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Product Series of Automation-Related Precision Ball Screws and Linear Rails – High-Precision Ball Screws

NSK Ball Screw Transfer Equipment (R Type)RNFTL 1616A3

Product Overview

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Transfer Equipment (R Type)/Ball Screw

RNFTL 1616A3

R系列

NSK Distributor Taiwan

Lead16 mm

Product Features

NSK R-series rolled ball screw nut RNFTL 1616A3 (Flanged nut with protruding recirculation tube), for 16 mm shaft dia. × 16 mm lead
Accuracy grade Ct10 (R-series standard), 3 effective ball turns, without seal
Basic load ratings: dynamic Ca 5.44 kN / static C0a 9.55 kN
Nut only (screw shaft not included); used with RS-series rolled screw shafts
Shaft-end machining to drawings available for the mating shaft

Quantity

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Product Description

RNFTL 1616A3 is an NSK R-series rolled ball screw nut (Flanged nut with protruding recirculation tube): for 16 mm shaft diameter and 16 mm lead, accuracy grade Ct10, 3 effective ball turns, without seal, with basic load ratings of Ca 5.44 kN (dynamic) and C0a 9.55 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 16 mm shaft dia. × 16 mm lead: RNFCL 1616A3, RNFCL 1616A3S, RNFCL 1616A6, RNFCL 1616A6S, RNFTL 1616A3S.

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 RS1616A - quote shaft and nut as a set; Nahshon can arrange cutting to length and shaft-end machining.

Product Specifications

Specification	Unit	RNFTL 1616A3
Series	-	R-series rolled ball screw nut / Flanged nut with protruding recirculation tube
Shaft diameter	mm	16
Lead	mm	16
Accuracy grade	-	Ct10 (R-series standard)
Effective ball turns	-	3
Seal	-	Without seal
Basic dynamic load rating Ca	kN	5.44
Basic static load rating C0a	kN	9.55
Internal design code	-	A (NSK internal design code)
Mating screw shaft	-	RS-series rolled screw shaft (sold separately)

FAQ

How do I choose between precision grades C3, C5 and C7?

For measurement and machining equipment that need high positioning accuracy, choose the ground-finish C3/C5 grades; for general material handling and automation mechanisms, the rolled-finish C7 grade is sufficient and offers a cost and lead-time advantage.

Can the shaft ends be custom-machined?

Yes. Nahshon offers custom shaft-end machining for NSK ball screws, completing shaft-end turning and heat treatment to your drawings, saving you the in-house machining step.

How do I confirm pricing and lead time for RNFTL 1616A3?

Nahshon is the NSK distributor in Taiwan. Add RNFTL 1616A3 to your inquiry list along with your stroke, load and operating conditions, and we'll confirm the specification, quote and lead time.