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

NSK Bearings Cylindrical Roller Bearings NU319W

Product Overview

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Cylindrical Roller Bearings/Bearings

NU319W

Cylindrical Roller Bearing

Bore d95 mm
Width B45 mm

Product Features

NSK cylindrical roller bearing (NU319 series), model NU319W: 95 mm bore, 200 mm OD, 45 mm width, NU type, W pressed-steel cage
Basic dynamic load rating Cr 320 kN, basic static load rating C0r 289 kN (NSK official catalog)
Limiting speed approx. 2400 min⁻¹ (grease), 3000 min⁻¹ (oil)
no ribs on inner ring, two ribs on outer ring; inner ring can float axially, no axial load capacity; line contact between rollers and raceways gives high radial load capacity and low friction, suited to high-speed heavy-duty drives
Nahshon is NSK's distributor in Taiwan — add the part number to your inquiry list

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Product Specifications

Specification	Unit	NU319W
Series	-	NU319 series (NU type)
Bore d	mm	95
Outer diameter D	mm	200
Width B	mm	45
Min. chamfer r	mm	3
Cage	-	W (pressed steel)
Basic dynamic load rating Cr	kN	320
Basic static load rating C0r	kN	289
Limiting speed (grease)	min⁻¹	2400
Limiting speed (oil)	min⁻¹	3000

Product Description

The NU319W is an NSK cylindrical roller bearing from the NU319 series (NU type): 95 mm bore, 200 mm outer diameter, 45 mm width, W pressed-steel cage. Basic dynamic load rating Cr is 320 kN and basic static load rating C0r is 289 kN (NSK official catalog CAT. No. E1103d). Cylindrical roller bearings use line contact between rollers and raceways for high radial load capacity and low friction — suited to high-speed, heavy-duty drives such as gear reducers, motors and machine-tool spindles.

Inquiries & customization

Add this part number to your inquiry list — Nahshon is NSK's distributor in Taiwan and works directly with the factory to confirm specifications, stock and pricing.