Manufactured by CHG Bearing, the QJF134M is a precision Four-Point Contact Ball Bearings. Key dimensional parameters include a 170 mm bore diameter, a 280 mm outer diameter, and a 42 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.

QJF134M - Four-Point Contact Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | QJF134M |
| Brand | CHG® |
| Construction | Single Row |
| Characteristics | |
| Bearing Type | Four-Point Contact Ball Bearing |
| Series | QJF |
| Load Direction | Combined |
| Dimensions | |
| Bore Diameter (d) | 170 mm |
| Width (B) | 42 mm |
| Outer Diameter (D) | 280 mm |
| Chamfer Dimension r (min.) | 3 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 345 kN |
| Basic Static Load Rating C0 (kN) | 502 kN |
| Material | |
| Mass (kg) | 11.7 kg |
| Cage Material | Brass |
QJF134M 280 mm 170 mm 42 mm Frequently Asked Questions about QJF134M Four-Point Contact Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Built for demanding industrial environments, the QJF134M Four-Point Contact 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.
Absolutely. The CHG Bearing QJF134M Four-Point Contact Ball Bearings is a 1:1 direct interchange for renowned brands, matching part numbers: SKF QJF134M, FAG QJF134M, NSK QJF134M. It shares identical envelope boundary dimensions, load capacities, and shaft fits, allowing instant drop-in replacement without retrofitting your machinery.
The CHG Bearing QJF134M 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.
As a primary manufacturer, CHG Bearing supports both trial batch evaluations and container-load supply for QJF134M. Standard catalog sizes are stocked for rapid 3–7 day dispatch, while high-volume OEM production runs typically dispatch within 30–45 days.
