Application ranges of N, NU, and NJ bearings

I. Different structures: 1. N-type: The inner ring has double flanges and is inseparable from the rollers; the outer ring has no flanges and can fall off freely from both sides；   2. NU type: The outer ring has double flanges that are inseparable from the rollers, while the inner ring lacks flanges and can fall off freely from both sides ；   3. NF type: The inner ring has double flanges and is inseparable from the rollers; the outer ring has a single flange and can only detach freely from one side ；   4. NJ type: The outer ring has double flanges that are inseparable from the rollers, while the inner ring has a single flange that can only detach freely from one side ； II. Different functions: 1. NJ bearings: These are commonly used in cylindrical roller bearings. The NJ260 type can be applied in miniature cylinder devices, pharmaceutical grinding machinery, physical testing instruments, lift platforms on stacker trucks, industry-specific CNC machines, CNC bending machines, boring tools, touch screen products, tool holders, diesel generator sets, drilling machines, and boring machines. 2. NU bearings: Widely used in construction machinery parts, axial flow pumps, laser cutting machines, medical equipment, ceramic production lines, paper packaging machinery, industrial sewing machines, guides, equipment for slaughter and primary meat processing, closed-type reactors, magnetizing machines, refrigerators, plastic printing equipment, the military industry, pipe welding machines, rubber joint manufacturing machines, plastic sheet processing equipment, tempering furnaces, etc.