S71907 ACDTP/HCP4B
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S71907 ACDTP/HCP4B
Basic Information
System of measurement
Metric
Weight
0.068 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
35 mm
Bore diameter tolerance
-0.006mm to 0
Outside diameter
55 mm
Outside diameter tolerance
-0.007mm to 0
Width
10 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
5.556 mm
Ball quantity
21
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
2077 lbf
Radial static load rating
1395 lbf
Limiting speed
28 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Preload
Available
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 335
/ each
In Stock
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S71907 ACDTP/HCP4B Bearing Product Overview & Core Advantages
The S71907 ACDTP/HCP4B is a high-precision, single-row angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and speed. This sealed bearing is preloaded and features a hybrid ceramic ball design, delivering superior performance. Its core advantages include the ability to handle combined loads (radial and axial), outstanding high-speed capabilities due to its phenolic cage and ceramic balls, and long-term reliability with factory-applied lubrication and integral seals.
S71907 ACDTP/HCP4B Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| S7 | Bearing Series | Indicates a high-precision angular contact bearing series. |
| 1907 | Size Designation | Specifies the bearing dimensions: 35mm bore, 55mm OD, 10mm width. |
| AC | Angular Contact | Optimized for combined radial and axial loads. |
| DT | Matched Set (Duplex Tandem) | Two bearings are matched for a specific preload arrangement. |
| P4 | Tolerance Class (P4 / ABEC-7) | Denotes very high precision with tight dimensional and running accuracy tolerances. |
| HC | Hybrid Ceramic | Signifies the use of ceramic balls, which reduce friction and weight for higher speeds. |
S71907 ACDTP/HCP4B Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Design: The use of ceramic balls with a steel ring significantly reduces centrifugal forces, lowers operating temperature, and enables a higher limiting speed (28,000 rpm). This design also offers superior resistance to electrical erosion.
- High Rigidity & Preload: The bearing is supplied with a preload, which eliminates internal clearance. This results in high rigidity, precise shaft positioning, and reduced noise and vibration during operation.
- Optimized for Combined Loads: With a 25° contact angle, this angular contact ball bearing is specifically designed to support significant radial and axial (thrust) loads simultaneously.
- High-Speed Phenolic Cage: The lightweight and robust phenolic resin cage ensures stable operation and guidance of the ceramic balls at very high rotational speeds.
- Sealed & Lubricated for Life: The integral seals protect against contamination, and the factory-applied lubrication ensures consistent performance across the specified temperature range (-30°C to 110°C), making it a low-maintenance solution.
S71907 ACDTP/HCP4B Bearing Typical Application Areas
The S71907 ACDTP/HCP4B is ideal for high-performance machinery where precision, speed, and reliability are paramount. Key application areas include:
- High-Frequency Machine Tool Spindles
- Precision Grinding Spindles
- High-Speed Motors and Drives
- Robotic Arm Joints and Precision Gearboxes
- Aerospace Actuators and Instrumentation
