7026 CD/P4ADBD
7000 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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Materials
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7026 CD/P4ADBD Bearing Product Overview & Core Advantages
The 7026 CD/P4ADBD is a precision duplex angular contact ball bearing designed for applications requiring exceptional rigidity and high load capacity. This matched set in a Back-to-Back (DB) arrangement is preloaded to Class D (Heavy), providing outstanding stability and resistance to complex combined loads, including radial and moment loads. Manufactured to P4A tolerance class, it ensures high running accuracy and is ideally suited for high-precision, high-rigidity machinery where uncompromising performance is critical.
Model Code Breakdown
- 7026: Basic designation indicating a 130 mm bore and 200 mm outside diameter.
- C: Denotes a 15° contact angle, optimized for high axial load capacity.
- D: Indicates the bearing is part of a duplex pair with a preload.
- P4A: Specifies the tolerance class, signifying very high precision for both dimensional and running accuracy.
- DB: Defines the matched arrangement as Back-to-Back, which provides high moment rigidity.
7026 CD/P4ADBD Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The duplex Back-to-Back (DB) arrangement and Heavy preload (Class D) create an exceptionally rigid bearing system capable of withstanding heavy combined loads and moment loads. The 15° contact angle further enhances axial load carrying capability.
Precision Performance: Manufactured to P4A tolerance class, this bearing guarantees minimal runout and high rotational accuracy, which is essential for precision spindles and machinery.
Optimized Components: The phenolic resin cage offers low weight and excellent performance at high speeds, contributing to the bearing's limiting speed of 11,000 rpm. The use of high-grade chrome steel for rings and balls ensures durability and long service life.
7026 CD/P4ADBD Bearing Typical Application Areas
This high-precision, high-rigidity bearing is ideally suited for demanding applications such as:
- Machine Tool Spindles (e.g., milling, grinding, and turning centers)
- High-Frequency Motor Spindles
- Precision Gearboxes
- Industrial Pumps and Compressors
- Other high-performance machinery requiring stiff bearing arrangements.
