Manufactured by CHG Bearing, the NN3972/P5 is a precision Double Row Cylindrical Roller Bearings. Key dimensional parameters include a 360 mm bore diameter, a 480 mm outer diameter, and a 90 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.
NN3972/P5 - Double Row Cylindrical Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | NN3972/P5 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Double Row Cylindrical Roller Bearing |
| Number of Rows | Double Row |
| Tolerance Class | P5 |
| Dimensions | |
| Bore Diameter (d) | 360 mm |
| Width (B) | 90 mm |
| Outer Diameter (D) | 480 mm |
| Bore Diameter Tolerance | -0.023 – 0 mm |
| Outside Diameter Tolerance | -0.023 – 0 mm |
| Width Tolerance | -0.45 – 0 mm |
| Enveloping Circle Diameter Fw | 450 mm |
| Inner Ring Chamfer | 3 min mm |
| Outer Ring Chamfer | 3 min mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 933 kN |
| Basic Static Load Rating C0 (kN) | 2080 kN |
| Material | |
| Mass (kg) | 44.7 kg |
| Ring Material | Bearing Steel |
| Rolling Element Material | Bearing Steel |
| Cage Material | Brass |
NN3972/P5 480 mm 360 mm 90 mm 450 mm Frequently Asked Questions about NN3972/P5 Double Row Cylindrical Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
In its sealed configuration (Open Type), CHG Bearing pre-charges NN3972/P5 with premium wide-temperature lithium-complex or polyurea grease, calibrated to a 30%–35% cavity volume ratio. For open-type variants, synthetic PAO or refined mineral lubricating oils with appropriate EP (Extreme Pressure) additives should be circulated.
The Open Type engineered for NN3972/P5 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.
To ensure optimum performance of CHG Bearing NN3972/P5 Double Row Cylindrical Roller Bearings under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 360 mm bore. For the 480 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
Yes, CHG Bearing works closely with industrial OEMs and brand distributors. We offer turnkey custom engineering for NN3972/P5, including laser-etched customer logos, custom internal radial clearances, specialized grease formulations, and bespoke protective packaging.
