729 CD/P4A Super Precision High Capacity Single Row Angular Contact Ball Bearing
729 CD/P4A 9×26×8 mm Super Precision High Capacity Single Row Angular Contact Ball Bearing High Speed Spindle Tools CNC Machine
The 729 CD/P4A bearing features a bore diameter of 9 mm, outside diameter of 26 mm, and width of 8 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 |
729 CD/P4A |
| Bearing Type |
Angular Contact |
| Measurement Unit |
Metric |
| Dimensions |
| Inner Bore Diameter (d) |
9 mm |
| Inner Bore Diameter Tolerance |
-0.004mm to 0 |
| Outer Bore Diameter (D) |
26 mm |
| Outer Bore Diameter Tolerance |
-0.005mm to 0 |
| Width (B) |
8 mm |
| Width Tolerance |
-0.2mm to 0 |
| Specifications |
| Contact Angle |
15° (25°, 40° Available) |
| Material |
Chrome Steel |
| Cage Material |
Phenolic |
| Number of Rows |
Single Row |
| Seal Type |
Open |
| Temperature Range |
-30°C to 150°C |
| Lubrication |
Oil or Grease |
| Tolerance Class |
P4A (better than P4) |
| Weight |
0.020 kg |
| Matched Arrangement |
No |
| Universal Matching Bearing |
No |
| Preload |
Not applicable |
| Load and Speed |
| Dynamic Radial Load |
4100 N |
| Static Radial Load |
1660 N |
| Reference Speed For Grease (r/min) |
67,000 rpm |
| Limiting Speed For Oil (r/min) |
100,000 rpm |
Performance Features of 729 CD/P4A Bearing
The 729 CD/P4A bearing is engineered for high-performance applications, featuring P4A grade precision and an angular contact design for handling significant radial and axial loads. Optimized for high-speed operation with minimal vibration, it offers smooth, quiet performance and is constructed from premium materials to ensure durability and longevity. This bearing maintains high precision during operation, making it ideal for critical applications in machine tools, automation, aerospace, medical devices, and other industries requiring exceptional accuracy and reliability.
Applications of the 729 CD/P4A Bearing
The 729 CD/P4A super-precision angular contact ball bearing is renowned for its high rigidity, fast speeds, and long life, making it ideal for high-precision applications in the machine tool industry, particularly in spindle solutions. Beyond machine tools, it is widely used in precision machinery, aerospace, automotive, electric motor manufacturing, and robotics, where its exceptional performance ensures accuracy, stability, and efficiency in critical operations.
Certifications:
RoHS & REACH, IATF16949:2016
Key Features:
- High Speed and Stiffness
- High Running Accuracy
- High Load Carrying Capacity
Services:
- OEM & ODM Customized Services
- Online Support, Professional Service
- Samples available - Please Contact Us
Size Options:
Standard sizes available. For custom sizes, please contact us.
Manufacturing:
Factory Manufacturer - Yes
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