Manufactured by CHG Bearing, the HJU120CP0 is a precision Thin Section Deep Groove Ball Bearings. Key dimensional parameters include a 304.8 mm bore diameter, a 323.85 mm outer diameter, and a 12.7 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.
HJU120CP0 - Thin Section Deep Groove Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | HJU120CP0 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Deep Groove Ball Bearing |
| Series | JU |
| Seal Type | Sealed |
| Load Direction | Radial and Bidirectional Axial |
| Row Configuration | Single Row |
| Dimensions | |
| Bore Diameter (d) | 304.8 mm |
| Width (B) | 12.7 mm |
| Outer Diameter (D) | 323.85 mm |
| Bore Diameter Tolerance | -0.035-0 mm |
| Outside Diameter Tolerance | -0.035-0 mm |
| Width Tolerance | -0.127-0 mm |
| Inner-Ring Land Diameter (L1 / d1) | 308.61 mm |
| Outer-Ring Land Diameter (L2 / D1) | 318.389 mm |
| Counterbore Diameter L3 | N/A mm |
| Performance | |
| Basic Static Radial Load Rating C0r (N) | 26450 N |
| Basic Dynamic Radial Load Rating Cr (N) | 8770 N |
| Basic Static Axial Load Rating C0a (N) | N/A N |
| Basic Dynamic Axial Load Rating Ca (N) | N/A N |
| Material | |
| Mass (kg) | 0.708 kg |
| Ring Material | Stainless Steel / Bearing Steel |
| Cage Material | Brass / PEEK / Polyimide / Phenolic Resin Fabric Laminate |
| Ball Material | Stainless Steel / Bearing Steel / Ceramic |
| Operating Temperature Range (°C) | -50 to +100 °C °C |
| Precision Class | P0 |
| Radial Internal Clearance | -0.121-0.072 mm |
HJU120CP0 323.85 mm 304.8 mm 12.7 mm Frequently Asked Questions about HJU120CP0 Thin Section Deep Groove Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
When fitting HJU120CP0 over a 304.8 mm shaft, CHG Bearing strictly recommends uniform induction heating (controlled between 90°C and 110°C) or precision hydraulic press sleeves. Under no circumstances should direct impact blows be struck against the rings or cage, as shock loads cause brinelling indents and premature spalling.
Built for demanding industrial environments, the HJU120CP0 Thin Section Deep Groove 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.
The CHG Bearing HJU120CP0 is rated for limiting speeds up to standard rated RPM under forced oil-mist or circulating oil lubrication regimes. When lubricated with factory-filled synthetic high-speed grease, safe continuous velocity is maintained at approximately 75% to 85% of the maximum nominal limit, preventing thermal runaway.
In its sealed configuration (Sealed), CHG Bearing pre-charges HJU120CP0 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.
