6306/C3 ISB SING deep groove ball bearing

ISB 6306 C3 Deep Groove Ball Bearing (SING)

The ISB 6306 C3 is a reinforced single-row deep groove ball bearing from the high-performance 6300 series. Featuring larger rolling elements and more robust rings than the 6000 or 6200 series, it is designed to handle significantly higher radial loads. Its open-type design combined with increased C3 internal clearance makes it the perfect choice for high-speed applications where thermal expansion of the shaft is expected.

Application

• Electric Motors: C3 clearance prevents ball seizing during rotor thermal expansion.
• Industrial Gearboxes: Ideal for oil-bath environments requiring high load ratings and low friction.
• Pumps and Fans: Reliable shaft guidance at high rotational speeds.
• Agricultural Machinery: Drive systems requiring heavy-duty and overload-resistant components.
• Mechanical Equipment: Any application where the bearing operates within a closed, lubricated housing.

Technical Specification

• Manufacturer: ISB (Italy)
• Designation: 6306 C3
• Type: Deep groove ball bearing (Open)
• Internal Clearance: C3 – radial clearance greater than normal.
• Series: 6300 – Enhanced load capacity.
• Packaging: SING (Single unit).

Note: Standard dimensions for the 6306 are 30 mm (Bore) × 72 mm (OD) × 19 mm (Width).

Features and Benefits

• Enhanced Load Rating: The robust 6300 series architecture supports forces that lighter series cannot handle.
• Thermal Stability: C3 class ensures reliable performance at elevated operating temperatures.
• Minimized Friction: Open configuration without contact seals allows for peak limiting speeds.
• Quiet Performance: ISB’s precision-ground raceways ensure minimal vibration and reduced acoustic levels.
• ISB Quality Standards: Manufactured from high-purity steel to resist material fatigue and wear.

Why Choose This Product

The ISB 6306 C3 bearing is a cornerstone of reliability for demanding mechanical systems. By selecting the C3 clearance version, you ensure that your equipment remains operational even under significant thermal stress. ISB combines European quality control with superior performance parameters, resulting in fewer maintenance intervals and a longer service life for your industrial machinery.