S71907 ACB/P4ADBB
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
S71907 ACB/P4ADBB Bearing Product Overview & Core Advantages
The S71907 ACB/P4ADBB is a precision duplex angular contact ball bearing designed for high-performance applications requiring exceptional rigidity and running accuracy. This matched back-to-back (DB) arrangement is preloaded to Light / Class B standards, providing superior system stability and resistance to complex combined loads, including radial and bidirectional axial forces. Manufactured to a P4A tolerance class, it offers extremely tight dimensional control for applications demanding high rotational accuracy and reliability in a compact design.
S71907 ACB/P4ADBB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7 | Series designation for high-precision angular contact bearings |
| 1907 | Bore diameter: 35 mm, Outside diameter: 55 mm, Width: 20 mm |
| ACB | Contact Angle of 25° |
| P4A | High precision tolerance class (superior to ABEC 7) |
| DB | Duplex Back-to-Back mounting arrangement |
S71907 ACB/P4ADBB Bearing Structural Features & Performance Benefits
High Rigidity & Stability: The back-to-back duplex configuration creates a wide effective spread, significantly increasing moment rigidity and providing exceptional operational stability under complex loading conditions.
Superior Load Capacity: With a 25° contact angle and duplex design, this bearing is engineered to handle significant combined radial and axial loads from both directions simultaneously.
Precision Performance: The P4A tolerance class ensures minimal runout and vibration, while the phenolic resin cage offers excellent dimensional stability and reduced friction, contributing to smooth operation at high speeds.
Ready-to-Install: As a pre-matched and preloaded set, this bearing eliminates complex mounting procedures and ensures optimal performance right from installation.
S71907 ACB/P4ADBB Bearing Typical Application Areas
This high-precision duplex bearing is ideally suited for applications requiring extreme accuracy and rigidity, including:
- Machine Tool Spindles for high-speed milling and grinding operations
- Precision Gearboxes and transmission systems
- High-Frequency Motor Spindles
- Robotic Arm Joints and precision positioning systems
- Medical Equipment requiring high rotational accuracy
