RNFBL 2806A5S is an NSK R-series rolled ball screw nut (Round flanged nut with recirculation tube): for 28 mm shaft diameter and 6 mm lead, accuracy grade Ct10, 5 effective ball turns, with seal (s), with basic load ratings of Ca 15.9 kN (dynamic) and C0a 40.5 kN (static). This is a nut-only item (screw shaft not included), used with NSK RS-series rolled screw shafts for economical transfer drives.
Not sure about accuracy grades? See our guide: How to choose ball screw accuracy grades (C0–C10) (in Chinese).
Other nut models for the same shaft dia. × lead
Other nut models for 28 mm shaft dia. × 6 mm lead: RNCT 2806A5, RNCT 2806A5S, RNFBL 2806A2.5S, RNFTL 2806A2.5, RNFTL 2806A2.5S, RNFTL 2806A5, RNFTL 2806A5s, RNSTL 2806A2.5S and more — 9 models in total.
Customization
This is a nut-only item, used with the matching RS-series rolled screw shaft; shaft ends can be machined to your drawings. Add the part number (or your drawing) to the inquiry cart — Nahshon works directly with NSK to confirm specs, quotation and delivery.
Matching Shaft
This nut matches shaft RS2806A - quote shaft and nut as a set; Nahshon can arrange cutting to length and shaft-end machining.
