NSK Ball Bearing – 6303 DDU

The NSK 6303 DDU is a high-quality, single-row deep groove ball bearing engineered for smooth operation and long service life. It has a 17 mm inner diameter, 47 mm outer diameter, and 14 mm width. The “DDU” suffix indicates rubber contact seals on both sides, providing excellent protection against dust, moisture, and lubricant leakage. This sealed design helps maintain consistent lubrication and reduces maintenance needs, even in harsh environments.

Built with high-grade steel and precision manufacturing, the bearing delivers quiet, low-friction performance and outstanding resistance to wear. With a dynamic load capacity of approximately 13,600 N and a static load capacity of around 6,650 N, it handles both radial and axial loads efficiently. Suitable for electric motors, gearboxes, pumps, and general industrial equipment, the NSK 6303 DDU operates smoothly at speeds up to around 11,000 rpm (with grease lubrication).

Key Features:

Dimensions: 17 mm (ID) × 47 mm (OD) × 14 mm (W)

Rubber seals on both sides (DDU) for superior protection

High-grade steel construction for strength and durability

Low-friction, long-life design with reduced noise and vibration

Handles both radial and axial loads

Ideal for electric motors, conveyors, and machinery requiring sealed bearings