L
o
a
d
i
n
g
.
.
.

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

NSK Bearings Angular Contact Ball Bearings 7210BW

Product Overview

L
o
a
d
i
n
g
.
.
.

Angular Contact Ball Bearings/Bearings

7210BW

Angular Contact Ball Bearing

NSK Distributor Taiwan

Bore d50 mm
Width B20 mm

Product Features

NSK angular contact ball bearing, single-row 7210 series, model 7210BW: 50 mm bore, 90 mm OD, 20 mm width, 40° contact angle, W pressed-steel cage
Basic dynamic load rating Cr 41 kN, basic static load rating C0r 28.6 kN (NSK official catalog)
Limiting speed approx. 4500 min⁻¹ (grease), 6300 min⁻¹ (oil)
Carries radial load plus axial load in one direction; two or more bearings are matched (DB/DF/DT) for bidirectional loading
Nahshon is NSK's distributor in Taiwan — add the part number to your inquiry list

Quantity

Quick Inquiry

Call Us Email Us Contact Us About This Product

Product Description

The 7210BW is an NSK angular contact ball bearing from the single-row 7210 series: 50 mm bore, 90 mm outer diameter, 20 mm width, 40° contact angle, W pressed-steel cage. Basic dynamic load rating Cr is 41 kN and basic static load rating C0r is 28.6 kN (NSK official catalog CAT. No. E1103d). Angular contact ball bearings carry radial load together with axial load in one direction; because a radial load produces an axial reaction, two or more bearings are typically matched (DB, DF or DT) — common in machine-tool spindles, pumps and precision drives.

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	7210BW
Series	-	7210 series (single row)
Bore d	mm	50
Outer diameter D	mm	90
Width B	mm	20
Min. chamfer r	mm	1.1
Contact angle	-	40°
Cage	-	W (pressed steel)
Basic dynamic load rating Cr	kN	41
Basic static load rating C0r	kN	28.6
Limiting speed (grease)	min⁻¹	4500
Limiting speed (oil)	min⁻¹	6300

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 7210BW 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 7210BW to your inquiry list or give us a call, and we'll confirm stock, lead time and quote.

Series Models

Angular Contact Ball Bearings・7210 series (single row)

7200BW 7201BW 7202BW 7203BW 7204BW 7205BW 7206BW 7207BW 7208BW 7209BW7210BW（This page）7211BW 7212BW 7213BW 7214BW 7215BW 7216BW 7217BW 7218BW 7219BW 7220BW

View All Angular Contact Ball Bearings Models →