L
o
a
d
i
n
g
.
.
.

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

NSK Bearings Spherical Roller Bearings 23228K

Product Overview

L
o
a
d
i
n
g
.
.
.

Spherical Roller Bearings/Bearings

23228K

Spherical Roller Bearing

NSK Distributor Taiwan

Bore d140 mm
Width B88 mm

Product Features

NSK spherical roller bearing (23228 series), model 23228K: 140 mm bore, 250 mm OD, 88 mm width, tapered bore (K, 1:12 taper)
Basic dynamic load rating Cr 1040 kN, basic static load rating C0r 1300 kN (NSK official catalog; current-generation equivalent 23228CKE4, Cr/C0r figures above are taken from that higher-capacity current design)
Thermal speed rating approx. 1800 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

Quantity

Quick Inquiry

Call UsEmail UsChat on LINE Contact Us About This Product

Product Description

The 23228K is an NSK spherical roller bearing from the 23228 series: 140 mm bore, 250 mm outer diameter, 88 mm width, tapered bore (K, 1:12 taper). Basic dynamic load rating Cr is 1040 kN and basic static load rating C0r is 1300 kN (NSK official catalog CAT. No. E1103d; current-generation equivalent 23228CKE4, 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	23228K
Series	-	23228 series
Bore d	mm	140
Outer diameter D	mm	250
Width B	mm	88
Min. chamfer r	mm	3
Bore type	-	tapered bore (K, 1:12 taper)
Basic dynamic load rating Cr	kN	1040
Basic static load rating C0r	kN	1300
Thermal speed rating	min⁻¹	1800
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 23228K 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 23228K to your inquiry list or give us a call, and we'll confirm stock, lead time and quote.