Manufactured by CHG Bearing, the 71909 ACD/P4ADBC is a precision Super-precision Angular Contact Ball Bearings. Key dimensional parameters include a 45 mm bore diameter, a 68 mm outer diameter, and a 24 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.

71909 ACD/P4ADBC - Super-precision Angular Contact Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 71909 ACD/P4ADBC |
| 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 | Medium Preload |
| Tolerance Class | P4A |
| Bearing Material | Bearing Steel |
| Sealing | Open |
| Dimensions | |
| Bore Diameter (d) | 45 mm |
| Width (B) | 24 mm |
| Outer Diameter (D) | 68 mm |
| Contact Angle α (°) | 25 ° |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 19.9 kN |
| Basic Static Load Rating C₀ (kN) | 18 kN |
| Material | |
| Weight (kg) | 0.262 kg |
71909 ACD/P4ADBC 68 mm 45 mm 24 mm Frequently Asked Questions about 71909 ACD/P4ADBC Super-precision Angular Contact Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Every production batch of CHG Bearing 71909 ACD/P4ADBC Super-precision Angular Contact Ball Bearings comes with complete traceability. Upon shipment, CHG Bearing can provide EN 10204 3.1 Material Test Reports (MTR), Certificates of Conformity (CoC), spectral chemical composition analysis, and dimensional inspection sheets.
Model 71909 ACD/P4ADBC is manufactured by CHG Bearing in standard Normal clearance (CN) for ambient temperature transmission, and C3 or C4 clearance for heavy duty applications. C3 clearance compensates for radial shrinkage caused by tight shaft press-fits (bore 45 mm) and steep thermal gradients between inner and outer rings.
Sourcing 71909 ACD/P4ADBC directly from CHG Bearing eliminates intermediate brokerage markups while granting you factory-direct engineering backup, rigorous ISO-certified quality assurance, competitive volume wholesale pricing, and dependable supply chain stability for Super-precision Angular Contact Ball Bearings.
As a primary manufacturer, CHG Bearing supports both trial batch evaluations and container-load supply for 71909 ACD/P4ADBC. Standard catalog sizes are stocked for rapid 3–7 day dispatch, while high-volume OEM production runs typically dispatch within 30–45 days.
