71902 ACD/P4ATBTA Super Precision Single Row Angular Contact Ball Bearing 7902
71902 ACD/P4ATBTA 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.
The 71902 ACD/P4ATBTA bearing features a bore diameter of 15 mm, outside diameter of 28 mm, and width of 21 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 ACD/P4ATBTA |
| 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: EL/Extra Light/Class A
|
| Load and Speed |
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
|
Performance Features of 71902 ACD/P4ATBTA Bearing
- 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
Applications of the 71902 ACD/P4ATBTA Bearing
The 71902 ACD/P4ATBTA 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
