6306-2Z/C3 SING ISB deep groove ball bearing

ISB 6306 ZZ/C3 Deep Groove Ball Bearing (SING)

The ISB 6306 ZZ/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 and more robust rings, offering significantly higher dynamic load ratings than lighter series. Equipped with dual metal shields (ZZ), it provides non-contact protection against contaminants, allowing for maximum rotational speeds with minimal heat generation. The increased C3 internal clearance makes it ideal for applications subject to thermal expansion of the shaft.

Application

• Electric Motors: C3 clearance prevents ball seizing during rotor thermal expansion.
• High-Speed Fans: ZZ shields do not impede rotation, allowing for smooth, friction-free performance.
• Industrial Pumps: Stable handling of large radial loads.
• Gearboxes and Drives: Precision shaft guidance in demanding mechanical systems.
• Agricultural Equipment: Proven construction for heavy-duty mechanical units.

Technical Specification

• Manufacturer: ISB (Italy)
• Designation: 6306 ZZ/C3
• Type: Single-row deep groove ball bearing.
• Sealing: ZZ – non-contact metal shields on both sides.
• Internal Clearance: C3 – radial clearance greater than normal.
• Series: 6300 (Reinforced load capacity).

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

Features and Benefits

• High-Speed Efficiency: Absence of contact friction on the seals enables operation at peak limiting speeds.
• Thermal Stability: C3 class eliminates risk of failure due to temperature gradients between bearing rings.
• Robust 6300 Architecture: Capable of supporting much higher forces than light series alternatives.
• ZZ Protection: Effective barrier against solid debris without increasing the friction torque.
• Maintenance-Free: Factory pre-greased for the entire service life.

Why Choose This Product

The ISB 6306 ZZ/C3 bearing is a professional choice for users prioritizing durability under demanding conditions. By combining metal shields with increased assembly clearance, this product excels in thermal stress environments. Choosing ISB means investing in European engineering that significantly extends the operational lifespan of your equipment and reduces maintenance costs.