Manufactured by CHG Bearing, the NN 3006 KTN/SPW33 is a precision Super-Precision Cylindrical Roller Bearings. Key dimensional parameters include a 30 mm bore diameter, a 55 mm outer diameter, and a 19 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.
Technical Specifications
| Overview | |
|---|---|
| Part Number | NN 3006 KTN/SPW33 NN 3006 KTN/SPW33 |
| Brand | CHG® CHG® |
| Characteristics | |
| Bearing Type | Super-precision Cylindrical Roller Bearing Super-precision Cylindrical Roller Bearing |
| Design Type | Tapered Bore 1:12 Tapered Bore 1:12 |
| Structure (Drawing Reference) | Complete Bearing Complete Bearing |
| Number of Rows | 2 2 |
| Ring Type | None None |
| Design | NN Design NN Design |
| Tolerance Class | SP SP |
| Bearing Material | Bearing Steel Bearing Steel |
| Coating | None None |
| Sealing | None None |
| Lubricant | None None |
| Features | Annular Lubrication Groove and Lubrication Holes Annular Lubrication Groove and Lubrication Holes |
| Number of Flanges – Outer Ring | 0 0 |
| Number of Ribs – Inner Ring | 3 3 |
| Dimensions | |
| Bore Diameter (d) | 30 mm |
| Width (B) | 19 mm |
| Outer Diameter (D) | 55 mm |
| Minimum Chamfer Dimension rmin | 1 mm |
| Inner Ring Chamfer (min.) | 1 mm |
| Outer Ring Chamfer (min.) | 0.6 mm |
| End-face Height Difference h | 1 mm |
| Inner-Ring Land Diameter (L1 / d1) | 40.1 mm |
| Outer Ring Raceway Diameter E | 48.5 mm |
| Shaft Shoulder Diameter dₐ, min. | 35 mm |
| Housing Shoulder Diameter Dₐ, min. | 49 mm |
| Housing Shoulder Diameter Dₐ, max. | 50 mm |
| Lubrication Groove Width | 3.8 mm |
| Performance | |
| Basic Dynamic Load Rating C | 30.8 kN 6.92 klbf |
| Basic Static Load Rating C₀ | 37.5 kN 8.43 klbf |
| Limiting Speed – Grease | 17000 r/min 17000 r/min |
| Limiting Speed – Oil-air | 19000 r/min 19000 r/min |
| Reference Grease Quantity Gref (cm³) | 1 cm³ 1 cm³ |
| Fatigue Load Limit Pᵤ | 4 kN 0.9 klbf |
| Axial Static Stiffness – Guideline Value (N/µm) | 690 N/µm 690 N/µm |
| Material | |
| Lubrication Holes (qty × Ø mm) | 2 2 |
| Weight | 0.179 kg 0.3946 lb |
| Radial Internal Clearance | C1 mm |
| Internal Design & Weight | |
| Cage Type | Non-metallic Cage Non-metallic Cage |
| Mounting Dimensions | |
| Lubrication Port Thread / Size Φ1 | 47.8 47.8 |
NN 3006 KTN/SPW33 55 mm 30 mm 19 mm Frequently Asked Questions about NN 3006 KTN/SPW33 Super-Precision Cylindrical Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Beyond standard alloy steel, CHG Bearing can customize the NN 3006 KTN/SPW33 Super-Precision Cylindrical Roller Bearings using AISI 440C stainless steel, black oxide coating, zinc-nickel plating, or hybrid ceramic (Si3N4) balls for applications involving chemical exposure, marine salt fog, or galvanic current hazards.
As a primary manufacturer, CHG Bearing supports both trial batch evaluations and container-load supply for NN 3006 KTN/SPW33. Standard catalog sizes are stocked for rapid 3–7 day dispatch, while high-volume OEM production runs typically dispatch within 30–45 days.
Engineered according to international ISO boundary plans, CHG Bearing supplies NN 3006 KTN/SPW33 with a precision bore diameter (d) of 30 mm, an outside diameter (D) of 55 mm, and a nominal ring width (B) of 19 mm. This configuration yields an effective cross-sectional wall thickness of 12.5 mm and an envelope ratio (D/d) of 1.83, delivering compact rigidity for OEM machinery housings.
Following standard ISO 281 fatigue calculation guidelines, the nominal rating life (L10) of CHG Bearing NN 3006 KTN/SPW33 correlates its dynamic capacity (standard dynamic) with equivalent dynamic loads. In controlled industrial settings with proper contamination-free filtration, field data confirms continuous operational longevity exceeding 20,000 to 50,000 service hours.
