71902 ACD/P4ATBTB Super Precision Angular Contact Ball Bearing with P4A Precision Grade and 15x28x21 mm Dimensions for High Speed Operation
Matched set of three super-precision, high-capacity, D design, single row angular contact ball bearings featuring high-speed capabilities.
The 71902 ACD/P4ATBTB bearing with bore diameter of 15 mm, outside diameter of 28 mm, and width of 21 mm 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 | 71902 ACD/P4ATBTB |
| Bearing Type | Angular Contact |
| Measurement Unit | Metric |
| Dimensions |
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 |
| Specifications |
Contact Angle: 25° (15°, 40° Available) Material: Chrome Steel Cage Material: Phenolic Number of Rows: 3 (3× Single Row) Seal Type: Open 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: TBT<>> back-to-back (<>) and tandem (>>) 3 bearings Universal Matching Bearing: No Preload: L/Light/Class B |
| Load and Speed |
Dynamic Radial Load: 8190 N Static Radial Load: 5400 N Reference Speed For Grease: 53,000 rpm Limiting Speed For Oil: 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 wide temperature range
The 71902 ACD/P4ATBTB bearing is a high-performance precision angular contact ball bearing known for its high load capacity, excellent wear resistance, and superior accuracy. It is widely used in critical applications across various industries:
- Machine tool spindles and gearboxes
- Metallurgical rolling mills
- Wind turbine gearboxes and generator bearings in the power sector
- Blast furnaces and converters in the steel industry
- Cranes and excavators in construction machinery
- Road rollers and pavers in road construction equipment
- Railway vehicle gearboxes and drive shafts
Its ability to ensure stable, reliable operation under harsh conditions makes it an essential component for enhancing performance and longevity in these demanding sectors.
| 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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