The 6803ZZ deep groove ball bearing is a compact, high-performance component designed for small to medium-sized mechanical transmission systems. With dimensions of 17mm inner diameter, 26mm outer diameter, and 5mm thickness, this bearing offers a space-efficient solution for equipment with limited installation space while ensuring stable support for efficient operation.
Widely utilized in industrial automation equipment, precision instruments, small motors, medical devices, and office equipment, this bearing plays a crucial role in ensuring precise transmission and reliable performance of core equipment components.
High-precision steel balls serve as rolling elements, manufactured through multiple precision grinding processes to achieve minimal surface roughness and tight dimensional tolerances. The deep groove raceways of the inner and outer rings are optimally designed to perfectly match the steel balls, enabling efficient radial load distribution and accommodating certain axial loads.
This multi-point contact design ensures smooth force transmission, reduces localized wear, and guarantees stable, low-noise bearing operation.
The "ZZ" designation indicates double-sided metal dust covers that form a robust protective barrier. These precision-stamped metal shields effectively prevent dust, impurities, and moisture from entering the bearing while retaining the pre-filled high-performance grease.
This sealing mechanism extends lubrication intervals, reduces maintenance requirements, and significantly prolongs bearing service life.
Advanced manufacturing techniques and premium materials provide an exceptionally low friction coefficient, enabling stable operation under high-speed conditions. Ideal for small high-speed motors, this bearing minimizes heat generation and reduces equipment failure risks associated with overheating.
Despite its compact size, the optimized structural design and high-strength materials deliver excellent radial load capacity and bidirectional axial load resistance. This ensures continuous, stable operation in small to medium transmission mechanisms.
Precision manufacturing ensures optimal component fit, resulting in stable steel ball trajectories within the raceways. This significantly reduces vibration and noise, making the bearing suitable for precision instruments requiring quiet operation and minimal environmental interference.
| Dimension Type | Value |
|---|---|
| Inner Diameter (d) | 17mm |
| Outer Diameter (D) | 26mm |
| Thickness (B) | 5mm |
Factory-pre-filled with high-performance grease requiring minimal maintenance in normal conditions. In harsh environments (high temperature, humidity, or heavy dust), regularly inspect grease condition and replace if dried, discolored, or contaminated.
Establish routine visual inspections to check dust cover integrity and identify any damage or deformation. Monitor bearing vibration and temperature during operation. Immediate shutdown is required if abnormal vibration increases or temperature exceeds normal operating range (typically 10-20°C above ambient temperature).
Ensure clean installation environment to prevent foreign object contamination. Use appropriate tools and follow correct installation procedures to maintain proper fit between bearing, shaft, and housing. Avoid impact damage during installation to preserve bearing performance and longevity.