Manufactured by CHG Bearing, the NNU30/600F1 is a precision Double Row Cylindrical Roller Bearings. Key dimensional parameters include a 600 mm bore diameter, a 870 mm outer diameter, and a 200 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.
NNU30/600F1 - Double Row Cylindrical Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | NNU30/600F1 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Double Row Cylindrical Roller Bearing |
| Number of Rows | Double Row |
| Tolerance Class | P0 |
| Dimensions | |
| Bore Diameter (d) | 600 mm |
| Width (B) | 200 mm |
| Outer Diameter (D) | 870 mm |
| Bore Diameter Tolerance | -0.050 – 0 mm |
| Outside Diameter Tolerance | -0.10 – 0 mm |
| Width Tolerance | -0.50 – 0 mm |
| Enveloping Circle Diameter Fw | 672 mm |
| Inner Ring Chamfer | 6 min mm |
| Outer Ring Chamfer | 6 min mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 4520 kN |
| Basic Static Load Rating C0 (kN) | 9880 kN |
| Material | |
| Mass (kg) | 387 kg |
| Ring Material | Bearing Steel |
| Rolling Element Material | Bearing Steel |
| Cage Material | Grade 40 Steel |
| Lubrication Groove Width | 18 mm |
| Lubrication Holes (qty × Ø mm) | 8 × Ø10 |
NNU30/600F1 870 mm 600 mm 672 mm 200 mm Frequently Asked Questions about NNU30/600F1 Double Row Cylindrical Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Model NNU30/600F1 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 600 mm) and steep thermal gradients between inner and outer rings.
To ensure optimum performance of CHG Bearing NNU30/600F1 Double Row Cylindrical Roller Bearings under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 600 mm bore. For the 870 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 NNU30/600F1, 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.
The CHG Bearing NNU30/600F1 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.
