Manufactured by CHG Bearing, the NNU4152/W33P5 is a precision Double Row Cylindrical Roller Bearings. Key dimensional parameters include a 260 mm bore diameter, a 440 mm outer diameter, and a 180 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.
NNU4152/W33P5 - Double Row Cylindrical Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | NNU4152/W33P5 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Double Row Cylindrical Roller Bearing |
| Number of Rows | Double Row |
| Tolerance Class | P5 |
| Dimensions | |
| Bore Diameter (d) | 260 mm |
| Width (B) | 180 mm |
| Outer Diameter (D) | 440 mm |
| Bore Diameter Tolerance | -0.018 – 0 mm |
| Outside Diameter Tolerance | -0.023 – 0 mm |
| Width Tolerance | -0.35 – 0 mm |
| Enveloping Circle Diameter Fw | 306 mm |
| Inner Ring Chamfer | 4 min mm |
| Outer Ring Chamfer | 4 min mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 2260 kN |
| Basic Static Load Rating C0 (kN) | 4020 kN |
| Material | |
| Mass (kg) | 113 kg |
| Ring Material | Bearing Steel |
| Rolling Element Material | Bearing Steel |
| Cage Material | Brass |
| Lubrication Groove Width | 14 mm |
| Lubrication Holes (qty × Ø mm) | 3 × Ø7 |
NNU4152/W33P5 440 mm 260 mm 306 mm 180 mm Frequently Asked Questions about NNU4152/W33P5 Double Row Cylindrical Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
The Open Type engineered for NNU4152/W33P5 by CHG Bearing utilizes precision non-contact metal shields or reinforced NBR/FKM contact lip seals. This barrier prevents particulate ingress, washdown fluids, and abrasive dust from reaching the raceways while eliminating grease leakage under centrifugal forces.
Standard batches of CHG Bearing NNU4152/W33P5 conform strictly to ISO Class Normal (ABEC-1). For high-precision machine tool spindles, gearboxes, or robotics requiring tighter runouts, CHG Bearing can provide custom batches graded to ISO Class 6 (P6/ABEC-3) or ISO Class 5 (P5/ABEC-5) with 100% micrometer verification.
To ensure optimum performance of CHG Bearing NNU4152/W33P5 Double Row Cylindrical Roller Bearings under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 260 mm bore. For the 440 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
Engineered according to international ISO boundary plans, CHG Bearing supplies NNU4152/W33P5 with a precision bore diameter (d) of 260 mm, an outside diameter (D) of 440 mm, and a nominal ring width (B) of 180 mm. This configuration yields an effective cross-sectional wall thickness of 90.0 mm and an envelope ratio (D/d) of 1.69, delivering compact rigidity for OEM machinery housings.
