Machined Bearings RNA Are Metric Series Caged Needle Roller Bearings Without An Inner Ring For Use With Shafts Without Inner Rings.
Machined Type Needle Roller Bearings consist of a solid outer ring, rollers and retainer, without inner ring for long lasting durability. Feature low sectional height, large load ratings and high rigidity that can easily be used for light alloy housings. Models available with and without seals. Pre-packed lubricant is not provided except with double sealed bearings (suffix UU). Proper lubricant must be applied when used. 0.2µmRa or less shaft surface finish and HRC 58 to 64 shaft hardness are recommended. Available dynamic load rating ranges from 2420 to 1,910,000. Static load ranges from 1950 to 5,140,000. Max speed/grease RPM ranges from 240 to 48,000. Dimensions vary per model.