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

NSK Bearings Self-Aligning Ball Bearings 1318K

Product Overview

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Self-Aligning Ball Bearings/Bearings

1318K

Self-Aligning Ball Bearing

Bore d90 mm
Width B43 mm

Product Features

NSK self-aligning ball bearing (1318 series), model 1318K: 90 mm bore, 190 mm OD, 43 mm width, tapered bore (K, 1:12 taper)
Basic dynamic load rating Cr 129 kN, basic static load rating C0r 44.5 kN (NSK official catalog CAT. No. E1103d)
Limiting speed approx. 3200 min⁻¹ (grease), 3800 min⁻¹ (oil)
Double-row balls on a spherical outer raceway self-align for shaft misalignment; lower friction and higher speed capability than a spherical roller bearing
Nahshon is NSK's distributor in Taiwan — add the part number to your inquiry list

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Product Specifications

Specification	Unit	1318K
Series	-	1318 series
Bore d	mm	90
Outer diameter D	mm	190
Width B	mm	43
Min. chamfer r	mm	3
Bore type	-	tapered bore (K, 1:12 taper)
Basic dynamic load rating Cr	kN	129
Basic static load rating C0r	kN	44.5
Limiting speed (grease)	min⁻¹	3200
Limiting speed (oil)	min⁻¹	3800

Product Description

The 1318K is an NSK self-aligning ball bearing from the 1318 series: 90 mm bore, 190 mm outer diameter, 43 mm width, tapered bore (K, 1:12 taper). Basic dynamic load rating Cr is 129 kN and basic static load rating C0r is 44.5 kN (NSK official catalog CAT. No. E1103d). Self-aligning ball bearings use double-row balls on a spherical outer raceway, self-aligning for minor shaft misalignment with lower friction and higher speed capability than a spherical roller bearing, at the cost of lower radial load capacity.

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.