Four pieces of S609 9x24x7 mm stainless steel hybrid ceramic ball bearings with 2RS seals and ABEC7 precision. Key benefits - Precision for smooth operation: ABEC7 class ensures consistent, low-friction performance - Hybrid ceramic technology: ceramic balls paired with steel components reduce friction and wear, improving efficiency and longevity - Double sealing for protection: 2RS seals help keep dust, dirt, and moisture out to extend service life - Durable materials: stainless steel construction provides corrosion resistance in varied riding conditions - Size-specific fit: S609 9x24x7 mm bearings suitable for equipment that accepts 9x24x7 mm bearings Key attributes - Model: S609 - Quantity: 4 pieces - Bearing type: Stainless steel hybrid ceramic ball bearings - Size: 9x24x7 mm - Seals: 2RS (dual rubber seals) - Precision: ABEC7 (CB ABEC7 designation) Compatibility and suitability - Designed for bicycle bearings and related small precision applications that require a 9x24x7 mm bearing - Suitable for use in components and assemblies that specify S609 size bearings Applications - Replacing worn bearings in bicycle wheel hubs (front or rear) that use 9x24x7 mm bearings - Upgrading or servicing small bicycle components or assemblies that require 9x24x7 mm hybrid ceramic bearings - Use in other small mechanical devices or DIY projects that require the 9x24x7 mm bearing size and benefit from the low friction and durability of ceramic balls with steel races