Manufactured by CHG Bearing, the 709 ACD/P4ADBA is a precision Super-precision Angular Contact Ball Bearings. Key dimensional parameters include a 9 mm bore diameter, a 24 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.

709 ACD/P4ADBA - Super-precision Angular Contact Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 709 ACD/P4ADBA |
| 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 | No |
| Matched Arrangement | Back-to-back (DB) |
| Number of Bearings in Set | 2 |
| Axial Clearance / Preload | Extra-light Preload |
| Tolerance Class | P4A |
| Bearing Material | Bearing Steel |
| Sealing | Open |
| Dimensions | |
| Bore Diameter (d) | 9 mm |
| Width (B) | 14 mm |
| Outer Diameter (D) | 24 mm |
| Contact Angle α (°) | 25 ° |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 5.53 kN |
| Basic Static Load Rating C₀ (kN) | 3.1 kN |
| Material | |
| Weight (kg) | 0.03 kg |
709 ACD/P4ADBA 24 mm 9 mm 14 mm Frequently Asked Questions about 709 ACD/P4ADBA Super-precision Angular Contact Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Engineered according to international ISO boundary plans, CHG Bearing supplies 709 ACD/P4ADBA with a precision bore diameter (d) of 9 mm, an outside diameter (D) of 24 mm, and a nominal ring width (B) of 14 mm. This configuration yields an effective cross-sectional wall thickness of 7.5 mm and an envelope ratio (D/d) of 2.67, delivering compact rigidity for OEM machinery housings.
Absolutely. The CHG Bearing 709 ACD/P4ADBA Super-precision Angular Contact Ball Bearings is a 1:1 direct interchange for renowned brands, matching part numbers: SKF 709 ACD/P4ADBA, FAG 709 ACD/P4ADBA, NSK 709 ACD/P4ADBA. It shares identical envelope boundary dimensions, load capacities, and shaft fits, allowing instant drop-in replacement without retrofitting your machinery.
To safeguard CHG Bearing 709 ACD/P4ADBA against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (9 mm x 24 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
The CHG Bearing 709 ACD/P4ADBA is rated for limiting speeds up to standard rated RPM under forced oil-mist or circulating oil lubrication regimes. When lubricated with factory-filled synthetic high-speed grease, safe continuous velocity is maintained at approximately 75% to 85% of the maximum nominal limit, preventing thermal runaway.
