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

Product Overview

NSK Ball Screw Small Equipment (Conventional FA Type)W1503FA-7PG-C5Z20

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Small Equipment (Conventional FA Type)/Ball Screw

W1503FA-7PG-C5Z20

Lead20 mm

Product Features

NSK FA series (finished shaft ends) standard-stock precision ball screw W1503FA-7PG-C5Z20, shaft dia. 15 mm, lead 20 mm
Accuracy grade C5 (JIS), axial play 0 (preloaded)
Preload: Oversize-ball preload (P preload)
Effective thread length approx. 300 mm class (code 03); overall length per NSK dimension tables
Standard stock (W reference number) with short lead times; custom shaft-end machining available

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Product Specifications

Specification	Unit	W1503FA-7PG-C5Z20
Series	-	FA series (finished shaft ends)
Shaft diameter	mm	15
Lead	mm	20
Effective thread length class	-	approx. 300 mm class (code 03) (overall length per NSK tables)
Accuracy grade	-	C5 (JIS)
Axial play	mm	0 (preloaded)
Preload	-	Oversize-ball preload (P preload)
Design serial no.	-	7 (NSK internal design number)
Additional code	-	"G" (shown as-is; no official per-code definition)
Shaft ends	-	Finished (standard shaft-end form)

Product Description

W1503FA-7PG-C5Z20 is an NSK FA series (finished shaft ends) standard-stock precision ball screw: 15 mm shaft diameter, 20 mm lead, accuracy grade C5 (JIS), axial play 0 (preloaded), preload: Oversize-ball preload (P preload). Effective thread length approx. 300 mm class (code 03); confirm the overall length with NSK dimension tables or with Nahshon. W-reference standard-stock items are standardized with comparatively short lead times.

Not sure about accuracy grades? See our guide: How to choose ball screw accuracy grades (C0–C10) (in Chinese).

Other lengths with the same specification

The FA series with 15 mm shaft dia. × 20 mm lead is also available as: W1501FA-3PG-C5Z20, W1502FA-5PG-C5Z20, W1502FA-7PG-C5Z20, W1503FA-5PG-C5Z20, W1504FA-5PG-C5Z20, W1504FA-7PG-C5Z20, W1505FA-5PG-C5Z20, W1505FA-7PG-C5Z20 and more — 13 models in total.

Customization

Shaft-end machining to your drawings is available. Add the part number (or your drawing) to the inquiry cart — Nahshon works directly with NSK to confirm specs, quotation and delivery.

Related Files

NSK FA型滾珠螺桿原廠型錄專章.pdfDownload