7215 CDGB/P4 Single Row Angular Contact Ball Bearing P4 Precision CDGB Glass Nylon Cage 75x130x25mm CNC Spindle Equipment

The 7215 CDGB/P4 single row angular contact ball bearing adopts 15° contact angle, CDGB glass fiber reinforced nylon cage and P4 super precision tolerance grade. It can bear combined radial and unidirectional axial loads, supports ultra-high speed rotation with ultra-low vibration and noise, widely applied to CNC machine tool spindles, precision automation equipment, testing instruments and high-speed rotary machinery.

• 15° small contact angle realizes outstanding high-speed rotation performance and low heat generation
• CDGB lightweight nylon cage reduces centrifugal force, ensures stable ball operation at high RPM
• Strict P4 ultra-precision dimensional tolerance, small runout for high accuracy machining equipment
• Precision superfinished raceway surface minimizes friction, lowers vibration and running noise
• Matched universal design, can be installed in DB/DF/DT arrangement for bidirectional axial load
• Brass cage and P2/P5 precision grades can be customized for different working demands

This P4 precision angular contact bearing is widely used in:

• CNC machine tool main spindles, milling and grinding machine rotary assemblies
• High-speed precision testing instruments, optical detection equipment
• Automation high-speed rotating shafts, textile high-speed spindles and medical precision machinery
• General equipment requiring ultra-low runout and stable high-speed operation

• 25+ years experience in P4 high precision angular contact ball bearing manufacturing
• Exported to 50+ countries worldwide
• Rich OEM experience for CDGB cage ultra-precision spindle bearing bulk orders
• Strict P4 precision inspection, high-speed rotation test and noise detection before shipment
• Fast professional technical reply within 24 hours
• Stable bulk supply for long-term machine tool and precision equipment factory cooperation

• High chromium bearing steel raw material incoming hardness inspection
• Ultra-fine superfinishing for inner/outer raceway and steel balls
• Precision dimensional sorting for P4 tolerance grade, strict runout control
• CDGB cage high-speed durability test, noise and rotation smoothness inspection
• Full dimensional recheck and vacuum anti-rust packaging before delivery

Looking for P4 precision CDGB cage 7215 high speed angular contact ball bearing supplier?

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• Fast factory quotation within 24h
• Professional CNC spindle high precision bearing technical parameter support
• Custom brass cage & different contact angle solution suggestions
• Competitive bulk wholesale factory price

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• Q1: What’s the feature of CDGB cage?

  CDGB is glass fiber reinforced nylon cage, lightweight, low friction and suitable for ultra-high speed working conditions.

• Q2: Can 7215 CDGB/P4 be paired for bidirectional axial load?

  Yes, DB, DF, DT matched pairing modes are available to bear two-way axial thrust.

• Q3: What is your standard production lead time?

  Standard stock models: 10–18 working days

  Custom special precision and cage orders take 18–25 days