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

NSK Bearings Cylindrical Roller Bearings NU313W

Product Overview

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Cylindrical Roller Bearings/Bearings

NU313W

Cylindrical Roller Bearing

Bore d65 mm
Width B33 mm

Product Features

NSK cylindrical roller bearing (NU313 series), model NU313W: 65 mm bore, 140 mm OD, 33 mm width, NU type, W pressed-steel cage
Basic dynamic load rating Cr 166 kN, basic static load rating C0r 139 kN (NSK official catalog)
Limiting speed approx. 3600 min⁻¹ (grease), 4300 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	NU313W
Series	-	NU313 series (NU type)
Bore d	mm	65
Outer diameter D	mm	140
Width B	mm	33
Min. chamfer r	mm	2.1
Cage	-	W (pressed steel)
Basic dynamic load rating Cr	kN	166
Basic static load rating C0r	kN	139
Limiting speed (grease)	min⁻¹	3600
Limiting speed (oil)	min⁻¹	4300

Product Description

The NU313W is an NSK cylindrical roller bearing from the NU313 series (NU type): 65 mm bore, 140 mm outer diameter, 33 mm width, W pressed-steel cage. Basic dynamic load rating Cr is 166 kN and basic static load rating C0r is 139 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.