Manufactured by CHG Bearing, the NN 3015 TN/SPW33 is a precision Super-Precision Cylindrical Roller Bearings. Key dimensional parameters include a 75 mm bore diameter, a 115 mm outer diameter, and a 30 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 3015 TN/SPW33 - Super-Precision Cylindrical Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | NN 3015 TN/SPW33 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Super-precision Cylindrical Roller Bearing |
| Design Type | Cylindrical Bore |
| 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) | 75 mm |
| Width (B) | 30 mm |
| Outer Diameter (D) | 115 mm |
| Minimum Chamfer Dimension rmin | 1 mm |
| Inner Ring Chamfer | 1.1 mm |
| End-face Height Difference h | 2 mm |
| Inner-Ring Land Diameter (L1 / d1) | 90.6 mm |
| Outer Ring Raceway Diameter E | 105 mm |
| Shaft Shoulder Diameter dₐ, min. | 81.5 mm |
| Housing Shoulder Diameter Dₐ, min. | 106 mm |
| Housing Shoulder Diameter Dₐ, max. | 108.5 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 96.8 kN |
| Basic Static Load Rating C₀ (kN) | 150 kN |
| Limiting Speed – Grease (r/min) | 7500 r/min |
| Limiting Speed – Oil-air (r/min) | 8500 r/min |
| Reference Grease Quantity Gref (cm³) | 6.3 cm³ |
| Fatigue Load Limit Pᵤ (kN) | 17.6 kN |
| Axial Static Stiffness – Guideline Value (N/µm) | 1610 N/µm |
| Material | |
| Lubrication Groove Width | 5.5 mm |
| Lubrication Holes (qty × Ø mm) | 3 |
| Weight (kg) | 1.04 kg |
| Radial Internal Clearance | C1 mm |
| Internal Design & Weight | |
| Cage Type | Non-metallic Cage |
| Mounting Dimensions | |
| Lubrication Port Thread / Size Φ1 | 103.4 |
NN 3015 TN/SPW33 115 mm 75 mm 30 mm Frequently Asked Questions about NN 3015 TN/SPW33 Super-Precision Cylindrical Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
As a primary manufacturer, CHG Bearing supports both trial batch evaluations and container-load supply for NN 3015 TN/SPW33. Standard catalog sizes are stocked for rapid 3–7 day dispatch, while high-volume OEM production runs typically dispatch within 30–45 days.
To extend the trouble-free lifespan of CHG Bearing NN 3015 TN/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.
As standard production, CHG Bearing subjects NN 3015 TN/SPW33 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.
To ensure optimum performance of CHG Bearing NN 3015 TN/SPW33 Super-Precision Cylindrical Roller Bearings under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 75 mm bore. For the 115 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
