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

NSK Bearings Spherical Roller Bearings 22211K

Product Overview

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Spherical Roller Bearings/Bearings

22211K

Spherical Roller Bearing

NSK Distributor Taiwan

Bore d55 mm
Width B25 mm

Product Features

NSK spherical roller bearing (22211 series), model 22211K: 55 mm bore, 100 mm OD, 25 mm width, tapered bore (K, 1:12 taper)
Basic dynamic load rating Cr 149 kN, basic static load rating C0r 144 kN (NSK official catalog; current-generation equivalent 22211EAKE4, Cr/C0r figures above are taken from that higher-capacity current design)
Thermal speed rating approx. 5300 min⁻¹, limiting speed (grease) approx. 5300 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 Description

The 22211K is an NSK spherical roller bearing from the 22211 series: 55 mm bore, 100 mm outer diameter, 25 mm width, tapered bore (K, 1:12 taper). Basic dynamic load rating Cr is 149 kN and basic static load rating C0r is 144 kN (NSK official catalog CAT. No. E1103d; current-generation equivalent 22211EAKE4, 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.

Product Specifications

Specification	Unit	22211K
Series	-	22211 series
Bore d	mm	55
Outer diameter D	mm	100
Width B	mm	25
Min. chamfer r	mm	1.5
Bore type	-	tapered bore (K, 1:12 taper)
Basic dynamic load rating Cr	kN	149
Basic static load rating C0r	kN	144
Thermal speed rating	min⁻¹	5300
Limiting speed (grease)	min⁻¹	5300

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 22211K 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 22211K to your inquiry list or give us a call, and we'll confirm stock, lead time and quote.

Series Models

Spherical Roller Bearings・22211 series

22206K 22207 22207K 22208 22208K 22209 22209K 22210 22210K 2221122211K（This page）22212 22212K 22213 22213K 22214 22214K 22215 22215K 22216 22216K

View All Spherical Roller Bearings Models →