Manufactured by CHG Bearing, the NN 3022 KTN3/SPW33 is a precision Super-Precision Cylindrical Roller Bearings. Key dimensional parameters include a 110 mm bore diameter, a 170 mm outer diameter, and a 45 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 3022 KTN3/SPW33 - Super-Precision Cylindrical Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | NN 3022 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) | 110 mm |
| Width (B) | 45 mm |
| Outer Diameter (D) | 170 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) | 132.6 mm |
| Outer Ring Raceway Diameter E | 155 mm |
| Shaft Shoulder Diameter dₐ, min. | 120 mm |
| Housing Shoulder Diameter Dₐ, min. | 157 mm |
| Housing Shoulder Diameter Dₐ, max. | 160 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 220 kN |
| Basic Static Load Rating C₀ (kN) | 360 kN |
| Limiting Speed – Grease (r/min) | 6300 r/min |
| Limiting Speed – Oil-air (r/min) | 7200 r/min |
| Recommended Grease Quantity Grec (cm³) | 11 cm³ |
| Fatigue Load Limit Pᵤ (kN) | 41.5 kN |
| Axial Static Stiffness – Guideline Value (N/µm) | 2470 N/µm |
| Material | |
| Lubrication Groove Width | 5.5 mm |
| Lubrication Holes (qty × Ø mm) | 3 |
| Weight (kg) | 3.43 kg |
| Radial Internal Clearance | C1 mm |
| Internal Design & Weight | |
| Cage Type | Non-metallic Cage |
| Mounting Dimensions | |
| Lubrication Port Thread / Size Φ1 | 152.9 |
NN 3022 KTN3/SPW33 170 mm 110 mm 45 mm Frequently Asked Questions about NN 3022 KTN3/SPW33 Super-Precision Cylindrical Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
To safeguard CHG Bearing NN 3022 KTN3/SPW33 against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (110 mm x 170 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
Absolutely. The CHG Bearing NN 3022 KTN3/SPW33 Super-Precision Cylindrical Roller Bearings is a 1:1 direct interchange for renowned brands, matching part numbers: SKF NN 3022 KTN3/SPW33, FAG NN 3022 KTN3/SPW33, NSK NN 3022 KTN3/SPW33. It shares identical envelope boundary dimensions, load capacities, and shaft fits, allowing instant drop-in replacement without retrofitting your machinery.
Beyond standard alloy steel, CHG Bearing can customize the NN 3022 KTN3/SPW33 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.
In its sealed configuration (Open Type), CHG Bearing pre-charges NN 3022 KTN3/SPW33 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.
