Manufactured by CHG Bearing, the NN 3064 K/SPW33 is a precision Super-Precision Cylindrical Roller Bearings. Key dimensional parameters include a 320 mm bore diameter, a 480 mm outer diameter, and a 121 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.
NN 3064 K/SPW33 - Super-Precision Cylindrical Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | NN 3064 K/SPW33 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Super-precision Cylindrical Roller Bearing |
| Design Type | Tapered Bore 1:12 |
| Structure (Drawing Reference) | Complete Bearing |
| Number of Rows | 2 |
| Ring Type | None |
| Design | NN Design |
| Tolerance Class | SP |
| Bearing Material | Bearing Steel |
| Coating | None |
| Sealing | None |
| Lubricant | None |
| Features | Annular Lubrication Groove and Lubrication Holes |
| Number of Flanges – Outer Ring | 0 |
| Number of Ribs – Inner Ring | 3 |
| Dimensions | |
| Bore Diameter (d) | 320 mm |
| Width (B) | 121 mm |
| Outer Diameter (D) | 480 mm |
| Minimum Chamfer Dimension rmin | 3 mm |
| Inner Ring Chamfer | 4 mm |
| Outer Ring Chamfer | 6 mm |
| End-face Height Difference h | 8.9 mm |
| Inner-Ring Land Diameter (L1 / d1) | 379 mm |
| Outer Ring Raceway Diameter E | 438 mm |
| Shaft Shoulder Diameter dₐ, min. | 335 mm |
| Housing Shoulder Diameter Dₐ, min. | 442 mm |
| Housing Shoulder Diameter Dₐ, max. | 465 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 1320 kN |
| Basic Static Load Rating C₀ (kN) | 2600 kN |
| Limiting Speed – Grease (r/min) | 1600 r/min |
| Limiting Speed – Oil-air (r/min) | 1800 r/min |
| Fatigue Load Limit Pᵤ (kN) | 240 kN |
| Axial Static Stiffness – Guideline Value (N/µm) | 6540 N/µm |
| Material | |
| Lubrication Groove Width | 16.7 mm |
| Lubrication Holes (qty × Ø mm) | 9 |
| Weight (kg) | 74 kg |
| Radial Internal Clearance | CN mm |
| Internal Design & Weight | |
| Cage Type | Machined Metal Cage |
NN 3064 K/SPW33 480 mm 320 mm 121 mm Frequently Asked Questions about NN 3064 K/SPW33 Super-Precision Cylindrical Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Every production batch of CHG Bearing NN 3064 K/SPW33 Super-Precision 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.
For international ocean and air freight, CHG Bearing packs NN 3064 K/SPW33 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.
To extend the trouble-free lifespan of CHG Bearing NN 3064 K/SPW33, preventive maintenance routines should monitor operating housing temperature (normally maintaining below 70°C) and conduct regular vibration FFT analysis to identify early raceway micro-pitting before unexpected line halts occur.
The Open Type engineered for NN 3064 K/SPW33 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.
