Manufactured by CHG Bearing, the NN 3017 KTN9/SP is a precision Super-Precision Cylindrical Roller Bearings. Key dimensional parameters include a 85 mm bore diameter, a 130 mm outer diameter, and a 34 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 3017 KTN9/SP - Super-Precision Cylindrical Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | NN 3017 KTN9/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) | 85 mm |
| Width (B) | 34 mm |
| Outer Diameter (D) | 130 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) | 102 mm |
| Outer Ring Raceway Diameter E | 118 mm |
| Shaft Shoulder Diameter dₐ, min. | 91.5 mm |
| Housing Shoulder Diameter Dₐ, min. | 119 mm |
| Housing Shoulder Diameter Dₐ, max. | 123.5 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 125 kN |
| Basic Static Load Rating C₀ (kN) | 204 kN |
| Limiting Speed – Grease (r/min) | 6700 r/min |
| Limiting Speed – Oil-air (r/min) | 7500 r/min |
| Reference Grease Quantity Gref (cm³) | 8.4 cm³ |
| Fatigue Load Limit Pᵤ (kN) | 23.2 kN |
| Axial Static Stiffness – Guideline Value (N/µm) | 1970 N/µm |
| Material | |
| Weight (kg) | 1.54 kg |
| Radial Internal Clearance | C1 mm |
| Internal Design & Weight | |
| Cage Type | Non-metallic Cage |
| Mounting Dimensions | |
| Lubrication Port Thread / Size Φ1 | 116.4 |
NN 3017 KTN9/SP 130 mm 85 mm 34 mm Frequently Asked Questions about NN 3017 KTN9/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 3017 KTN9/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.
The CHG Bearing NN 3017 KTN9/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.
Each NN 3017 KTN9/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 (85 mm bore side) ensures perfect planar contact without edge binding.
Engineered according to international ISO boundary plans, CHG Bearing supplies NN 3017 KTN9/SP with a precision bore diameter (d) of 85 mm, an outside diameter (D) of 130 mm, and a nominal ring width (B) of 34 mm. This configuration yields an effective cross-sectional wall thickness of 22.5 mm and an envelope ratio (D/d) of 1.53, delivering compact rigidity for OEM machinery housings.
