Manufactured by CHG Bearing, the NNU4992K/W33 is a precision Double Row Cylindrical Roller Bearings. Key dimensional parameters include a 460 mm bore diameter, a 620 mm outer diameter, and a 160 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.
NNU4992K/W33 - Double Row Cylindrical Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | NNU4992K/W33 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Double Row Cylindrical Roller Bearing |
| Number of Rows | Double Row |
| Tolerance Class | P0 |
| Dimensions | |
| Bore Diameter (d) | 460 mm |
| Width (B) | 160 mm |
| Outer Diameter (D) | 620 mm |
| Bore Diameter Tolerance | 0 – +0.045 mm |
| Outside Diameter Tolerance | -0.050 – 0 mm |
| Width Tolerance | -0.45 – 0 mm |
| Enveloping Circle Diameter Fw | 510 mm |
| Inner Ring Chamfer | 4 min mm |
| Outer Ring Chamfer | 4 min mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 2420 kN |
| Basic Static Load Rating C0 (kN) | 5920 kN |
| Material | |
| Mass (kg) | 138 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 |
NNU4992K/W33 620 mm 460 mm 510 mm 160 mm Frequently Asked Questions about NNU4992K/W33 Double Row Cylindrical Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Beyond standard alloy steel, CHG Bearing can customize the NNU4992K/W33 Double Row Cylindrical Roller Bearings using AISI 440C stainless steel, black oxide coating, zinc-nickel plating, or hybrid ceramic (Si3N4) balls for applications involving chemical exposure, marine salt fog, or galvanic current hazards.
Yes, CHG Bearing works closely with industrial OEMs and brand distributors. We offer turnkey custom engineering for NNU4992K/W33, including laser-etched customer logos, custom internal radial clearances, specialized grease formulations, and bespoke protective packaging.
Every production batch of CHG Bearing NNU4992K/W33 Double Row Cylindrical Roller Bearings comes with complete traceability. Upon shipment, CHG Bearing can provide EN 10204 3.1 Material Test Reports (MTR), Certificates of Conformity (CoC), spectral chemical composition analysis, and dimensional inspection sheets.
When fitting NNU4992K/W33 over a 460 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.
