Brand: FAFNIR
Fafnir MUA 1 1/2 W / 1108 KR Wide Inner Ring Ball Bearing | 1.5 Inch Bore | Eccentric Locking Collar
The Fafnir MUA 1 1/2 W series bearing is engineered for demanding industrial and agricultural applications requiring robust shaft support and simplified installation. This wide inner ring ball bearing (MUA) features a deep groove geometry, optimized for high radial and moderate thrust loads. The wide inner race provides superior stability and improves shaft seating, minimizing stress concentration compared to standard width bearings. Designated with the 1108 KR suffix, this unit is supplied with an eccentric locking collar, which ensures a positive, secure grip on the shaft, particularly effective in reversing loads or high-vibration environments. Dual protective seals (usually R-Seal or equivalent) retain high-quality grease and effectively exclude contaminants, maximizing operational lifespan and reducing maintenance cycles.
Designed as a high-reliability replacement or original component, the MUA 1 1/2 W bearing ensures maximized uptime for power transmission systems, conveyors, food processing machinery, and agricultural equipment (e.g., tillers, combines). Its self-aligning capability compensates for minor initial misalignment or shaft deflection during operation, protecting the bearing integrity and extending the life of adjacent components. This Fafnir bearing provides proven performance in tough conditions, offering exceptional durability and resistance to harsh environmental factors, making it a critical asset for minimizing total cost of ownership in heavy-duty machinery.
Key Features
Wide Inner Ring (MUA designation) for increased shaft stability and reduced shaft stress.
Eccentric Locking Collar (KR) provides extremely secure and quick shaft attachment, ideal for high vibration.
Equipped with integral contact seals (R-Seals) to protect internal components from moisture and particulates.
Pre-lubricated with high-grade grease for immediate installation and long maintenance intervals.
Designed for self-alignment to accommodate mounting inaccuracies and shaft deflection.
High dynamic load capacity suitable for heavy-duty industrial and conveying applications.