NSK 623 dimensions and catalogue data
NSK 623 is a listed metric-series single-row deep groove ball bearing. The published dimensions are 3×10×4 mm, using bore d, outside diameter D and open width B.
Open. Dynamic radial rating Cr: 0.695 kN; static radial rating C0r: 0.218 kN.
How to use this model record
- This is an independently organised catalogue reference, not an installation drawing or approval for a machine or vehicle.
- Compare the complete designation. B and B1 may differ between open and closed versions; a related base number does not establish the same width.
- Load ratings are calculation inputs, not universal permissible loads. Limiting speed depends on the stated closure, lubrication and application conditions.
- Shaft-shoulder and housing-shoulder values describe adjacent mounting geometry. Preserve the min./max. direction; they are not alternative bearing diameters.
- Precision class, radial internal clearance, grease specification, material grade and fitment are not established by this table. Missing values are not zero.
- A rotating outer ring requires a manufacturer application check for shielded or sealed constructions.
Technical basis:NSK Rolling Bearings for Industrial Machinery, E1103d (2025), Part C, C058–C059; source checked 2026-10-01. Manufacturer facts are reorganised for model lookup and comparison; no manufacturer document is republished.
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