Manufactured by CHG Bearing, the S71909 ACB/HCP4ADT 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.

S71909 ACB/HCP4ADT - Super-precision Angular Contact Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | S71909 ACB/HCP4ADT |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Super-precision Angular Contact Ball Bearing |
| Seal Type | Non-contact Seal |
| Number of Rows | 2 |
| Contact Type | Normal Contact (Two-point Contact) |
| Ring Type | Integral Inner and Outer Rings |
| Design | High-speed B Design |
| Universally Matchable | No |
| Matched Arrangement | Tandem (DT) |
| Number of Bearings in Set | 2 |
| Axial Clearance / Preload | Not Applicable |
| Tolerance Class | P4A |
| Bearing Material | Hybrid (Steel Rings / Ceramic Balls) |
| Sealing | Sealed on Both Sides |
| Lubricant | Grease |
| 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) | 11.4 kN |
| Basic Static Load Rating C₀ (kN) | 11 kN |
| Material | |
| Weight (kg) | 0.266 kg |
S71909 ACB/HCP4ADT 68 mm 45 mm 24 mm Frequently Asked Questions about S71909 ACB/HCP4ADT 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 S71909 ACB/HCP4ADT with a precision bore diameter (d) of 45 mm, an outside diameter (D) of 68 mm, and a nominal ring width (B) of 24 mm. This configuration yields an effective cross-sectional wall thickness of 11.5 mm and an envelope ratio (D/d) of 1.51, delivering compact rigidity for OEM machinery housings.
To match diverse operational dynamics, CHG Bearing supplies S71909 ACB/HCP4ADT with multiple cage configurations: high-strength pressed steel ribbon cages for standard duty, solid machined brass cages (M/CA) for heavy vibration and shock loads, or lightweight glass-fiber reinforced polyamide cages (TN9/TVP) for high acceleration and ultra-low noise.
Yes, CHG Bearing works closely with industrial OEMs and brand distributors. We offer turnkey custom engineering for S71909 ACB/HCP4ADT, including laser-etched customer logos, custom internal radial clearances, specialized grease formulations, and bespoke protective packaging.
Every production batch of CHG Bearing S71909 ACB/HCP4ADT 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.
