RNFTL 1208A2.5S is an NSK R-series rolled ball screw nut (Flanged nut with protruding recirculation tube): for 12 mm shaft diameter and 8 mm lead, accuracy grade Ct10, 2.5 effective ball turns, with seal (s), with basic load ratings of Ca 4.29 kN (dynamic) and C0a 6.61 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 12 mm shaft dia. × 8 mm lead: RNFBL 1208A2.5S.
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 RS1208A - quote shaft and nut as a set; Nahshon can arrange cutting to length and shaft-end machining.
