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4PCs For Bicycle Bottom Bracket Deep Groove Ball Bearing ABEC-7 18287 2RS 18X28X7 mm Contains 12268~173110 2RS Multiple Models

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Features:**Engineered Durability and Contamination Resistance**As a cornerstone


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Features:

**Engineered Durability and Contamination Resistance**

As a cornerstone for reliable rotary motion, this ball bearing is built to last. The use of GCr15 bearing steel provides a robust foundation that stands up to continuous use and stress. Protective rubber seals (RS) are fitted to defend the internal rolling elements from harmful pollutants, ensuring consistent functionality and a prolonged service life, even in less-than-ideal environments.

**Precision and Universal Fit**

This component is a versatile asset for any maintenance kit or manufacturing process. Its common size allows for easy interchangeability in a multitude of applications, from power tools to automotive systems. Manufactured to the ABEC-7 standard, it ensures precise tolerances for high-speed operation, and the C0 clearance provides a versatile fit suitable for most general-purpose requirements.

**Ready-to-Install Convenience**

The bearing is supplied pre-greased, allowing for out-of-the-box installation without any additional preparation. The sealed design is optimized to maintain lubricant integrity, thereby reducing the need for frequent re-lubrication and minimizing downtime. This user-friendly approach makes it a practical and economical choice for upgrades and repairs.

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TECHNICAL SPECS
Item: 18287S
Structure: Deep Groove
Material: Bearing Steel
Ball Material: Bearing steel
Bore Dia (d): 18 mm
Outer Dia (D): 28 mm
Width (B):7mm
Closures: Metal Seal
Lubrication: Grease
Magnetic: little
Hardness: 58HRC
Corrosion Resistance: General
Clearance: C0
Grades: ABEC-7

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