Manufactured by CHG Bearing, the QJF260M is a precision Four-Point Contact Ball Bearings. Key dimensional parameters include a 300 mm bore diameter, a 540 mm outer diameter, and a 85 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.
QJF260M - Four-Point Contact Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | QJF260M |
| Brand | CHG® |
| Construction | Single Row |
| Characteristics | |
| Bearing Type | Four-Point Contact Ball Bearing |
| Series | QJF |
| Load Direction | Combined |
| Dimensions | |
| Bore Diameter (d) | 300 mm |
| Width (B) | 85 mm |
| Outer Diameter (D) | 540 mm |
| Chamfer Dimension r (min.) | 5 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 888 kN |
| Basic Static Load Rating C0 (kN) | 1880 kN |
| Material | |
| Mass (kg) | 90.3 kg |
| Cage Material | Brass |
QJF260M 540 mm 300 mm 85 mm Frequently Asked Questions about QJF260M Four-Point Contact Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
To ensure optimum performance of CHG Bearing QJF260M Four-Point Contact Ball Bearings under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 300 mm bore. For the 540 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
Every production batch of CHG Bearing QJF260M Four-Point 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.
To match diverse operational dynamics, CHG Bearing supplies QJF260M with multiple cage configurations: high-strength pressed steel ribbon cages for standard duty, solid machined brass cages (M/CA) for heavy vibration and shock loads, or lightweight glass-fiber reinforced polyamide cages (TN9/TVP) for high acceleration and ultra-low noise.
Yes, CHG Bearing works closely with industrial OEMs and brand distributors. We offer turnkey custom engineering for QJF260M, including laser-etched customer logos, custom internal radial clearances, specialized grease formulations, and bespoke protective packaging.
