Manufactured by CHG Bearing, the NNU4924/W33-2 is a precision Double Row Cylindrical Roller Bearings. Key dimensional parameters include a 120 mm bore diameter, a 165 mm outer diameter, and a 45 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.
NNU4924/W33-2 - Double Row Cylindrical Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | NNU4924/W33-2 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Double Row Cylindrical Roller Bearing |
| Number of Rows | Double Row |
| Tolerance Class | P0 |
| Dimensions | |
| Bore Diameter (d) | 120 mm |
| Width (B) | 45 mm |
| Outer Diameter (D) | 165 mm |
| Bore Diameter Tolerance | -0.020 – 0 mm |
| Outside Diameter Tolerance | -0.025 – 0 mm |
| Width Tolerance | -0.20 – 0 mm |
| Enveloping Circle Diameter Fw | 133.5 mm |
| Inner Ring Chamfer | 1.1 min mm |
| Outer Ring Chamfer | 1.1 min mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 204 kN |
| Basic Static Load Rating C0 (kN) | 416 kN |
| Material | |
| Mass (kg) | 2.9 kg |
| Ring Material | Bearing Steel |
| Rolling Element Material | Bearing Steel |
| Cage Material | Brass |
| Lubrication Groove Width | 6.5 mm |
| Lubrication Holes (qty × Ø mm) | 6 × Ø3 |
NNU4924/W33-2 165 mm 120 mm 133.5 mm 45 mm Frequently Asked Questions about NNU4924/W33-2 Double Row Cylindrical Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Engineered according to international ISO boundary plans, CHG Bearing supplies NNU4924/W33-2 with a precision bore diameter (d) of 120 mm, an outside diameter (D) of 165 mm, and a nominal ring width (B) of 45 mm. This configuration yields an effective cross-sectional wall thickness of 22.5 mm and an envelope ratio (D/d) of 1.38, delivering compact rigidity for OEM machinery housings.
Quality starts with raw material selection: CHG Bearing crafts NNU4924/W33-2 inner and outer rings from high-purity High-Quality Chrome Steel (GCr15/100Cr6). Our raw billets undergo vacuum degassing and secondary ESR (electroslag remelting) processes to drastically eliminate non-metallic sulfide and oxide inclusions, elevating subsurface contact fatigue resistance.
Every production batch of CHG Bearing NNU4924/W33-2 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.
Each NNU4924/W33-2 produced in CHG Bearing manufacturing facilities features accurately profiled corner chamfers complying with DIN 5412 / ISO standard corner radii. When designing mating shafts and housing shoulders, machining an undercut or fillet radius strictly within the inner ring clearance limit (120 mm bore side) ensures perfect planar contact without edge binding.
