1. Product Introduction

The 6203-ZZ is a single-row deep groove ball bearing fitted with double-sided ZZ pressed steel shields, built for medium-speed duty in dry, dust-laden environments where dependable dust protection and quiet running are essential. It is produced from high-purity GCr15 bearing steel, hardened through controlled quenching and tempering, and finished with precision-ground raceways and steel balls. The metal shields block dust, fine particles and fibres from reaching the raceway while holding the factory grease in place, so rotation stays smooth, quiet and consistent throughout a long service life.

6203-ZZ · GCr15 bearing steel · double ZZ metal shields · 17x40x12mm

Compact and dependable, the 6203-ZZ is a core rotating component for dry-running, dust-exposed motor-driven equipment, and is widely chosen for ceiling fan motors, where steady shaft support and low noise are critical to a comfortable living environment.

2. Product Features

• Dust-proof shield protection: Double-sided ZZ metal shields isolate dust, fibres and fine particles, and retain the lubricating grease, reducing the risk of dry running and premature wear in dusty surroundings.
• Low noise & smooth rotation: Precision grinding of raceways and balls lowers running friction and vibration, keeping noise at the Z3V3 grade for consistently quiet operation.
• High precision: Manufactured to P6 precision grade, delivering accurate dimensional tolerance and repeatable running performance.
• Composite load capacity: Carries both radial load and moderate bidirectional axial load with even stress distribution and strong stability.
• Universal interchangeability: Standard 17x40x12mm dimensions with high interchangeability, easy mounting and low maintenance.

3. Product Advantages

Every 6203-ZZ bearing is inspected strictly against international industry standards. Precision machining combined with full inspection gives the product stable quality, high batch consistency and strong interchangeability. Factory-direct supply supports customized precision and packaging, with ample stock and fast delivery, providing a dependable shielded bearing solution for customers worldwide.

4. Product Technical Parameters

5. Product Applications

The 6203-ZZ shielded deep groove ball bearing is widely used in dry, dusty, medium-speed rotating assemblies. Its primary and most typical application is ceiling fan motors, where the bearing supports the rotor shaft under continuous rotation while its metal shields keep household dust and fibres away from the raceway and the Z3V3 low-noise grade keeps the fan running quietly through years of daily use. Its dust-proof, low-noise and low-maintenance characteristics also suit other dry-running motor-driven devices that require stable, long-term shaft support.

Typical application · ceiling fan motor

6. About Us

Ningbo Kent bearing company was established in 2003 and is one of the leading bearing manufacturers and exporters in China. Kent specializes in the design and production of high precision, high speed and low noise groove ball bearings and pillow block bearings. At present, the Corporation has more than 1,000 employees, a fixed assets of 2 billion yuan, and produces 250 million sets of bearings annually. The Corporation's products are widely used in more than 50 countries and regions under 2 independent brands, namely "BUGAO" and "NBKT". In addition, we participate in major professional exhibitions at home and abroad every year.