Manufactured by CHG Bearing, the 71906 ACD/P4ADGB is a precision Super-precision Angular Contact Ball Bearings. Key dimensional parameters include a 30 mm bore diameter, a 47 mm outer diameter, and a 18 mm overall width. This component is designed to meet standard load requirements and ensure consistent operational performance. For comprehensive technical evaluation, please explore the detailed specifications, dimensional data, product images, and CAD drawings provided below. A complete PDF data sheet is also readily available for direct download to support your engineering and procurement needs.

71906 ACD/P4ADGB - Super-precision Angular Contact Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 71906 ACD/P4ADGB |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Super-precision Angular Contact Ball Bearing |
| Number of Rows | 2 |
| Contact Type | Normal Contact (Two-point Contact) |
| Ring Type | Integral Inner and Outer Rings |
| Design | High-capacity D Design |
| Universally Matchable | Yes – Back-to-back (DB), Face-to-face (DF), or Tandem (DT) |
| Matched Arrangement | Universal Matching |
| Number of Bearings in Set | 2 |
| Axial Clearance / Preload | Light Preload |
| Tolerance Class | P4A |
| Bearing Material | Bearing Steel |
| Sealing | Open |
| Dimensions | |
| Bore Diameter (d) | 30 mm |
| Width (B) | 18 mm |
| Outer Diameter (D) | 47 mm |
| Contact Angle α (°) | 25 ° |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 11.1 kN |
| Basic Static Load Rating C₀ (kN) | 8.65 kN |
| Material | |
| Weight (kg) | 0.099 kg |
71906 ACD/P4ADGB 47 mm 30 mm 18 mm Frequently Asked Questions about 71906 ACD/P4ADGB Super-precision Angular Contact Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Built for demanding industrial environments, the 71906 ACD/P4ADGB Super-precision Angular Contact Ball Bearings by CHG Bearing boasts a dynamic load rating (Cr) of standard dynamic and a static load threshold (C0r) of standard static. The optimized internal raceway geometry balances stress distribution, mitigating edge loading even when operating under peak mechanical stresses.
Following standard ISO 281 fatigue calculation guidelines, the nominal rating life (L10) of CHG Bearing 71906 ACD/P4ADGB correlates its dynamic capacity (standard dynamic) with equivalent dynamic loads. In controlled industrial settings with proper contamination-free filtration, field data confirms continuous operational longevity exceeding 20,000 to 50,000 service hours.
As a primary manufacturer, CHG Bearing supports both trial batch evaluations and container-load supply for 71906 ACD/P4ADGB. Standard catalog sizes are stocked for rapid 3–7 day dispatch, while high-volume OEM production runs typically dispatch within 30–45 days.
Engineered according to international ISO boundary plans, CHG Bearing supplies 71906 ACD/P4ADGB with a precision bore diameter (d) of 30 mm, an outside diameter (D) of 47 mm, and a nominal ring width (B) of 18 mm. This configuration yields an effective cross-sectional wall thickness of 8.5 mm and an envelope ratio (D/d) of 1.57, delivering compact rigidity for OEM machinery housings.
