Koyo Ball Bearing – 6301-ZZ

The Koyo 6301-ZZ is a high-quality, single-row deep groove ball bearing designed for smooth performance and long-lasting reliability. With dimensions of 12 mm inner diameter, 37 mm outer diameter, and 12 mm width, it is suitable for a wide range of mechanical and industrial applications. The “ZZ” designation indicates that the bearing has metal shields on both sides, providing effective protection against dust and debris while retaining lubricant for extended service life.

Built from precision-engineered steel, this bearing offers excellent load-carrying capacity with a dynamic load rating of approximately 12.1 kN and a static load rating of around 4.2 kN. It operates efficiently at speeds up to 20,000 rpm with grease lubrication, making it ideal for high-speed machinery such as electric motors, pumps, gearboxes, and household appliances. Lightweight at around 0.06 kg, it combines low friction, durability, and quiet operation for dependable performance.

Key Features:

Dimensions: 12 mm (ID) × 37 mm (OD) × 12 mm (W)

Double metal shields (ZZ) for dust protection and grease retention

Dynamic load capacity: ~12.1 kN; static load capacity: ~4.2 kN

High-speed performance up to ~20,000 rpm

Precision steel construction ensures long life and low vibration

Ideal for motors, gearboxes, and general industrial equipment