- 10 pieces of SMR148ZZ bearings in the compact 8x14x4 mm size. - Material and type: 440C stainless steel ball bearings. The listing notes that these are ball bearings, and in some references they may be described as roller bearings. - Precision: ABEC 7 rated for high accuracy and smooth, low-friction operation. - Alternate model references: SMR148Z, SMR148 Z ZZ, and L 1480ZZ. - Why you need them: small, durable bearings that combine corrosion resistance with high precision to support reliable, consistent performance in tight spaces and demanding applications. - Key benefits by attribute: - Function: high precision bearing for precise rotational movement. - Compatibility: standardized 8x14x4 mm footprint fits many compact assemblies. - Size: compact 4 mm thickness enables use in slim profiles and tight housings. - Material: 440C stainless steel provides durability and corrosion resistance. - Performance: ABEC 7 precision ensures smooth rotation and reduced play over time. - Practical use scenarios: - Use in small robotics or compact gearboxes where precise rotation and space efficiency are required. - Suitable for hobbyist projects such as RC devices or camera gimbals that demand smooth, accurate motion in tight enclosures. - Appropriate for precision small motor assemblies, linear actuators, or other compact mechanical assemblies needing reliable, high-quality bearings. - Packaging and quantity: supplied as a set of 10 bearings to ensure ready replacements and consistent performance across multiple assemblies.