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

NSK Bearings Angular Contact Ball Bearings 7204BW

Product Overview

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Angular Contact Ball Bearings/Bearings

7204BW

Angular Contact Ball Bearing

NSK Distributor Taiwan

Bore d20 mm
Width B14 mm

Product Features

NSK angular contact ball bearing, single-row 7204 series, model 7204BW: 20 mm bore, 47 mm OD, 14 mm width, 40° contact angle, W pressed-steel cage
Basic dynamic load rating Cr 14.7 kN, basic static load rating C0r 7.65 kN (NSK official catalog)
Limiting speed approx. 9500 min⁻¹ (grease), 13000 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

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Product Description

The 7204BW is an NSK angular contact ball bearing from the single-row 7204 series: 20 mm bore, 47 mm outer diameter, 14 mm width, 40° contact angle, W pressed-steel cage. Basic dynamic load rating Cr is 14.7 kN and basic static load rating C0r is 7.65 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	7204BW
Series	-	7204 series (single row)
Bore d	mm	20
Outer diameter D	mm	47
Width B	mm	14
Min. chamfer r	mm	1
Contact angle	-	40°
Cage	-	W (pressed steel)
Basic dynamic load rating Cr	kN	14.7
Basic static load rating C0r	kN	7.65
Limiting speed (grease)	min⁻¹	9500
Limiting speed (oil)	min⁻¹	13000

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 7204BW 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 7204BW to your inquiry list or give us a call, and we'll confirm stock, lead time and quote.

Series Models

Angular Contact Ball Bearings・7204 series (single row)

5307 5308 5309 5310 5311 5312 7200BW 7201BW 7202BW 7203BW7204BW（This page）7205BW 7206BW 7207BW 7208BW 7209BW 7210BW 7211BW 7212BW 7213BW 7214BW

View All Angular Contact Ball Bearings Models →