Key benefits and why you need it radial load capacity: designed to support strong radial forces in demanding equipment Good speed performance: suitable for applications where speed is important Axial load tolerance: can withstand certain axial loads in addition to radial loads Long service life: seals or dust covers prevent lubricant loss and protect against contaminants Flexible configurations: available in singlerow and doublerow designs, with different inner ring features Efficient roller guidance: a cage evenly spaces rollers to minimize friction and prevent contact Main structure at a glance Components: outer ring, inner ring, cylindrical rollers, and a cage Optional features: seals or dust covers on some models Raceways and rollers: inner and outer ring raceways are cylindrical; rollers are cylindrical and run parallel to the raceways Cage function: evenly separates the rollers, reducing friction and collision Seals: help extend service life by keeping lubricant in and impurities out Common types Singlerow cylindrical roller bearings NU type: inner ring has no ribs NJ type: inner ring has a single rib Doublerow cylindrical roller bearings: higher radial load capacity, suitable for heavy machinery Variants: some models include cages; others use full complement rollers (no cage) Use scenarios and applications Machine tool spindles and turning centers requiring reliable radial support with good speed performance Industrial gearboxes and heavy machinery where strong radial loading is a key consideration Rolling mills, conveyors, pumps, and fans operating in environments with significant radial loads and the need for durable, longlife bearings Notes for selection and compatibility Choose NU or NJ based on the presence or absence of inner ring ribs Choose singlerow versus doublerow according to required radial load capacity and space constraints Consider seals or dust covers in dusty or lubricantsensitive environments to extend service life This description preserves the original product's scope and function, detailing core definition, structure, and common variants while presenting clear, customerfocused benefits and practical use cases.