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

NSK Bearings Spherical Roller Bearings 22330

Product Overview

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Spherical Roller Bearings/Bearings

22330

Spherical Roller Bearing

NSK Distributor Taiwan

Bore d150 mm
Width B108 mm

Product Features

NSK spherical roller bearing (22330 series), model 22330: 150 mm bore, 320 mm OD, 108 mm width, cylindrical bore (no K)
Basic dynamic load rating Cr 1530 kN, basic static load rating C0r 1690 kN (NSK official catalog; current-generation equivalent 22330CAME4, Cr/C0r figures above are taken from that higher-capacity current design)
Thermal speed rating approx. 1600 min⁻¹, limiting speed (grease) approx. 1100 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 22330 is an NSK spherical roller bearing from the 22330 series: 150 mm bore, 320 mm outer diameter, 108 mm width, cylindrical bore (no K). Basic dynamic load rating Cr is 1530 kN and basic static load rating C0r is 1690 kN (NSK official catalog CAT. No. E1103d; current-generation equivalent 22330CAME4, 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	22330
Series	-	22330 series
Bore d	mm	150
Outer diameter D	mm	320
Width B	mm	108
Min. chamfer r	mm	4
Bore type	-	cylindrical bore (no K)
Basic dynamic load rating Cr	kN	1530
Basic static load rating C0r	kN	1690
Thermal speed rating	min⁻¹	1600
Limiting speed (grease)	min⁻¹	1100

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 22330 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 22330 to your inquiry list or give us a call, and we'll confirm stock, lead time and quote.