Manufactured by CHG Bearing, the 71940 ACD/HCP4AQBCB is a precision Super-precision Angular Contact Ball Bearings. Key dimensional parameters include a 200 mm bore diameter, a 280 mm outer diameter, and a 152 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.
71940 ACD/HCP4AQBCB - Super-precision Angular Contact Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 71940 ACD/HCP4AQBCB |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Super-precision Angular Contact Ball Bearing |
| Number of Rows | 4 |
| Contact Type | Normal Contact (Two-point Contact) |
| Ring Type | Integral Inner and Outer Rings |
| Design | High-capacity D Design |
| Universally Matchable | No |
| Number of Bearings in Set | 4 |
| Axial Clearance / Preload | Light Preload |
| Tolerance Class | P4A |
| Bearing Material | Hybrid (Steel Rings / Ceramic Balls) |
| Sealing | Open |
| Dimensions | |
| Bore Diameter (d) | 200 mm |
| Width (B) | 152 mm |
| Outer Diameter (D) | 280 mm |
| Contact Angle α (°) | 25 ° |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 520 kN |
| Basic Static Load Rating C₀ (kN) | 1000 kN |
| Material | |
| Weight (kg) | 20.1 kg |
71940 ACD/HCP4AQBCB 280 mm 200 mm 152 mm Frequently Asked Questions about 71940 ACD/HCP4AQBCB Super-precision Angular Contact Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Yes, 100% of 71940 ACD/HCP4AQBCB Super-precision Angular Contact Ball Bearings leaving CHG Bearing production lines are subjected to multi-frequency Anderometer sound testing. All units satisfy baseline Z1V1 levels, with dedicated quiet-running electric motor quality (EMQ) lots certified to Z2V2 and Z3V3 standards for silent machinery integration.
To safeguard CHG Bearing 71940 ACD/HCP4AQBCB against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (200 mm x 280 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
In its sealed configuration (Open Type), CHG Bearing pre-charges 71940 ACD/HCP4AQBCB 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.
Absolutely. The CHG Bearing 71940 ACD/HCP4AQBCB Super-precision Angular Contact Ball Bearings is a 1:1 direct interchange for renowned brands, matching part numbers: SKF 71940 ACD/HCP4AQBCB, FAG 71940 ACD/HCP4AQBCB, NSK 71940 ACD/HCP4AQBCB. It shares identical envelope boundary dimensions, load capacities, and shaft fits, allowing instant drop-in replacement without retrofitting your machinery.
