S71902 ACD/P4ATGB Super Precision Single Row Angular Contact Ball Bearing 15x28x21 mm with P4A Precision Grade for High Speed Operation
S71902 ACD/P4ATGB 15×28×21 mm Super Precision High Capacity Single Row Angular Contact Ball Bearing - High Speed
Matched set of three super-precision, high-capacity, D design, single row angular contact ball bearings with seals. The S71902 ACD/P4ATGB bearing features precise dimensions, high static load capacity, P4A precision grade, delivering superior performance and reliability for applications requiring high rotational accuracy and stability.
| Part Number | S71902 ACD/P4ATGB |
| 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) | 21 mm (3×7 mm) |
| Width Tolerance | -0.2mm to 0 |
| Contact Angle | 25° (15°,40° Available) |
| Material | Chrome Steel |
| Cage Material | Phenolic |
| Number of Rows | 3 (3× Single Row) |
| Seal Type | Seal on both sides |
| Temperature Range | -30°C to 150°C |
| Number of bearings in matched set | 3 |
| Tolerance Class | P4A better than P4 (ABEC-7) |
| Weight | 0.045 kg |
| Matched Arrangement | Universal Matching |
| Universal Matching Bearing | Yes, back-to-back (<>), face-to-face (><) or tandem (>>) DB,DF,DT 3 bearings |
| Preload | L/Light/Class B |
| Dynamic Radial Load | 8190 N |
| Static Radial Load | 5400 N |
| Reference Speed For Grease (r/min) | 53,000 rpm |
| Limiting Speed For Oil (r/min) | 80,000 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 S71902 ACD/P4ATGB bearing is a high-performance precision angular contact ball bearing, distinguished by its high load capacity and accuracy. It finds extensive use in:
- Industrial machinery: machining centers, milling machines, lathes, and grinding machines
- Specialized applications: semiconductor manufacturing, marine gyro stabilizers, telescopes
- High-performance vehicle wheel hubs
- Medical equipment
Its ability to provide stable and reliable performance under demanding conditions makes it an essential component across manufacturing, aerospace, automotive, and healthcare industries.
| 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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