Manufactured by CHG Bearing, the NN 3013 KTN/W33VQ497 is a precision Super-Precision Cylindrical Roller Bearings. Key dimensional parameters include a 65 mm bore diameter, a 100 mm outer diameter, and a 26 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 3013 KTN/W33VQ497 - Super-Precision Cylindrical Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | NN 3013 KTN/W33VQ497 |
| 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) | 65 mm |
| Width (B) | 26 mm |
| Outer Diameter (D) | 100 mm |
| Minimum Chamfer Dimension rmin | 1 mm |
| Inner Ring Chamfer | 1.1 mm |
| Outer Ring Chamfer | 0.6 mm |
| End-face Height Difference h | 1.5 mm |
| Inner-Ring Land Diameter (L1 / d1) | 78.2 mm |
| Outer Ring Raceway Diameter E | 91 mm |
| Shaft Shoulder Diameter dₐ, min. | 71.5 mm |
| Housing Shoulder Diameter Dₐ, min. | 92 mm |
| Housing Shoulder Diameter Dₐ, max. | 93.5 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 76.5 kN |
| Basic Static Load Rating C₀ (kN) | 116 kN |
| Limiting Speed – Grease (r/min) | 9000 r/min |
| Limiting Speed – Oil-air (r/min) | 10000 r/min |
| Reference Grease Quantity Gref (cm³) | 4.1 cm³ |
| Fatigue Load Limit Pᵤ (kN) | 13.7 kN |
| Axial Static Stiffness – Guideline Value (N/µm) | 1450 N/µm |
| Material | |
| Lubrication Groove Width | 3.8 mm |
| Lubrication Holes (qty × Ø mm) | 2 |
| Weight (kg) | 0.663 kg |
| Radial Internal Clearance | NSTD mm |
| Internal Design & Weight | |
| Cage Type | Non-metallic Cage |
| Mounting Dimensions | |
| Lubrication Port Thread / Size Φ1 | 89.6 |
NN 3013 KTN/W33VQ497 100 mm 65 mm 26 mm Frequently Asked Questions about NN 3013 KTN/W33VQ497 Super-Precision Cylindrical Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
As standard production, CHG Bearing subjects NN 3013 KTN/W33VQ497 to precision bainite or martensite quenching, offering dimensional stability up to 120°C (248°F). For high-heat processing equipment, CHG Bearing also supplies custom S0 (150°C), S1 (200°C), or S2 (250°C) stabilization heat treatments upon request to prevent residual austenite transformation.
Every production batch of CHG Bearing NN 3013 KTN/W33VQ497 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.
Built for demanding industrial environments, the NN 3013 KTN/W33VQ497 Super-Precision Cylindrical Roller Bearings by CHG Bearing boasts a dynamic load rating (Cr) of standard dynamic and a static load threshold (C0r) of standard static. The optimized internal raceway geometry balances stress distribution, mitigating edge loading even when operating under peak mechanical stresses.
To ensure optimum performance of CHG Bearing NN 3013 KTN/W33VQ497 Super-Precision Cylindrical Roller Bearings under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 65 mm bore. For the 100 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
