Manufactured by CHG Bearing, the QJF1038M is a precision Four-Point Contact Ball Bearings. Key dimensional parameters include a 190 mm bore diameter, a 290 mm outer diameter, and a 46 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.

QJF1038M - Four-Point Contact Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | QJF1038M |
| Brand | CHG® |
| Construction | Single Row |
| Characteristics | |
| Bearing Type | Four-Point Contact Ball Bearing |
| Series | QJF |
| Load Direction | Combined |
| Dimensions | |
| Bore Diameter (d) | 190 mm |
| Width (B) | 46 mm |
| Outer Diameter (D) | 290 mm |
| Chamfer Dimension r (min.) | 2.1 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 353 kN |
| Basic Static Load Rating C0 (kN) | 533 kN |
| Material | |
| Mass (kg) | 12.1 kg |
| Cage Material | Brass |
QJF1038M 290 mm 190 mm 46 mm Frequently Asked Questions about QJF1038M Four-Point Contact Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
To extend the trouble-free lifespan of CHG Bearing QJF1038M, preventive maintenance routines should monitor operating housing temperature (normally maintaining below 70°C) and conduct regular vibration FFT analysis to identify early raceway micro-pitting before unexpected line halts occur.
Sourcing QJF1038M directly from CHG Bearing eliminates intermediate brokerage markups while granting you factory-direct engineering backup, rigorous ISO-certified quality assurance, competitive volume wholesale pricing, and dependable supply chain stability for Four-Point Contact Ball Bearings.
Yes, CHG Bearing works closely with industrial OEMs and brand distributors. We offer turnkey custom engineering for QJF1038M, including laser-etched customer logos, custom internal radial clearances, specialized grease formulations, and bespoke protective packaging.
Each QJF1038M 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 (190 mm bore side) ensures perfect planar contact without edge binding.
