Manufactured by CHG Bearing, the QJ236N2M is a precision Four-Point Contact Ball Bearings. Key dimensional parameters include a 180 mm bore diameter, a 320 mm outer diameter, and a 52 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.
QJ236N2M - Four-Point Contact Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | QJ236N2M |
| Brand | CHG® |
| Construction | Single Row |
| Characteristics | |
| Bearing Type | Four-Point Contact Ball Bearing |
| Series | QJ |
| Load Direction | Combined |
| Dimensions | |
| Bore Diameter (d) | 180 mm |
| Width (B) | 52 mm |
| Outer Diameter (D) | 320 mm |
| Chamfer Dimension r (min.) | 4 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 435 kN |
| Basic Static Load Rating C0 (kN) | 674 kN |
| Material | |
| Mass (kg) | 20.6 kg |
| Cage Material | Brass |
QJ236N2M 320 mm 180 mm 52 mm Frequently Asked Questions about QJ236N2M 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 QJ236N2M Four-Point Contact Ball Bearings under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 180 mm bore. For the 320 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
To extend the trouble-free lifespan of CHG Bearing QJ236N2M, 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.
Absolutely. The CHG Bearing QJ236N2M Four-Point Contact Ball Bearings is a 1:1 direct interchange for renowned brands, matching part numbers: SKF QJ236N2M, FAG QJ236N2M, NSK QJ236N2M. It shares identical envelope boundary dimensions, load capacities, and shaft fits, allowing instant drop-in replacement without retrofitting your machinery.
Model QJ236N2M is manufactured by CHG Bearing in standard Normal clearance (CN) for ambient temperature transmission, and C3 or C4 clearance for heavy duty applications. C3 clearance compensates for radial shrinkage caused by tight shaft press-fits (bore 180 mm) and steep thermal gradients between inner and outer rings.
