Manufactured by CHG Bearing, the NN 3026 KTN3/SPW33 is a precision Super-Precision Cylindrical Roller Bearings. Key dimensional parameters include a 130 mm bore diameter, a 200 mm outer diameter, and a 52 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 3026 KTN3/SPW33 - Super-Precision Cylindrical Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | NN 3026 KTN3/SPW33 |
| 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) | 130 mm |
| Width (B) | 52 mm |
| Outer Diameter (D) | 200 mm |
| Minimum Chamfer Dimension rmin | 2 mm |
| Inner Ring Chamfer | 2 mm |
| Outer Ring Chamfer | 1.1 mm |
| End-face Height Difference h | 3 mm |
| Inner-Ring Land Diameter (L1 / d1) | 156.4 mm |
| Outer Ring Raceway Diameter E | 182 mm |
| Shaft Shoulder Diameter dₐ, min. | 140 mm |
| Housing Shoulder Diameter Dₐ, min. | 183 mm |
| Housing Shoulder Diameter Dₐ, max. | 190 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 286 kN |
| Basic Static Load Rating C₀ (kN) | 480 kN |
| Limiting Speed – Grease (r/min) | 5600 r/min |
| Limiting Speed – Oil-air (r/min) | 6400 r/min |
| Recommended Grease Quantity Grec (cm³) | 16.8 cm³ |
| Fatigue Load Limit Pᵤ (kN) | 53 kN |
| Axial Static Stiffness – Guideline Value (N/µm) | 2900 N/µm |
| Material | |
| Lubrication Groove Width | 8.3 mm |
| Lubrication Holes (qty × Ø mm) | 4.5 |
| Weight (kg) | 5.49 kg |
| Radial Internal Clearance | C1 mm |
| Internal Design & Weight | |
| Cage Type | Non-metallic Cage |
| Mounting Dimensions | |
| Lubrication Port Thread / Size Φ1 | 179.6 |
NN 3026 KTN3/SPW33 200 mm 130 mm 52 mm Frequently Asked Questions about NN 3026 KTN3/SPW33 Super-Precision Cylindrical Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Yes, CHG Bearing works closely with industrial OEMs and brand distributors. We offer turnkey custom engineering for NN 3026 KTN3/SPW33, including laser-etched customer logos, custom internal radial clearances, specialized grease formulations, and bespoke protective packaging.
To ensure optimum performance of CHG Bearing NN 3026 KTN3/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 130 mm bore. For the 200 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
Engineered according to international ISO boundary plans, CHG Bearing supplies NN 3026 KTN3/SPW33 with a precision bore diameter (d) of 130 mm, an outside diameter (D) of 200 mm, and a nominal ring width (B) of 52 mm. This configuration yields an effective cross-sectional wall thickness of 35.0 mm and an envelope ratio (D/d) of 1.54, delivering compact rigidity for OEM machinery housings.
Each NN 3026 KTN3/SPW33 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 (130 mm bore side) ensures perfect planar contact without edge binding.
