Manufactured by CHG Bearing, the NNU4096K/W33 is a precision Double Row Cylindrical Roller Bearings. Key dimensional parameters include a 480 mm bore diameter, a 700 mm outer diameter, and a 218 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.
NNU4096K/W33 - Double Row Cylindrical Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | NNU4096K/W33 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Double Row Cylindrical Roller Bearing |
| Number of Rows | Double Row |
| Tolerance Class | P0 |
| Dimensions | |
| Bore Diameter (d) | 480 mm |
| Width (B) | 218 mm |
| Outer Diameter (D) | 700 mm |
| Bore Diameter Tolerance | 0 – +0.10 mm |
| Outside Diameter Tolerance | -0.075 – 0 mm |
| Width Tolerance | -0.45 – 0 mm |
| Enveloping Circle Diameter Fw | 533 mm |
| Inner Ring Chamfer | 6 min mm |
| Outer Ring Chamfer | 6 min mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 4430 kN |
| Basic Static Load Rating C0 (kN) | 8960 kN |
| Material | |
| Mass (kg) | 273 kg |
| Ring Material | Bearing Steel |
| Rolling Element Material | Bearing Steel |
| Cage Material | Brass |
| Lubrication Groove Width | 15 mm |
| Lubrication Holes (qty × Ø mm) | 3 × Ø8 |
NNU4096K/W33 700 mm 480 mm 533 mm 218 mm Frequently Asked Questions about NNU4096K/W33 Double Row Cylindrical Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Model NNU4096K/W33 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 480 mm) and steep thermal gradients between inner and outer rings.
When fitting NNU4096K/W33 over a 480 mm shaft, CHG Bearing strictly recommends uniform induction heating (controlled between 90°C and 110°C) or precision hydraulic press sleeves. Under no circumstances should direct impact blows be struck against the rings or cage, as shock loads cause brinelling indents and premature spalling.
Built for demanding industrial environments, the NNU4096K/W33 Double Row Cylindrical Roller 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.
Engineered according to international ISO boundary plans, CHG Bearing supplies NNU4096K/W33 with a precision bore diameter (d) of 480 mm, an outside diameter (D) of 700 mm, and a nominal ring width (B) of 218 mm. This configuration yields an effective cross-sectional wall thickness of 110.0 mm and an envelope ratio (D/d) of 1.46, delivering compact rigidity for OEM machinery housings.
