Manufactured by CHG Bearing, the 618/190.5 is a precision Deep Groove Ball Bearings. Key dimensional parameters include a 190.5 mm bore diameter, a 241.3 mm outer diameter, and a 25.5 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.
618/190.5 - Deep Groove Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 618/190.5 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Deep Groove Ball Bearing |
| Seal Type | Open |
| Number of Rows | Single Row |
| Tolerance Class | P5 |
| Load Direction | Radial |
| Dimensions | |
| Bore Diameter (d) | 190.5 mm |
| Width (B) | 25.5 mm |
| Outer Diameter (D) | 241.3 mm |
| Bore Diameter Tolerance | -0.015 – 0 mm |
| Outside Diameter Tolerance | -0.015 – 0 mm |
| Width Tolerance | -0.3 – 0 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 75 kN |
| Basic Static Load Rating C0 (kN) | 91.5 kN |
| Material | |
| Mass (kg) | 2.78 kg |
| Ring Material | Bearing Steel |
| Cage Material | Brass |
| Ball Material | Bearing Steel |
618/190.5 241.3 mm 190.5 mm 25.5 mm Frequently Asked Questions about 618/190.5 Deep Groove Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Following standard ISO 281 fatigue calculation guidelines, the nominal rating life (L10) of CHG Bearing 618/190.5 correlates its dynamic capacity (standard dynamic) with equivalent dynamic loads. In controlled industrial settings with proper contamination-free filtration, field data confirms continuous operational longevity exceeding 20,000 to 50,000 service hours.
Engineered according to international ISO boundary plans, CHG Bearing supplies 618/190.5 with a precision bore diameter (d) of 190.5 mm, an outside diameter (D) of 241.3 mm, and a nominal ring width (B) of 25.5 mm. This configuration yields an effective cross-sectional wall thickness of 25.4 mm and an envelope ratio (D/d) of 1.27, delivering compact rigidity for OEM machinery housings.
Quality starts with raw material selection: CHG Bearing crafts 618/190.5 inner and outer rings from high-purity High-Quality Chrome Steel (GCr15/100Cr6). Our raw billets undergo vacuum degassing and secondary ESR (electroslag remelting) processes to drastically eliminate non-metallic sulfide and oxide inclusions, elevating subsurface contact fatigue resistance.
As standard production, CHG Bearing subjects 618/190.5 to precision bainite or martensite quenching, offering dimensional stability up to 120°C (248°F). For high-heat processing equipment, CHG Bearing also supplies custom S0 (150°C), S1 (200°C), or S2 (250°C) stabilization heat treatments upon request to prevent residual austenite transformation.
