7019 ACD/P4AQBCC
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7019 ACD/P4AQBCC
Basic Information
System of measurement
Metric
Weight
4.84 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
95 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
145 mm
Outside diameter tolerance
-0.004mm to 0
Width
96 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
15.875 mm
Ball quantity
21
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
45675 lbf
Radial static load rating
68625 lbf
Limiting speed
15 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
Moderate / Class C
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
Price available upon request.
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7019 ACD/P4AQBCC Bearing Product Overview & Core Advantages
The 7019 ACD/P4AQBCC is a precision quadruplex matched angular contact ball bearing designed for applications demanding exceptional rigidity and accuracy. This metric system bearing features a 25° contact angle and a Moderate (Class C) preload, making it ideally suited to handle significant combined loads (radial and axial) simultaneously. Its back-to-back quadruplex (QBC) arrangement provides superior moment stiffness and system stability, ensuring high operational precision and reliability in the most demanding machinery.
7019 ACD/P4AQBCC Bearing Model Code Explained, Specifications & Naming Convention
The model number 7019 ACD/P4AQBCC deciphers as follows:
- 7019: Standard bore diameter (95 mm) and series designation.
- A: Signifies a 25° contact angle.
- CD: Indicates Moderate preload (Class C).
- P4A: Denotes a super-precision tolerance class exceeding ABEC 7 standards.
- QBCC: Specifies the bearing is part of a Quadruplex (4 bearings) Back-to-Back (QBC) matched set.
7019 ACD/P4AQBCC Bearing Structural Features & Performance Benefits
- Unmatched Rigidity and System Stability: The quadruplex back-to-back (QBC) matched arrangement of four bearings creates an exceptionally rigid bearing system, capable of resisting complex moment loads and minimizing shaft deflection under heavy combined loads.
- High Load Capacity: With a dynamic load rating of 45,675 lbf and a static load rating of 68,625 lbf, this bearing is engineered for demanding applications requiring long service life under high stress.
- Precision Performance: The P4A super-precision tolerance ensures minimal runout and vibration, which is critical for high-speed, high-accuracy applications. The phenolic cage contributes to smooth operation at the limiting speed.
- Optimized for Matched Sets: As a pre-matched set of four bearings, installation is simplified, and performance is guaranteed, providing consistent preload and optimal load distribution across the entire arrangement.
7019 ACD/P4AQBCC Bearing Typical Application Areas
This high-precision, high-rigidity bearing is ideally deployed in:
- High-Precision Machine Tool Spindles
- High-Rigidity Grinding Spindles
- Industrial Robotics and Precision Gearboxes
- Aerospace Actuation Systems
- Any machinery requiring a pre-configured, ultra-stiff bearing arrangement to handle complex loading conditions.
