Manufactured by CHG Bearing, the NN 3032 K/SPC2W33 is a precision Super-Precision Cylindrical Roller Bearings. Key dimensional parameters include a 160 mm bore diameter, a 240 mm outer diameter, and a 60 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 3032 K/SPC2W33 - Super-Precision Cylindrical Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | NN 3032 K/SPC2W33 |
| 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) | 160 mm |
| Width (B) | 60 mm |
| Outer Diameter (D) | 240 mm |
| Minimum Chamfer Dimension rmin | 2 mm |
| Inner Ring Chamfer | 2.1 mm |
| Outer Ring Chamfer | 1.1 mm |
| End-face Height Difference h | 2.5 mm |
| Inner-Ring Land Diameter (L1 / d1) | 190 mm |
| Outer Ring Raceway Diameter E | 219 mm |
| Shaft Shoulder Diameter dₐ, min. | 171 mm |
| Housing Shoulder Diameter Dₐ, min. | 221 mm |
| Housing Shoulder Diameter Dₐ, max. | 229 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 369 kN |
| Basic Static Load Rating C₀ (kN) | 655 kN |
| Limiting Speed – Grease (r/min) | 3600 r/min |
| Limiting Speed – Oil-air (r/min) | 4000 r/min |
| Reference Grease Quantity Gref (cm³) | 78 cm³ |
| Fatigue Load Limit Pᵤ (kN) | 69.5 kN |
| Axial Static Stiffness – Guideline Value (N/µm) | 3540 N/µm |
| Material | |
| Lubrication Groove Width | 8.5 mm |
| Lubrication Holes (qty × Ø mm) | 4.5 |
| Weight (kg) | 9.48 kg |
| Radial Internal Clearance | C2 mm |
| Internal Design & Weight | |
| Cage Type | Machined Metal Cage |
| Mounting Dimensions | |
| Lubrication Port Thread / Size Φ1 | 214.4 |
NN 3032 K/SPC2W33 240 mm 160 mm 60 mm Frequently Asked Questions about NN 3032 K/SPC2W33 Super-Precision Cylindrical Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Built for demanding industrial environments, the NN 3032 K/SPC2W33 Super-Precision Cylindrical Roller Bearings by CHG Bearing boasts a dynamic load rating (Cr) of standard dynamic and a static load threshold (C0r) of standard static. The optimized internal raceway geometry balances stress distribution, mitigating edge loading even when operating under peak mechanical stresses.
The CHG Bearing NN 3032 K/SPC2W33 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 3032 K/SPC2W33 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 (160 mm bore side) ensures perfect planar contact without edge binding.
To safeguard CHG Bearing NN 3032 K/SPC2W33 against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (160 mm x 240 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
