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

NSK Bearings Self-Aligning Ball Bearings 2207K

Product Overview

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Self-Aligning Ball Bearings/Bearings

2207K

Self-Aligning Ball Bearing

NSK Distributor Taiwan

Bore d35 mm
Width B23 mm

Product Features

NSK self-aligning ball bearing (2207 series), model 2207K: 35 mm bore, 72 mm OD, 23 mm width, tapered bore (K, 1:12 taper)
Basic dynamic load rating Cr 23.9 kN, basic static load rating C0r 6.6 kN (NSK official catalog CAT. No. E1103d)
Limiting speed approx. 8500 min⁻¹ (grease), 10000 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 distributor in Taiwan — add the part number to your inquiry list

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Product Description

The 2207K is an NSK self-aligning ball bearing from the 2207 series: 35 mm bore, 72 mm outer diameter, 23 mm width, tapered bore (K, 1:12 taper). Basic dynamic load rating Cr is 23.9 kN and basic static load rating C0r is 6.6 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 distributor in Taiwan and works directly with the factory to confirm specifications, stock and pricing.

Product Specifications

Specification	Unit	2207K
Series	-	2207 series
Bore d	mm	35
Outer diameter D	mm	72
Width B	mm	23
Min. chamfer r	mm	1.1
Bore type	-	tapered bore (K, 1:12 taper)
Basic dynamic load rating Cr	kN	23.9
Basic static load rating C0r	kN	6.6
Limiting speed (grease)	min⁻¹	8500
Limiting speed (oil)	min⁻¹	10000

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 2207K 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 2207K to your inquiry list or give us a call, and we'll confirm stock, lead time and quote.

Series Models

Self-Aligning Ball Bearings・2207 series

1320 1320K 2202 2203 2204 2205 2205K 2206 2206K 22072207K（This page）2208 2208K 2209 2209K 2210 2210K 2211 2211K 2212 2212K

View All Self-Aligning Ball Bearings Models →