71909 CD/P4A 45*68*12 mm Super Precision High Capacity Single Row
Angular Contact Ball Bearing High Speed
Super-precision, high-capacity D design, single row angular contact
ball bearing
The 71909 CD/P4A 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, delivers superior performance and reliability for
applications requiring high rotational accuracy and stability.
| Part Number | 71909 CD/P4A |
| 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 | 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 | 0.13 kg |
| Matched Arrangement | No |
| Universal Matching Bearing | No |
| Preload | Not applicable |
| Load and Speed | Dynamic Radial Load | 13000 N |
| Static Radial Load | 9500 N |
| Reference Speed For Grease (r/min) | 19,000 rpm |
| Limiting Speed For Oil(r/min) | 32,000 rpm |
What's the Performance Features of 71909 CD/P4A Bearing?
The 71909 CD/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 71909 CD/P4A Bearing?
The 71909 CD/P4A bearing, a precision angular contact ball bearing , is widely used across
various industrial applications, as outlined below:
1. Machine Tools
- Used in CNC spindles, lathes, milling machines, and grinding
machines for high precision and stability.
2. Industrial Equipment
- Found in turbo pumps, compressors, blowers, and automated machines
like plastic pipe lines and screen printers, handling radial and
axial loads .
3. Heavy Machinery
- Works in mining equipment, waste treatment systems, and
construction machinery, withstanding tough conditions and heavy
loads.
4. Environmental and Energy Systems
- Applied in wastewater treatment, noise-reduction devices, and
automotive testing equipment for reliable performance.
5. General Machinery
- Supports textile machines, construction tools, winches, and
accessories like chucks, ensuring smooth operation.
6. Special Applications
- Used in welding tools, water pumps, lab mixers, and precision
instruments like broaching machines.
| 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!
