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

NSK Bearings Cylindrical Roller Bearings NU315W

Product Overview

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Cylindrical Roller Bearings/Bearings

NU315W

Cylindrical Roller Bearing

Bore d75 mm
Width B37 mm

Product Features

NSK cylindrical roller bearing (NU315 series), model NU315W: 75 mm bore, 160 mm OD, 37 mm width, NU type, W pressed-steel cage
Basic dynamic load rating Cr 220 kN, basic static load rating C0r 189 kN (NSK official catalog)
Limiting speed approx. 3000 min⁻¹ (grease), 3800 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	NU315W
Series	-	NU315 series (NU type)
Bore d	mm	75
Outer diameter D	mm	160
Width B	mm	37
Min. chamfer r	mm	2.1
Cage	-	W (pressed steel)
Basic dynamic load rating Cr	kN	220
Basic static load rating C0r	kN	189
Limiting speed (grease)	min⁻¹	3000
Limiting speed (oil)	min⁻¹	3800

Product Description

The NU315W is an NSK cylindrical roller bearing from the NU315 series (NU type): 75 mm bore, 160 mm outer diameter, 37 mm width, W pressed-steel cage. Basic dynamic load rating Cr is 220 kN and basic static load rating C0r is 189 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.