71902 CDGA/P4A Precision Ball Bearing 15x28x7 mm High Capacity Angular Contact Ball Bearing with P4A Precision Grade
71902 CDGA/P4A 15×28×7 mm Super Precision High Capacity Single Row Angular Contact Ball Bearing - High Speed
Super-precision, high-capacity, universally matchable single row angular contact ball bearing featuring 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 CDGA/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 | 15° (25°, 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 | 3970 N |
| Static Radial Load | 1900 N |
| Reference Speed For Grease (r/min) | 60,000 rpm |
| Limiting Speed For Oil (r/min) | 90,000 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 CDGA/P4A bearing is distinguished by its superior precision and load capacity, making it essential in various industries:
- Precision machinery like machine tools and measuring instruments
- Metallurgical rolling mills for enhanced production efficiency
- Wind turbine gearboxes in the power industry
- Construction and mining machinery (cranes, excavators, conveyor systems)
- Road construction equipment and railway vehicles
Its robust design, wear resistance, and ability to handle significant radial and axial loads make it a vital component across these diverse and demanding applications.
| Certificates | RoHS & REACH, IATF16949:2016 |
| Features | High Speed and Stiffness, High Running Accuracy, High Load Carrying Capacity |
| Service | OEM & ODM Customized Services |
| Samples | Please Contact Us |
| Support | Online Support, Professional Service |
| Size Options | Standard, For custom sizes please contact us |
| Manufacturer | Factory Manufacturer |
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