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

Product Overview

NSK Bearings Self-Aligning Ball Bearings 1218

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Self-Aligning Ball Bearings/Bearings

1218

Self-Aligning Ball Bearing (NSK Authorized Distributor, Taiwan)

Bore d90 mm
Width B30 mm

Product Features

NSK self-aligning ball bearing (1218 series), model 1218: 90 mm bore, 160 mm OD, 30 mm width, cylindrical bore (no K)
Basic dynamic load rating Cr 63 kN, basic static load rating C0r 23.5 kN (NSK official catalog CAT. No. E1103d)
Limiting speed approx. 3600 min⁻¹ (grease), 4300 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	1218
Series	-	1218 series
Bore d	mm	90
Outer diameter D	mm	160
Width B	mm	30
Min. chamfer r	mm	2
Bore type	-	cylindrical bore (no K)
Basic dynamic load rating Cr	kN	63
Basic static load rating C0r	kN	23.5
Limiting speed (grease)	min⁻¹	3600
Limiting speed (oil)	min⁻¹	4300

Product Description

The 1218 is an NSK self-aligning ball bearing from the 1218 series: 90 mm bore, 160 mm outer diameter, 30 mm width, cylindrical bore (no K). Basic dynamic load rating Cr is 63 kN and basic static load rating C0r is 23.5 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.