Manufactured by CHG Bearing, the 71800 ACD/HCP4 is a precision Super-precision Angular Contact Ball Bearings. Key dimensional parameters include a 10 mm bore diameter, a 19 mm outer diameter, and a 5 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.
71800 ACD/HCP4 - Super-precision Angular Contact Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 71800 ACD/HCP4 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Super-precision Angular Contact Ball Bearing |
| Number of Rows | 1 |
| Contact Type | Normal Contact (Two-point Contact) |
| Ring Type | Integral Inner and Outer Rings |
| Design | High-capacity D Design |
| Universally Matchable | No |
| Axial Clearance / Preload | Not Applicable |
| Tolerance Class | P4 |
| Bearing Material | Hybrid (Steel Rings / Ceramic Balls) |
| Sealing | Open |
| Dimensions | |
| Bore Diameter (d) | 10 mm |
| Width (B) | 5 mm |
| Outer Diameter (D) | 19 mm |
| Contact Angle α (°) | 25 ° |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 1.78 kN |
| Basic Static Load Rating C₀ (kN) | 0.93 kN |
| Limiting Speed – Grease (r/min) | 85000 r/min |
| Limiting Speed – Oil-air (r/min) | 130000 r/min |
| Material | |
| Weight (kg) | 0.005 kg |
71800 ACD/HCP4 19 mm 10 mm 5 mm Frequently Asked Questions about 71800 ACD/HCP4 Super-precision Angular Contact Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
In its sealed configuration (Open Type), CHG Bearing pre-charges 71800 ACD/HCP4 with premium wide-temperature lithium-complex or polyurea grease, calibrated to a 30%–35% cavity volume ratio. For open-type variants, synthetic PAO or refined mineral lubricating oils with appropriate EP (Extreme Pressure) additives should be circulated.
Each 71800 ACD/HCP4 produced in CHG Bearing manufacturing facilities features accurately profiled corner chamfers complying with DIN 5412 / ISO standard corner radii. When designing mating shafts and housing shoulders, machining an undercut or fillet radius strictly within the inner ring clearance limit (10 mm bore side) ensures perfect planar contact without edge binding.
Every production batch of CHG Bearing 71800 ACD/HCP4 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.
Engineered according to international ISO boundary plans, CHG Bearing supplies 71800 ACD/HCP4 with a precision bore diameter (d) of 10 mm, an outside diameter (D) of 19 mm, and a nominal ring width (B) of 5 mm. This configuration yields an effective cross-sectional wall thickness of 4.5 mm and an envelope ratio (D/d) of 1.9, delivering compact rigidity for OEM machinery housings.
