UB-R4-B3 - STANDARD BEARING MEASURE (6,35 x 15,87 x 4,98 mm) B3 -- COD. ( R4-2RS - 6,35 15,87 4,98 - 6,3515,874,98 - 6,35x15,87x4,98 )

Key featuresMiniature R4 high-precision ball bearingInch size format: 6.35 x 15.87 x 4.98 mm2RS seals for dust and contamination protectionLow friction operationIdeal for precision and high-speed applications DescriptionThe UB-R4-B3 is a miniature deep groove ball bearing with inch dimensions, designed for compact and precision applications.Its size (6.35 x 15.87 x 4.98 mm) makes it suitable for mechanical systems requiring smooth rotation and high accuracy.The R4-2RS double-sealed design protects against dust, dirt and moisture while retaining lubrication for extended service life.Made from high-strength steel with precision-ground raceways, it ensures quiet operation, low vibration and consistent performance at high speeds. SpecificationsType: miniature deep groove ball bearingModel: R4 / R4-2RSDimensions: 6.35 x 15.87 x 4.98 mmStandard: inch seriesSeals: 2RS (double sealed)Material: high-strength chrome steelStructure: single rowLoad type: radial with light axial load CompatibilityEquivalent codes: R4, R4-2RS, 6.35x15.87x4.98Used in precision mechanical componentsSuitable for pulleys, rollers and compact assembliesApplications: cycling, electronics, tools, RC modelsIdeal replacement inch-series bearing