Manufactured by CHG Bearing, the 71806 ACD/P4DGB is a precision Super-precision Angular Contact Ball Bearings. Key dimensional parameters include a 30 mm bore diameter, a 42 mm outer diameter, and a 14 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.

71806 ACD/P4DGB - Super-precision Angular Contact Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 71806 ACD/P4DGB |
| 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 | P4 |
| Bearing Material | Bearing Steel |
| Sealing | Open |
| Dimensions | |
| Bore Diameter (d) | 30 mm |
| Width (B) | 14 mm |
| Outer Diameter (D) | 42 mm |
| Contact Angle α (°) | 25 ° |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 6.76 kN |
| Basic Static Load Rating C₀ (kN) | 7.1 kN |
| Material | |
| Weight (kg) | 0.052 kg |
71806 ACD/P4DGB 42 mm 30 mm 14 mm Frequently Asked Questions about 71806 ACD/P4DGB Super-precision Angular Contact Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Absolutely. The CHG Bearing 71806 ACD/P4DGB Super-precision Angular Contact Ball Bearings is a 1:1 direct interchange for renowned brands, matching part numbers: SKF 71806 ACD/P4DGB, FAG 71806 ACD/P4DGB, NSK 71806 ACD/P4DGB. It shares identical envelope boundary dimensions, load capacities, and shaft fits, allowing instant drop-in replacement without retrofitting your machinery.
To safeguard CHG Bearing 71806 ACD/P4DGB against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (30 mm x 42 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
Yes, CHG Bearing works closely with industrial OEMs and brand distributors. We offer turnkey custom engineering for 71806 ACD/P4DGB, including laser-etched customer logos, custom internal radial clearances, specialized grease formulations, and bespoke protective packaging.
Engineered according to international ISO boundary plans, CHG Bearing supplies 71806 ACD/P4DGB with a precision bore diameter (d) of 30 mm, an outside diameter (D) of 42 mm, and a nominal ring width (B) of 14 mm. This configuration yields an effective cross-sectional wall thickness of 6.0 mm and an envelope ratio (D/d) of 1.4, delivering compact rigidity for OEM machinery housings.
