Nachi 7012CYDUGL P4 Precision Spindle Bearing | Premium Quality
Nachi 7012CYDUGL P4 is a high-precision angular contact ball bearing designed primarily for high-speed, high-rigidity applications like machine tool spindles.

Key Specifications & Nomenclature
7012:

• 70 Series: Ultra-light load angular contact ball bearing series (15° contact angle by default for Nachi C-type).
• 12 (Bore Size): 12 times 5 = 60 mm inner diameter (ID)
• C: 15 degree contact angle, optimized for high speeds and radial-axial load combinations.
• Y: Polyamide or resin cage (lightweight, quiet operation, reduced friction at high RPMs).
• DU: Matched duplex pair mounted Duplex Universal (can be arranged back-to-back DB, face-to-face DF, or tandem DT).
• GL: Light preload condition when mounted as a duplex set.
• P4: ISO Class 4 precision tolerance grade (equivalent to ABEC-7), ensuring ultra-precise running accuracy and minimal runout.

Dimensional Profile
•Bore Diameter (d): 60 mm
•Outer Diameter (D): 95 mm
•Width (B): 18 mm (single) 36 mm(duplex set)

Primary Applications
•CNC milling and lathe main spindles
•High-speed precision grinding spindles
•Live tooling units
• Precision measuring equipment
Sep 13th, 2026 11:22 AM

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