Manufactured by CHG Bearing, the NN6/730/W33 is a precision Double Row Cylindrical Roller Bearings. Key dimensional parameters include a 730 mm bore diameter, a 1000 mm outer diameter, and a 340 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.
NN6/730/W33 - Double Row Cylindrical Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | NN6/730/W33 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Double Row Cylindrical Roller Bearing |
| Number of Rows | Double Row |
| Tolerance Class | P0 |
| Dimensions | |
| Bore Diameter (d) | 730 mm |
| Width (B) | 340 mm |
| Outer Diameter (D) | 1000 mm |
| Bore Diameter Tolerance | -0.075 – 0 mm |
| Outside Diameter Tolerance | -0.10 – 0 mm |
| Width Tolerance | -0.75 – 0 mm |
| Enveloping Circle Diameter Fw | 938 mm |
| Inner Ring Chamfer | 6 min mm |
| Outer Ring Chamfer | 6 min mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 9240 kN |
| Basic Static Load Rating C0 (kN) | 23600 kN |
| Material | |
| Mass (kg) | 822 kg |
| Ring Material | Case-Hardened Steel |
| Rolling Element Material | Case-Hardened Steel |
| Cage Material | Grade 45 Steel |
| Lubrication Groove Width | 22 mm |
| Lubrication Holes (qty × Ø mm) | 10 × Ø10 |
NN6/730/W33 1000 mm 730 mm 340 mm 938 mm Frequently Asked Questions about NN6/730/W33 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 NN6/730/W33 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.
For international ocean and air freight, CHG Bearing packs NN6/730/W33 with industrial VCI anti-corrosion barrier wrapping, sealed polybags, individual cartons, and fumigated ocean-worthy wooden crates. This multi-layer barrier guarantees rust-free storage for a minimum shelf life of 24 to 36 months.
Sourcing NN6/730/W33 directly from CHG Bearing eliminates intermediate brokerage markups while granting you factory-direct engineering backup, rigorous ISO-certified quality assurance, competitive volume wholesale pricing, and dependable supply chain stability for Double Row Cylindrical Roller Bearings.
To ensure optimum performance of CHG Bearing NN6/730/W33 Double Row Cylindrical Roller Bearings under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 730 mm bore. For the 1000 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
