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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 1220

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Self-Aligning Ball Bearings/Bearings

1220

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

Bore d100 mm
Width B34 mm

Product Features

NSK self-aligning ball bearing (1220 series), model 1220: 100 mm bore, 180 mm OD, 34 mm width, cylindrical bore (no K)
Basic dynamic load rating Cr 76.5 kN, basic static load rating C0r 29.7 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 authorized distributor in Taiwan — add the part number to your inquiry list

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Product Specifications

Specification	Unit	1220
Series	-	1220 series
Bore d	mm	100
Outer diameter D	mm	180
Width B	mm	34
Min. chamfer r	mm	2.1
Bore type	-	cylindrical bore (no K)
Basic dynamic load rating Cr	kN	76.5
Basic static load rating C0r	kN	29.7
Limiting speed (grease)	min⁻¹	3200
Limiting speed (oil)	min⁻¹	3800

Product Description

The 1220 is an NSK self-aligning ball bearing from the 1220 series: 100 mm bore, 180 mm outer diameter, 34 mm width, cylindrical bore (no K). Basic dynamic load rating Cr is 76.5 kN and basic static load rating C0r is 29.7 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 authorized distributor in Taiwan and works directly with the factory to confirm specifications, stock and pricing.