Manufactured by CHG Bearing, the NN 3015 KTN/SP 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 KTN/SP - Super-Precision Cylindrical Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | NN 3015 KTN/SP |
| 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 | None |
| 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 |
| Outer Ring Chamfer | 0.6 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 | |
| Weight (kg) | 0.97 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 KTN/SP 115 mm 75 mm 30 mm Frequently Asked Questions about NN 3015 KTN/SP 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 3015 KTN/SP 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.
Each NN 3015 KTN/SP produced in CHG Bearing manufacturing facilities features accurately profiled corner chamfers complying with DIN 5412 / ISO standard corner radii. When designing mating shafts and housing shoulders, machining an undercut or fillet radius strictly within the inner ring clearance limit (75 mm bore side) ensures perfect planar contact without edge binding.
As a primary manufacturer, CHG Bearing supports both trial batch evaluations and container-load supply for NN 3015 KTN/SP. Standard catalog sizes are stocked for rapid 3–7 day dispatch, while high-volume OEM production runs typically dispatch within 30–45 days.
The CHG Bearing NN 3015 KTN/SP is rated for limiting speeds up to standard rated RPM under forced oil-mist or circulating oil lubrication regimes. When lubricated with factory-filled synthetic high-speed grease, safe continuous velocity is maintained at approximately 75% to 85% of the maximum nominal limit, preventing thermal runaway.
