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

Product Overview

NSK Ball Screw Machine Tool (SA Type)W2502SA-2P-C5Z4

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Machine Tool (SA Type)/Ball Screw

W2502SA-2P-C5Z4

Lead4 mm

Product Features

NSK Standard series SA (finished shaft ends) standard-stock precision ball screw W2502SA-2P-C5Z4, shaft dia. 25 mm, lead 4 mm
Accuracy grade C5 (JIS), axial play 0 (preloaded)
Basic load ratings: dynamic Ca 7.11 kN / static C0a 13.6 kN
Effective thread length approx. 200 mm class (code 02); overall length per NSK dimension tables
Standard stock (W reference number) with short lead times; custom shaft-end machining available

Quantity

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Product Specifications

Specification	Unit	W2502SA-2P-C5Z4
Series	-	Standard series SA (finished shaft ends)
Shaft diameter	mm	25
Lead	mm	4
Effective thread length class	-	approx. 200 mm class (code 02) (overall length per NSK tables)
Accuracy grade	-	C5 (JIS)
Axial play	mm	0 (preloaded)
Preload	-	Oversize-ball preload (P preload)
Basic dynamic load rating Ca	kN	7.11
Basic static load rating C0a	kN	13.6
Design serial no.	-	2 (NSK internal design number)
Shaft ends	-	Finished (standard shaft-end form)

Product Description

W2502SA-2P-C5Z4 is an NSK Standard series SA (finished shaft ends) standard-stock precision ball screw: 25 mm shaft diameter, 4 mm lead, accuracy grade C5 (JIS), axial play 0 (preloaded), preload: Oversize-ball preload (P preload), with basic load ratings of Ca 7.11 kN (dynamic) and C0a 13.6 kN (static). Effective thread length approx. 200 mm class (code 02); 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 SA series with 25 mm shaft dia. × 4 mm lead is also available as: W2502SA-1P-C5Z4, W2503SA-1P-C5Z4, W2504SA-1P-C5Z4, W2505SA-1P-C5Z4, W2507SA-1P-C5Z4.

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 SA型滾珠螺桿原廠型錄專章.pdfDownload