Manufactured by CHG Bearing, the NN 3022 TN9/SP 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 TN9/SP - Super-Precision Cylindrical Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | NN 3022 TN9/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) | 110 mm |
| Width (B) | 45 mm |
| Outer Diameter (D) | 170 mm |
| Minimum Chamfer Dimension rmin | 2 mm |
| Inner Ring Chamfer | 2 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) | 5000 r/min |
| Limiting Speed – Oil-air (r/min) | 5600 r/min |
| Reference Grease Quantity Gref (cm³) | 20.2 cm³ |
| Fatigue Load Limit Pᵤ (kN) | 41.5 kN |
| Axial Static Stiffness – Guideline Value (N/µm) | 2470 N/µm |
| Material | |
| Weight (kg) | 3.58 kg |
| Radial Internal Clearance | C1 mm |
| Internal Design & Weight | |
| Cage Type | Non-metallic Cage |
| Mounting Dimensions | |
| Lubrication Port Thread / Size Φ1 | 152.8 |
NN 3022 TN9/SP 170 mm 110 mm 45 mm Frequently Asked Questions about NN 3022 TN9/SP Super-Precision Cylindrical Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
To ensure optimum performance of CHG Bearing NN 3022 TN9/SP Super-Precision Cylindrical Roller Bearings under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 110 mm bore. For the 170 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
Model NN 3022 TN9/SP is manufactured by CHG Bearing in standard Normal clearance (CN) for ambient temperature transmission, and C3 or C4 clearance for heavy duty applications. C3 clearance compensates for radial shrinkage caused by tight shaft press-fits (bore 110 mm) and steep thermal gradients between inner and outer rings.
Each NN 3022 TN9/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 (110 mm bore side) ensures perfect planar contact without edge binding.
The Open Type engineered for NN 3022 TN9/SP by CHG Bearing utilizes precision non-contact metal shields or reinforced NBR/FKM contact lip seals. This barrier prevents particulate ingress, washdown fluids, and abrasive dust from reaching the raceways while eliminating grease leakage under centrifugal forces.
