7026 ACD/P4AQBCB
7000 Series Super Precision Angular Contact Ball Bearings
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7026 ACD/P4AQBCB Bearing Product Overview & Core Advantages
The 7026 ACD/P4AQBCB is a precision quadruplex angular contact ball bearing designed for applications requiring exceptional rigidity and load capacity. This P4A tolerance class bearing is configured in a Back-to-Back (QBC) arrangement, enabling it to withstand combined radial and axial loads from multiple directions simultaneously. Its optimized design provides high rigidity and stable rotational accuracy, making it ideal for high-precision machinery operating under demanding conditions.
7026 ACD/P4AQBCB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7026 | Basic bearing designation (130mm bore, 200mm OD) |
| ACD | Angular Contact Design with 25° contact angle |
| P4A | High precision tolerance class (superior to ABEC 7) |
| QBC | Quadruplex Back-to-Back matched arrangement |
| B | Light preload classification |
7026 ACD/P4AQBCB Bearing Structural Features & Performance Benefits
Enhanced Rigidity & Load Capacity: The quadruplex back-to-back configuration creates an extremely rigid bearing system capable of handling substantial combined loads. With a radial dynamic load rating of 83,475 lbf and static load rating of 135,000 lbf, this bearing delivers exceptional performance under heavy operating conditions.
Precision Performance: Manufactured to P4A tolerance class standards, the bearing ensures minimal runout and consistent dimensional accuracy. The 25° contact angle provides optimal balance between radial and axial load capacity.
High-Speed Capability: Featuring a phenolic cage and precision-ground chrome steel balls, the bearing achieves a limiting speed of 11,000 rpm. The lightweight cage material reduces centrifugal forces, enhancing high-speed stability.
Thermal Stability: The phenolic cage material and chrome steel construction maintain dimensional stability across the operating temperature range of -30°C to 110°C, ensuring reliable performance in varying thermal conditions.
7026 ACD/P4AQBCB Bearing Typical Application Areas
- Machine Tool Spindles - High-precision machining centers and grinding machines
- Industrial Gearboxes - Heavy-duty transmission systems requiring high rigidity
- Precision Rotary Tables - Indexing and positioning equipment
- Aerospace Actuation Systems - Flight control mechanisms and landing gear systems
- Robotic Arm Joints - High-precision automation and robotics applications
- Medical Imaging Equipment - CT scanners and MRI systems requiring smooth, precise rotation
