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Product Series of Automation-Related Precision Ball Screws and Linear Rails – High-Precision Ball Screws
NSKBearingsAngular Contact Ball Bearings7305BW
Product Overview
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Product image_1
Angular Contact Ball Bearings/Bearings

7305BW

Angular Contact Ball Bearing

NSK Distributor Taiwan
  • Bore d25 mm
  • Width B17 mm

Product Features

  • NSK angular contact ball bearing, single-row 7305 series, model 7305BW: 25 mm bore, 62 mm OD, 17 mm width, 40° contact angle, W pressed-steel cage
  • Basic dynamic load rating Cr 26.8 kN, basic static load rating C0r 14.6 kN (NSK official catalog)
  • Limiting speed approx. 7500 min⁻¹ (grease), 10000 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 7305BW is an NSK angular contact ball bearing from the single-row 7305 series: 25 mm bore, 62 mm outer diameter, 17 mm width, 40° contact angle, W pressed-steel cage. Basic dynamic load rating Cr is 26.8 kN and basic static load rating C0r is 14.6 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
SpecificationUnit7305BW
Series-7305 series (single row)
Bore dmm25
Outer diameter Dmm62
Width Bmm17
Min. chamfer rmm1.1
Contact angle-40°
Cage-W (pressed steel)
Basic dynamic load rating CrkN26.8
Basic static load rating C0rkN14.6
Limiting speed (grease)min⁻¹7500
Limiting speed (oil)min⁻¹10000
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 7305BW 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 7305BW to your inquiry list or give us a call, and we'll confirm stock, lead time and quote.
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