7019 CE/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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7019 CE/HCP4ADGA Bearing Product Overview & Core Advantages
The 7019 CE/HCP4ADGA is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and performance. This universal matchable (SU) bearing features an extra light preload (Class A) and is designed to handle combined radial and axial loads simultaneously. Manufactured to P4A tolerance class with ceramic balls and a phenolic cage, it delivers superior high-speed capability, reduced friction, and extended service life in precision machinery.
7019 CE/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
- 7019: Basic bearing series and size designation (95mm bore, 145mm OD, 48mm width)
- CE: Indicates ceramic ball material (Silicon Nitride), providing higher speed capability and electrical insulation
- HC: Denotes phenolic resin cage, optimized for high-speed operation
- P4A: Specifies super precision tolerance class with controlled runout and dimensional stability
- DGA: Identifies universal matchable design (SU) allowing flexible bearing arrangements
7019 CE/HCP4ADGA Bearing Structural Features & Performance Benefits
This bearing's advanced construction delivers significant performance advantages:
- High-Speed Performance: The combination of ceramic balls and phenolic cage reduces centrifugal forces and friction, enabling operation at 15,000 rpm limiting speed
- Precision Engineering: Manufactured to P4A tolerance class with tight dimensional control (±0.004mm bore/OD tolerance) for exceptional running accuracy
- Universal Matching Capability: SU designation allows flexible mounting arrangements (DB, DF, DT) without selective matching
- Thermal Stability: Phenolic cage material provides excellent dimensional stability across the operating temperature range (-30°C to 110°C)
- High Load Capacity: Rated for 16,088 lbf dynamic and 17,212 lbf static radial loads with 15° contact angle
7019 CE/HCP4ADGA Bearing Typical Application Areas
The 7019 CE/HCP4ADGA is ideally suited for high-precision, high-speed applications including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers
- Precision Robotics: Joint and arm articulation systems
- Aerospace Systems: Gyroscopes, navigation equipment, and flight control mechanisms
- Medical Equipment: High-speed dental handpieces and surgical tools
- Semiconductor Manufacturing: Wafer handling robots and precision positioning stages
