Manufactured by CHG Bearing, the 71944 CD/HCP4ADGB is a precision Super-precision Angular Contact Ball Bearings. Key dimensional parameters include a 220 mm bore diameter, a 300 mm outer diameter, and a 76 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.
71944 CD/HCP4ADGB - Super-precision Angular Contact Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 71944 CD/HCP4ADGB |
| 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 | Yes – Back-to-back (DB), Face-to-face (DF), or Tandem (DT) |
| Matched Arrangement | Universal Matching |
| Number of Bearings in Set | 2 |
| Axial Clearance / Preload | Light Preload |
| Tolerance Class | P4A |
| Bearing Material | Hybrid (Steel Rings / Ceramic Balls) |
| Sealing | Open |
| Dimensions | |
| Bore Diameter (d) | 220 mm |
| Width (B) | 76 mm |
| Outer Diameter (D) | 300 mm |
| Contact Angle α (°) | 15 ° |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 358 kN |
| Basic Static Load Rating C₀ (kN) | 600 kN |
| Material | |
| Weight (kg) | 10.9 kg |
71944 CD/HCP4ADGB 300 mm 220 mm 76 mm Frequently Asked Questions about 71944 CD/HCP4ADGB 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 71944 CD/HCP4ADGB with a precision bore diameter (d) of 220 mm, an outside diameter (D) of 300 mm, and a nominal ring width (B) of 76 mm. This configuration yields an effective cross-sectional wall thickness of 40.0 mm and an envelope ratio (D/d) of 1.36, delivering compact rigidity for OEM machinery housings.
To ensure optimum performance of CHG Bearing 71944 CD/HCP4ADGB Super-precision Angular Contact Ball Bearings under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 220 mm bore. For the 300 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
Each 71944 CD/HCP4ADGB 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 (220 mm bore side) ensures perfect planar contact without edge binding.
Every production batch of CHG Bearing 71944 CD/HCP4ADGB 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.
