7026 ACD/P4ADGB
7000 Series Super Precision Angular Contact Ball Bearings
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7026 ACD/P4ADGB Bearing Product Overview & Core Advantages
The 7026 ACD/P4ADGB is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and rigidity. This universal matchable (SU) bearing is part of a matched set of two, enabling it to handle combined loads—significant radial and axial loads in one direction—with high reliability. Manufactured to the exacting P4A tolerance class, it offers superior running accuracy and is preloaded for high rigidity and minimal deflection under operational stresses. Its open design, lubricated for immediate use, and wide temperature range make it a robust solution for high-performance systems.
7026 ACD/P4ADGB Bearing Model Code Explained, Specifications & Naming Convention
- 7026: Basic designation indicating a 130 mm bore, 200 mm outside diameter bearing.
- ACD: Angular Contact, 25° contact angle design, optimized for axial load capacity.
- P4A: High Precision Tolerance Class, denoting extremely tight dimensional and running accuracy tolerances superior to ABEC 7.
- DGB: Universal Matchable (SU) arrangement in a Duplex (DB) configuration. The "D" indicates a duplex pair, and "GB" specifies a universal match (SU) where the two bearings can be mounted in various arrangements (e.g., back-to-back, face-to-face) to achieve different stiffness and moment load characteristics.
7026 ACD/P4ADGB Bearing Structural Features & Performance Benefits
Optimized Contact Angle & Rigidity: The 25° contact angle is engineered to support high axial loads from one direction while accommodating radial loads. When used as a universal matched pair (SU), the system provides high rigidity and stability, crucial for minimizing shaft deflection in precision machinery.
Precision & Speed Performance: Manufactured to P4A tolerance class, this bearing ensures smooth, quiet operation with minimal vibration. The phenolic cage contributes to low friction and high-speed capability, with a limiting speed of 11,000 rpm, making it suitable for high-speed applications.
Superior Load Capacity: With a dynamic load rating of 51,525 lbf and a static load rating of 67,500 lbf, the bearing is built to withstand demanding combined load conditions over a long service life.
Ready-to-Install & Durable: The bearing is pre-lubricated and features an open seal type, allowing for optimal lubrication management in controlled environments. The chrome steel rings and balls provide high wear resistance and durability.
7026 ACD/P4ADGB Bearing Typical Application Areas
- Machine Tool Spindles: High-precision milling, grinding, and turning centers requiring maximum rigidity and accuracy.
- High-Speed Machining Centers: Applications where high rotational speeds and thermal stability are critical.
- Precision Gearboxes: Industrial gearboxes and transmission systems needing to handle combined radial and axial loads.
- Robotic Actuators and Joints: Automation equipment where compact, high-stiffness bearing arrangements are essential.
- Medical and Laboratory Equipment: High-speed centrifuges and precision instruments demanding quiet, vibration-free operation.
