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4PCS 6905RS CB 25x42x9mm Hybrid Ceramic Si3N4 Ball Bearing Bicycle Bottom Brackets & Spares Rear wheel 6905 2RS Bearings
4PCS 6905RS CB 25x42x9mm Hybrid Ceramic Si3N4 Ball Bearing Bicycle Bottom Brackets & Spares Rear wheel 6905 2RS Bearings
Normaler Preis
$27.86 USD
Normaler Preis
$0.00 USD
Verkaufspreis
$27.86 USD
Grundpreis
pro
Verfügbarkeit für Abholungen konnte nicht geladen werden
Specifications:
Item: 6905RS CB
Structure: Deep Groove
Material: Bearing Steel Hybrid Ceramic Si3N4
Bore Dia (d): 25 mm
Outer Dia (D): 42 mm
Width (B): 9 mm
Closures: Metal Seal
Magnetic: little
Hardness: 58HRC
Corrosion Resistance: General
Clearance: C0
Grades: ABEC-7
Features:
Designed for applications requiring robust performance under load and extended service life, this stainless steel hybrid ceramic bearing delivers enhanced smoothness, corrosion resistance, and durability. It serves as a reliable core component in systems where consistent rotation and minimal maintenance are critical priorities.
✅ Advanced Hybrid Construction for High-Load Efficiency
This bearing combines silicon nitride (Si₃N₄) ceramic balls with hardened stainless steel races, creating an interface that significantly reduces friction and wear. The ceramic's extreme hardness minimizes surface deformation under load, making this design ideal for high-load, continuous-operation applications where reducing rotational drag directly impacts performance and longevity.
✅ Precision Engineered for Stable and Quiet Operation
Manufactured to high-precision tolerances, this component ensures minimal vibration and consistent rotational alignment. The result is exceptionally smooth and quiet running performance, essential for assemblies where operational noise or rotational inconsistency can affect the overall function and user experience of the system.
✅ Sealed Design for Contamination Resistance
Protected by effective rubber seals, this bearing offers a strong defense against the ingress of dust, water, and other airborne contaminants. This sealing, combined with the inherent corrosion resistance of its materials, ensures reliable operation in demanding or variable environments, protecting the bearing's precision and extending its functional lifespan.
✅ Direct Replacement for Immediate Performance Upgrade
As a pre-lubricated and sealed unit, this bearing is engineered for straightforward installation as a direct, drop-in replacement. Its standardized design allows for easy integration, providing an immediate upgrade in efficiency and reliability while simplifying system maintenance and reducing long-term wear.
This component represents a focused investment in improving the fundamental mechanics of rotation. It delivers measurable gains in operational smoothness, load-handling capability, and environmental resilience, effectively reducing the frequency of maintenance and the risk of premature failure in demanding applications.
