series: 6300 (Reinforced load capacity).

Note: Standard dimensions for the 6309 are 45 mm (Bore) × 100 mm (OD) × 25 mm (Width).

Features and Benefits

• Reinforced Load Rating: Robust architecture designed to withstand forces beyond the capability of light series bearings.
• Total Protection: 2RS seals prevent grease leakage and keep raceways free from grit.
• Thermal Stability: C3 class ensures reliable performance at high rotational speeds and heat levels.
• ISB Quality: Precision-ground raceways ensure minimal vibration and reduced acoustic noise.
• SING Packaging: Guarantees delivery in original, single-unit factory packaging.

Why Choose This Product

The ISB 6309 2RS/C3 bearing is the ultimate choice for industrial systems where reliability is paramount. When standard bearings struggle with high loads or thermal expansion, this model provides the necessary safety margin. By choosing ISB, you invest in high-end European engineering that reduces operational costs and ensures the smooth performance of your heavy-duty equipment.