71902 ACE/P4A 15*28*7 mm Super Precision High Capacity Single Row
Angular Contact Ball Bearing High Speed
Super-precision, high-speed E design, single row angular contact
ball bearing
The 71902 ACE/P4A bearing,bore diameter is 15 mm, outside diameter is 28 mm,width is
7 mm,featuring precise dimensions, high static load capacity, P4A
precision grade, delivers superior performance and reliability for
applications requiring high rotational accuracy and stability.
| Part Number | 71902 ACE/P4A |
| 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 | -0.005mm to 0 |
| Width (B) | 7 mm |
| Width Tolerance | -0.2mm to 0 |
| Specifications | 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 | No |
| Preload | Not applicable |
| Load and Speed | 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 |
What's the Performance Features of 71902 ACE/P4A Bearing?
The 71902 ACE/P4A angular contact ball bearing is engineered for
high-precision and high-performance applications, featuring very
tight tolerances suitable for precise machinery, the 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.
What's the Applications of the 71902 ACE/P4A Bearing?
The 71902 ACE/P4A bearing is a precision angular contact ball bearing featuring high
load capacity and excellent heat resistance, making it suitable for
demanding applications across various industries. It is widely used
in machine tools (like machining centers, milling machines, and
grinders), semiconductor manufacturing (for silicon wafer fault
detection units), marine equipment (such as gyro stabilizers),
medical devices, and other high-precision sectors including
racing/supercar wheel hubs and telescopes. Its robust design
ensures reliable performance, enhancing precision and efficiency in
these diverse and challenging fields.
| 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 |
