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

Product Overview

NSK Bearings Angular Contact Ball Bearings 7211BW

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Angular Contact Ball Bearings/Bearings

7211BW

Angular Contact Ball Bearing (NSK Authorized Distributor, Taiwan)

Bore d55 mm
Width B21 mm

Product Features

NSK angular contact ball bearing, single-row 7211 series, model 7211BW: 55 mm bore, 100 mm OD, 21 mm width, 40° contact angle, W pressed-steel cage
Basic dynamic load rating Cr 51 kN, basic static load rating C0r 36 kN (NSK official catalog)
Limiting speed approx. 4000 min⁻¹ (grease), 5600 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 authorized distributor in Taiwan — add the part number to your inquiry list

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Product Specifications

Specification	Unit	7211BW
Series	-	7211 series (single row)
Bore d	mm	55
Outer diameter D	mm	100
Width B	mm	21
Min. chamfer r	mm	1.5
Contact angle	-	40°
Cage	-	W (pressed steel)
Basic dynamic load rating Cr	kN	51
Basic static load rating C0r	kN	36
Limiting speed (grease)	min⁻¹	4000
Limiting speed (oil)	min⁻¹	5600

Product Description

The 7211BW is an NSK angular contact ball bearing from the single-row 7211 series: 55 mm bore, 100 mm outer diameter, 21 mm width, 40° contact angle, W pressed-steel cage. Basic dynamic load rating Cr is 51 kN and basic static load rating C0r is 36 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.

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Add this part number to your inquiry list — Nahshon is NSK's authorized distributor in Taiwan and works directly with the factory to confirm specifications, stock and pricing.