Manufactured by CHG Bearing, the 71909 FE/P4ADBA 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 FE/P4ADBA - Super-precision Angular Contact Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 71909 FE/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-speed E 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) | 45 mm |
| Width (B) | 24 mm |
| Outer Diameter (D) | 68 mm |
| Contact Angle α (°) | 18 ° |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 16.5 kN |
| Basic Static Load Rating C₀ (kN) | 13.4 kN |
| Material | |
| Weight (kg) | 0.263 kg |
71909 FE/P4ADBA 68 mm 45 mm 24 mm Frequently Asked Questions about 71909 FE/P4ADBA Super-precision Angular Contact Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Standard batches of CHG Bearing 71909 FE/P4ADBA conform strictly to ISO Class Normal (ABEC-1). For high-precision machine tool spindles, gearboxes, or robotics requiring tighter runouts, CHG Bearing can provide custom batches graded to ISO Class 6 (P6/ABEC-3) or ISO Class 5 (P5/ABEC-5) with 100% micrometer verification.
Every production batch of CHG Bearing 71909 FE/P4ADBA 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.
Built for demanding industrial environments, the 71909 FE/P4ADBA 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.
Absolutely. The CHG Bearing 71909 FE/P4ADBA Super-precision Angular Contact Ball Bearings is a 1:1 direct interchange for renowned brands, matching part numbers: SKF 71909 FE/P4ADBA, FAG 71909 FE/P4ADBA, NSK 71909 FE/P4ADBA. It shares identical envelope boundary dimensions, load capacities, and shaft fits, allowing instant drop-in replacement without retrofitting your machinery.
