Manufactured by CHG Bearing, the QJ18/560M is a precision Four-Point Contact Ball Bearings. Key dimensional parameters include a 560 mm bore diameter, a 680 mm outer diameter, and a 56 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.
QJ18/560M - Four-Point Contact Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | QJ18/560M |
| Brand | CHG® |
| Construction | Single Row |
| Characteristics | |
| Bearing Type | Four-Point Contact Ball Bearing |
| Series | QJ |
| Load Direction | Combined |
| Dimensions | |
| Bore Diameter (d) | 560 mm |
| Width (B) | 56 mm |
| Outer Diameter (D) | 680 mm |
| Chamfer Dimension r (min.) | 3 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 629 kN |
| Basic Static Load Rating C0 (kN) | 1640 kN |
| Material | |
| Mass (kg) | 45.4 kg |
| Cage Material | Brass |
QJ18/560M 680 mm 560 mm 56 mm Frequently Asked Questions about QJ18/560M Four-Point 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 QJ18/560M with a precision bore diameter (d) of 560 mm, an outside diameter (D) of 680 mm, and a nominal ring width (B) of 56 mm. This configuration yields an effective cross-sectional wall thickness of 60.0 mm and an envelope ratio (D/d) of 1.21, delivering compact rigidity for OEM machinery housings.
Yes, 100% of QJ18/560M Four-Point 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.
Following standard ISO 281 fatigue calculation guidelines, the nominal rating life (L10) of CHG Bearing QJ18/560M 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.
Beyond standard alloy steel, CHG Bearing can customize the QJ18/560M Four-Point Contact Ball Bearings using AISI 440C stainless steel, black oxide coating, zinc-nickel plating, or hybrid ceramic (Si3N4) balls for applications involving chemical exposure, marine salt fog, or galvanic current hazards.
