Brand: FAFNIR
FAFNIR B 544 Wide Inner Ring Ball Bearing - 2-1/4 Inch Bore, R3 Triple Lip Seal, High-Capacity Insert
The FAFNIR B 544 is a premium wide inner ring (WIR) ball bearing designed specifically for heavy-duty industrial and agricultural applications where shaft misalignment and contaminant ingress are critical concerns. Featuring a 2-1/4 inch bore and secured via reliable dual set screws for positive shaft retention, the B 544 minimizes vibrational stress and slippage. Its robust geometry utilizes deeper raceways to handle higher radial and moderate thrust loads (Cr: 45 kN), while the specialized heat-treated steel ensures superior fatigue life, dramatically extending maintenance cycles in demanding operating environments.
Engineered for exceptional longevity, the B 544 incorporates FAFNIR's signature R3 triple-lip seal design. This advanced sealing architecture provides three distinct barriers against moisture, dust, and particulate matter, while simultaneously retaining the high-quality synthetic grease pre-packed within the unit. Choosing the B 544 reduces the total cost of ownership (TCO) by decreasing premature bearing failures, optimizing uptime in critical material handling, conveyor systems, and agricultural machinery where bearing replacement downtime is costly. This bearing is a direct, high-performance replacement for standard 200 series inserts.
Key Features
Wide Inner Ring (WIR) design for enhanced shaft support and stability, reducing misalignment risk.
Integrated R3 Triple Lip Contact Seals ensure superior protection against harsh contaminants (dust, water, debris).
Dual set screw locking system provides strong, positive retention on the shaft, minimizing creep and wear.
Optimized internal geometry allows for higher static and dynamic load handling compared to standard industrial inserts.
Pre-lubricated with high-performance, extended-life industrial grease, reducing immediate maintenance needs.
Phosphated steel inner rings prevent corrosion and enhance friction fit longevity.
