L
o
a
d
i
n
g
.
.
.

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

NSK Bearings Cylindrical Roller Bearings NU317W

Product Overview

L
o
a
d
i
n
g
.
.
.

Cylindrical Roller Bearings/Bearings

NU317W

Cylindrical Roller Bearing

NSK Distributor Taiwan

Bore d85 mm
Width B41 mm

Product Features

NSK cylindrical roller bearing (NU317 series), model NU317W: 85 mm bore, 180 mm OD, 41 mm width, NU type, W pressed-steel cage
Basic dynamic load rating Cr 261 kN, basic static load rating C0r 228 kN (NSK official catalog)
Limiting speed approx. 2600 min⁻¹ (grease), 3200 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

Quantity

Quick Inquiry

Call UsEmail UsChat on LINE Contact Us About This Product

Product Description

The NU317W is an NSK cylindrical roller bearing from the NU317 series (NU type): 85 mm bore, 180 mm outer diameter, 41 mm width, W pressed-steel cage. Basic dynamic load rating Cr is 261 kN and basic static load rating C0r is 228 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.

Product Specifications

Specification	Unit	NU317W
Series	-	NU317 series (NU 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	261
Basic static load rating C0r	kN	228
Limiting speed (grease)	min⁻¹	2600
Limiting speed (oil)	min⁻¹	3200

FAQ

What's the difference between the Z, ZZ and DDU suffixes?

Z means a single-side steel shield, ZZ means steel shields on both sides, and DDU means contact rubber seals on both sides. Shields suit general environments and high speeds; rubber seals give better dust and water protection with slightly higher friction torque — choose based on your dust exposure and lubrication method.

When should I choose C3 clearance instead of standard clearance?

For motors or other applications with noticeable temperature rise, or high-speed operation, the inner ring expands from heat and reduces the clearance — choose C3 in that case. Standard clearance is fine for general room-temperature, low-speed use. See Nahshon's technical resources for a clearance selection guide.

Is NU317W in stock in Taiwan? What is the lead time?

Nahshon is the NSK distributor in Taiwan and keeps stock of some commonly used items. Add NU317W to your inquiry list or give us a call, and we'll confirm stock, lead time and quote.