S7026 ACD/HCP4ADGB
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S7026 ACD/HCP4ADGB
Basic Information
System of measurement
Metric
Weight
5.38 kg
Tolerance class
P4A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
130 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
200 mm
Outside diameter tolerance
-0.004mm to 0
Width
66 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
22.225 mm
Ball quantity
21
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
51525 lbf
Radial static load rating
67500 lbf
Limiting speed
11 X 1000 rpm
Lubrication
Grease
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Light / Class B
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
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In Stock
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S7026 ACD/HCP4ADGB Bearing Product Overview & Core Advantages
The S7026 ACD/HCP4ADGB is a precision double-row angular contact ball bearing designed for demanding applications requiring exceptional accuracy and reliability. Engineered to simultaneously handle combined radial and bidirectional axial loads, this bearing features a light preload (Class B) and universal matchable (SU) design, allowing for flexible mounting arrangements in high-precision systems. Its construction with ceramic balls and a phenolic cage contributes to superior high-speed performance and reduced rotational inertia, making it an ideal solution for machine tool spindles and other precision machinery.
Model Code Breakdown
| S7026 | Basic bearing series and size designation (130mm bore, 200mm OD). |
| ACD | Angular Contact, Double Row design. |
| HCP4A | Indicates a high-precision P4A tolerance class and specific internal design for optimal performance. |
| DGB | Signifies a sealed bearing pre-lubricated with grease, offering protection from contamination and extended service life. |
S7026 ACD/HCP4ADGB Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double-row angular contact design provides superior rigidity, enabling stable support under combined loads. With a 25° contact angle, it efficiently manages significant bidirectional axial forces in addition to radial loads.
- Exceptional High-Speed Capability: The combination of ceramic balls and a lightweight phenolic cage minimizes centrifugal forces and friction, allowing for a high limiting speed of 11,000 rpm. This makes it a premier high-speed bearing.
- Precision & Longevity: Manufactured to P4A tolerance class for extreme dimensional accuracy and running precision. The integral seals and pre-applied grease lubrication provide robust contamination protection, contributing to a maintenance-free operational lifespan within a temperature range of -30°C to 110°C.
S7026 ACD/HCP4ADGB Bearing Typical Application Areas
This bearing is ideally suited for high-precision, high-speed rotational equipment, including:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Equipment
- Aerospace & Defense Systems
- Medical & Laboratory Instrumentation
