7014 ACE/HCP4ALQBCA
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7014 ACE/HCP4ALQBCA
Basic Information
System of measurement
Metric
Weight
2.23 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
70 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
110 mm
Outside diameter tolerance
-0.004mm to 0
Width
80 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
9.525 mm
Ball quantity
25
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
13320 lbf
Radial static load rating
15638 lbf
Limiting speed
29 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Quadruplex Back-to-Back (QBC)
Number of bearings in matched set
4
Universal matching bearing
No (Standard)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
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In Stock
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7014 ACE/HCP4ALQBCA Bearing Product Overview & Core Advantages
The 7014 ACE/HCP4ALQBCA is a precision quadruplex angular contact ball bearing designed for demanding applications requiring exceptional rigidity and accuracy. This matched set of four bearings in a back-to-back (QBC) arrangement provides superior stability and load-handling capabilities. Engineered to a P4A tolerance class, it delivers high running accuracy, making it ideal for high-speed spindles and precision machinery. Its ceramic ball construction and phenolic cage contribute to its outstanding high-speed performance and reduced operational friction.
7014 ACE/HCP4ALQBCA Bearing Model Code Explained, Specifications & Naming Convention
The model number 7014 ACE/HCP4ALQBCA is decoded as follows:
- 7014: Basic bearing series, indicating a 70mm bore and standard cross-section.
- A: Denotes a 25° contact angle, optimized for handling combined loads.
- CE: Signifies the use of Hybrid Ceramic balls (Silicon Nitride).
- HC: Indicates a Phenolic (Polyamide) Cage.
- P4A: Specifies a very high precision tolerance class (superior to ABEC 7).
- L: Refers to Light preload.
- QBC: Denotes the bearing is part of a Quadruplex (4 bearings) set in a Back-to-Back arrangement.
7014 ACE/HCP4ALQBCA Bearing Structural Features & Performance Benefits
- Exceptional Rigidity and Stability: The quadruplex back-to-back (QBC) arrangement creates a highly rigid bearing system that effectively resists moment loads and shaft deflection, ensuring precise rotational alignment.
- Superior Load Capacity: The 25° contact angle and four-bearing stack enable the set to support significant combined radial and axial loads from both directions simultaneously.
- High-Speed Capability: The combination of lightweight phenolic cage and hybrid ceramic balls reduces centrifugal forces and friction, allowing for a high limiting speed of 29,000 rpm. The ceramic balls also offer lower thermal expansion and electrical insulation properties.
- Precision Performance: Manufactured to P4A tolerance class with tight dimensional control on bore, outside diameter, and width, this bearing ensures minimal runout and vibration for ultra-smooth operation in precision applications.
- Optimized for Preload: The set is supplied with a light preload (L), eliminating internal clearance for immediate high-stiffness performance upon installation without requiring complex adjustment.
7014 ACE/HCP4ALQBCA Bearing Typical Application Areas
This high-performance bearing set is specifically engineered for the most demanding applications, including:
- High-Frequency Machine Tool Spindles
- Precision Grinding Spindles
- High-Speed Machining Centers
- Advanced Robotics and Automation
- Aerospace Actuation Systems
- Medical and Dental Equipment Spindles
