71902 ACEGA/P4A Super Precision Angular Contact Ball Bearing with P4A Precision Grade and High Speed Design 15x28x7 mm
71902 ACEGA/P4A 15×28×7 mm Super Precision High Capacity Single Row Angular Contact Ball Bearing - High Speed
Super-precision, high-speed E design, universally matchable single row angular contact ball bearing.
The 71902 ACEGA/P4A bearing features a bore diameter of 15 mm, outside diameter of 28 mm, and width of 7 mm. With precise dimensions, high static load capacity, and P4A precision grade, it delivers superior performance and reliability for applications requiring high rotational accuracy and stability.
| Part Number | 71902 ACEGA/P4A |
| Bearing Type | Angular Contact |
| Measurement Unit | Metric |
| Inner Bore Diameter (d) | 15 mm |
| Inner Bore Diameter Tolerance | -0.004mm to 0 |
| Outer Bore Diameter (D) | 28 mm |
| Outer Bore Diameter Tolerance | -0.004mm to 0 |
| Width (B) | 7 mm |
| Width Tolerance | -0.2mm to 0 |
| Contact Angle | 25° (15°, 40° Available) |
| Material | Chrome Steel |
| Cage Material | Phenolic |
| Number of Rows | 1 Single Row |
| Seal Type | Open |
| Temperature Range | -30°C to 150°C |
| Lubrication | Grease or Oil |
| Tolerance Class | P4A better than P4 (ABEC-7) |
| Weight | 0.015 kg |
| Matched Arrangement | No |
| Universal Matching Bearing | Yes, back-to-back (<>), face-to-face (><) or tandem (>>) DB, DF, DT 2 bearings |
| Preload | EL/Extra Light/Class A |
| Dynamic Radial Load | 3020 N |
| Static Radial Load | 1340 N |
| Reference Speed For Grease (r/min) | 68,000 rpm |
| Limiting Speed For Oil (r/min) | 106,000 rpm |
- Engineered for high-precision and high-performance applications
- Very tight tolerances suitable for precise machinery
- Ability to handle both radial and axial loads simultaneously
- High-speed operation with stability
- Low torque and friction for energy efficiency
- Enhanced rigidity for accuracy under heavy loads
- Durability with extended service life
- Effective performance across a wide temperature range
The 71902 ACEGA/P4A bearing is a high-precision angular contact ball bearing designed for demanding applications requiring high accuracy and stability. It is widely used in various industrial equipment including:
- Compressors and separators
- Textile machinery and agricultural machinery
- Heavy machinery like compactors
- Industrial fans and gearboxes
- Conveyor systems and papermaking machinery
- Metallurgical equipment and wind turbines
- Mining and construction machinery
Its excellent heat resistance, load capacity, and durability make it essential for ensuring reliable performance and efficiency across these diverse and challenging applications.
| CERTIFICATE | RoHS & REACH, IATF16949:2016 |
| Feature | High Speed and Stiffness, High Running Accuracy, High Load Carrying Capacity |
| Service | OEM&ODM Customized Services |
| Samples | Please Contact Us |
| Service | Online Support, Professional Service |
| Size | Standard, For custom sizes, please contact us |
| Factory Manufacturer | Yes |
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