Manufactured by CHG Bearing, the NN 3014 TN/SP is a precision Super-Precision Cylindrical Roller Bearings. Key dimensional parameters include a 70 mm bore diameter, a 110 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 3014 TN/SP - Super-Precision Cylindrical Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | NN 3014 TN/SP |
| 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 | None |
| Number of Flanges – Outer Ring | 0 |
| Number of Ribs – Inner Ring | 3 |
| Dimensions | |
| Bore Diameter (d) | 70 mm |
| Width (B) | 30 mm |
| Outer Diameter (D) | 110 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) | 85.6 mm |
| Outer Ring Raceway Diameter E | 100 mm |
| Shaft Shoulder Diameter dₐ, min. | 76.5 mm |
| Housing Shoulder Diameter Dₐ, min. | 101 mm |
| Housing Shoulder Diameter Dₐ, max. | 103.5 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 96.8 kN |
| Basic Static Load Rating C₀ (kN) | 150 kN |
| Limiting Speed – Grease (r/min) | 8000 r/min |
| Limiting Speed – Oil-air (r/min) | 9000 r/min |
| Reference Grease Quantity Gref (cm³) | 5.9 cm³ |
| Fatigue Load Limit Pᵤ (kN) | 17.3 kN |
| Axial Static Stiffness – Guideline Value (N/µm) | 1610 N/µm |
| Material | |
| Weight (kg) | 1.05 kg |
| Radial Internal Clearance | C1 mm |
| Internal Design & Weight | |
| Cage Type | Non-metallic Cage |
| Mounting Dimensions | |
| Lubrication Port Thread / Size Φ1 | 98.4 |
NN 3014 TN/SP 110 mm 70 mm 30 mm Frequently Asked Questions about NN 3014 TN/SP Super-Precision Cylindrical Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
To safeguard CHG Bearing NN 3014 TN/SP against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (70 mm x 110 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
In its sealed configuration (Open Type), CHG Bearing pre-charges NN 3014 TN/SP 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 NN 3014 TN/SP 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.
As standard production, CHG Bearing subjects NN 3014 TN/SP 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.
