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

NSK Bearings Cylindrical Roller Bearings N317W

Product Overview

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Cylindrical Roller Bearings/Bearings

N317W

Cylindrical Roller Bearing

Bore d85 mm
Width B41 mm

Product Features

NSK cylindrical roller bearing (N317 series), model N317W: 85 mm bore, 180 mm OD, 41 mm width, N type, W pressed-steel cage
Basic dynamic load rating Cr 277 kN, basic static load rating C0r 247 kN (NSK official catalog)
Limiting speed approx. 2600 min⁻¹ (grease), 3200 min⁻¹ (oil)
no ribs on outer ring, two ribs on inner ring; outer 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	N317W
Series	-	N317 series (N type)
Bore d	mm	85
Outer diameter D	mm	180
Width B	mm	41
Min. chamfer r	mm	3
Cage	-	W (pressed steel)
Basic dynamic load rating Cr	kN	277
Basic static load rating C0r	kN	247
Limiting speed (grease)	min⁻¹	2600
Limiting speed (oil)	min⁻¹	3200

Product Description

The N317W is an NSK cylindrical roller bearing from the N317 series (N type): 85 mm bore, 180 mm outer diameter, 41 mm width, W pressed-steel cage. Basic dynamic load rating Cr is 277 kN and basic static load rating C0r is 247 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.