S71904 ACD/P4A Super Precision Single Row Angular Contact Ball Bearing 7904 2RZ
S71904 ACD/P4A 20×37×9 mm Super Precision High Capacity Single Row Angular Contact Ball Bearing - High Speed
Super-precision, high-capacity, single row angular contact ball bearing with seals. The S71904 ACD/P4A bearing features a bore diameter of 20 mm, outside diameter of 37 mm, and width of 9 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 |
S71904 ACD/P4A |
| Bearing Type |
Angular Contact |
| Measurement Unit |
Metric |
| Dimensions |
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
|
| Specifications |
Contact Angle: 25° (15°, 40° Available)
Material: Chrome Steel
Cage Material: Phenolic
Number of Rows: 1 Single Row
Seal Type: Seal on both sides
Temperature Range: -30°C to 150°C
Lubrication: Grease
Tolerance Class: P4A better than P4 (ABEC-7)
Weight: 0.036 kg
Matched Arrangement: No
Universal Matching Bearing: No
Preload: Not applicable
|
| Load and Speed |
Dynamic Radial Load: 5720 N
Static Radial Load: 3050 N
Reference Speed For Grease (r/min): 40,000 rpm
Limiting Speed For Oil (r/min): 60,000 rpm
|
Performance Features of S71904 ACD/P4A Bearing
- Engineered for high-precision and high-performance applications
- 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 of the S71904 ACD/P4A Bearing
The S71904 ACD/P4A bearing is distinguished by its high speed and precision, making it ideal for applications in:
- Electric spindles
- High-speed machining centers
- Milling machines
- Internal grinding machines
- Woodworking machinery
- Metal cutting machine tools
Its ability to maintain stability and performance under high loads and speeds ensures enhanced accuracy and efficiency, making it a critical component in modern manufacturing processes for achieving reliable and high-precision operation across various high-performance industrial equipment.
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
