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

NSK Bearings Spherical Roller Bearings 23120

Product Overview

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Spherical Roller Bearings/Bearings

23120

Spherical Roller Bearing

Bore d100 mm
Width B52 mm

Product Features

NSK spherical roller bearing (23120 series), model 23120: 100 mm bore, 165 mm OD, 52 mm width, cylindrical bore (no K)
Basic dynamic load rating Cr 345 kN, basic static load rating C0r 530 kN (NSK official catalog; current-generation equivalent 23120CE4, Cr/C0r figures above are taken from that higher-capacity current design)
Thermal speed rating approx. 2800 min⁻¹, limiting speed (grease) approx. 1700 min⁻¹
Double-row rollers on a spherical outer raceway self-align for misalignment and shaft deflection — suited to long shafts and 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	23120
Series	-	23120 series
Bore d	mm	100
Outer diameter D	mm	165
Width B	mm	52
Min. chamfer r	mm	2
Bore type	-	cylindrical bore (no K)
Basic dynamic load rating Cr	kN	345
Basic static load rating C0r	kN	530
Thermal speed rating	min⁻¹	2800
Limiting speed (grease)	min⁻¹	1700

Product Description

The 23120 is an NSK spherical roller bearing from the 23120 series: 100 mm bore, 165 mm outer diameter, 52 mm width, cylindrical bore (no K). Basic dynamic load rating Cr is 345 kN and basic static load rating C0r is 530 kN (NSK official catalog CAT. No. E1103d; current-generation equivalent 23120CE4, Cr/C0r figures above are taken from that higher-capacity current design). Spherical roller bearings use double-row rollers on a spherical outer raceway that self-aligns for misalignment and shaft deflection while carrying heavy radial and bidirectional axial loads — common in gear reducers, conveyor rollers, paper machinery and wind-turbine main shafts.

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.