71904 ACD/P4A Super Precision Single Row Angular Contact Ball Bearing with P4A Precision Grade High Static Load Capacity and High Speed Operation
Price:
Please contact us,thanks
MOQ:
1000
Delivery Time:
2-4 weeks
Brand:
CNBTZC or OEM
Product Description
71904 ACD/P4A Super Precision Single Row Angular Contact Ball Bearing
Product Overview
Super-precision, high-capacity, single row angular contact ball bearing designed for high-speed applications. The 71904 ACD/P4A bearing features precise dimensions, high static load capacity, P4A precision grade, and delivers superior performance and reliability for applications requiring high rotational accuracy and stability.
Technical Specifications
| Part Number | 71904 ACD/P4A |
| Bearing Type | Angular Contact |
| Measurement Unit | Metric |
| Inner Bore Diameter (d) | 20 mm |
| Inner Bore Diameter Tolerance | -0.005mm to 0 |
| Outer Bore Diameter (D) | 37 mm |
| Outer Bore Diameter Tolerance | -0.006mm to 0 |
| Width (B) | 9 mm |
| Width Tolerance | -0.2mm to 0 |
| 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, Oil |
| Tolerance Class | P4A better than P4 (ABEC-7) |
| Weight | 0.036 kg |
| Dynamic Radial Load | 5720 N |
| Static Radial Load | 3050 N |
| Reference Speed For Grease | 40,000 rpm |
| Limiting Speed For Oil | 60,000 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
The 71904 ACD/P4A bearing is distinguished by its high precision and load capacity, making it ideal for a wide range of applications including:
- Stud welding machines
- Pneumatic welders
- Manual welding machines
- Nonwoven fabric machinery
- CNC curve rail engraving machines
- Various types of pumps
- Plastic machinery
- Flame arrestors
- Deep hole drilling machines
- Manual sandblasting machines
- Crushers
- Shearing machines
- Filter presses
- Self-priming pumps
Certifications & Services
| Certifications | 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 (Custom sizes available upon request) |
| Manufacturer | Factory Manufacturer |
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Beining Intelligent Technology (Zhejiang) Co., Ltd
Location
No.502,Xinxing Third Road,Cixi Intelligent Home Appliance High Tech Industrial Development Zone, Zhejiang,China
Contact Person
Shelley Dong