71909 ACB/HCP4A 45*68*12 mm Super Precision High Capacity Single Row Angular Contact Ball Bearing Hybrid Ceramic Balls High Speed
Super-precision, high-speed B design, single row angular contact ball bearing
The 71909 ACB/HCP4A bearing,bore diameter is 45 mm, outside diameter is 68 mm,width is 12 mm,featuring precise dimensions, high static load capacity, P4A precision grade, and hybrid ceramic balls, delivers superior performance and reliability for applications requiring high rotational accuracy and stability.
| Part Number | 71909 ACB/HCP4A |
| Bearing Type | Angular Contact |
| Measurement Unit | Metric |
| Dimensions | Inner Bore Diameter (d) | 45 mm |
| Inner Bore Diameter Tolerance | -0.006mm to 0 |
| Outer Bore Diameter (D) | 68 mm |
| Outer Bore Diameter Tolerance | -0.007mm to 0 |
| Width (B) | 12 mm |
| Width Tolerance | -0.2mm to 0 |
| Specifications | Contact Angle | 25° (15°,40° Available) |
| Material | Hybrid (Chrome Steel Rings, Ceramic Balls) |
| 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 | 0.13 kg |
| Matched Arrangement | No |
| Universal Matching Bearing | No |
| Preload | Not applicable |
| Load and Speed | Dynamic Radial Load | 7020 N |
| Static Radial Load | 5500 N |
| Reference Speed For Grease (r/min) | 30,000 rpm |
| Limiting Speed For Oil(r/min) | 45,000 rpm |
What's the Performance Features of 71909 ACB/HCP4A Bearing?
The 71909 ACB/HCP4A 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 71909 ACB/HCP4A Bearing?
The 71909 ACB/HCP4A bearing is an ultra-precision angular contact ball bearing , and its design features (such as high precision and high-speed capability) determine its primary applications in the following fields:
1. Precision Machine Tools and Spindles
Used in CNC machine spindles, grinding spindles, and tool magazine systems, supporting high-speed cutting and low vibration .
2. Aerospace Equipment
Applied in precision instruments and transmission systems, such as flight controls and turbo machinery supports.
3. High-Speed Rotating Equipment
Suitable for high-speed devices like centrifuges and motor spindles.
4. High-Precision Instruments
Used in semiconductor equipment and optical instruments, relying on P4 accuracy and low friction.
| 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 |
If you need more detailed information , feel free to ask!
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71909 ACB/HCP4A Super Precision Single Row Angular Contact Ball Bearing 7909 Images
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