71910 CB/HCP4A Super Precision Single Row Angular Contact Ball Bearing 7910
Product Overview
71910 CB/HCP4A 50×72×12 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 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.
Technical Specifications
| Part Number | 71910 CB/HCP4A |
| Bearing Type | Angular Contact |
| Measurement Unit | Metric |
| Inner Bore Diameter (d) | 50 mm |
| Inner Bore Diameter Tolerance | -0.006mm to 0 |
| Outer Bore Diameter (D) | 72 mm |
| Outer Bore Diameter Tolerance | -0.007mm to 0 |
| Width (B) | 12 mm |
| Width Tolerance | -0.2mm to 0 |
| Contact Angle | 15° (25°,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 | Oil, Grease |
| Tolerance Class | P4A better than P4 (ABEC-7) |
| Weight | 0.13 kg |
| Dynamic Radial Load | 7800 N |
| Static Radial Load | 6300 N |
| Reference Speed For Grease (r/min) | 30,000 rpm |
| Limiting Speed For Oil (r/min) | 45,000 rpm |
Product Images
Performance Features
- 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
Precision Machine Tool Field
- Machine Tool Spindles: P4-level accuracy and hybrid ceramic material meet requirements of CNC machines and machining center spindles for high-speed rotation and radial/axial rigidity
- Machine Tool Functional Components: Used in table guideways, screw support positions to ensure positioning accuracy and dynamic stability
Printing and Packaging Equipment
- High-Speed Printing Machines: Supports high-speed operation of rollers in equipment like Heidelberg printing machines
- Automated Packaging Lines: Critical role in precision transmission for slitting machines and die-cutting machines
Aerospace and Scientific Instruments
- Aero-Engine Test Stands: Withstands extreme speeds and temperature conditions in turbo-shaft simulation test systems
- High-Precision Measuring Equipment: Applied to rotating components of precision instruments like laser interferometers and spectrometers
Special Industrial Equipment
- High-Speed Electric Spindles: PCB drilling machines and micro-tool processing equipment
- Robot Joints: Used in collaborative robot harmonic reducer supports, balancing high rigidity and low friction characteristics
Certifications & Services
Certificates: RoHS & REACH, IATF16949:2016
Features: High Speed and Stiffness, High Running Accuracy, High Load Carrying Capacity
Services: OEM&ODM Customized Services, Online Support, Professional Service
Sizes: Standard, For custom sizes please contact us
Factory Manufacturer: Yes