Manufactured by CHG Bearing, the N 1014 KPHA/SP is a precision Super-Precision Cylindrical Roller Bearings. Key dimensional parameters include a 70 mm bore diameter, a 110 mm outer diameter, and a 20 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.
N 1014 KPHA/SP - Super-Precision Cylindrical Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | N 1014 KPHA/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 | 1 |
| Ring Type | None |
| 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 | 2 |
| Dimensions | |
| Bore Diameter (d) | 70 mm |
| Width (B) | 20 mm |
| Outer Diameter (D) | 110 mm |
| Minimum Chamfer Dimension rmin | 1 mm |
| Inner Ring Chamfer | 0.6 mm |
| End-face Height Difference h | 3 mm |
| Inner-Ring Land Diameter (L1 / d1) | 85.6 mm |
| Outer Ring Raceway Diameter E | 100 mm |
| Shaft Shoulder Diameter dₐ, min. | 76.5 mm |
| Housing Shoulder Diameter Dₐ, min. | 101 mm |
| Housing Shoulder Diameter Dₐ, max. | 103.5 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 53.9 kN |
| Basic Static Load Rating C₀ (kN) | 69.5 kN |
| Limiting Speed – Grease (r/min) | 18000 r/min |
| Limiting Speed – Oil-air (r/min) | 22000 r/min |
| Reference Grease Quantity Gref (cm³) | 9.2 cm³ |
| Fatigue Load Limit Pᵤ (kN) | 8 kN |
| Axial Static Stiffness – Guideline Value (N/µm) | 720 N/µm |
| Material | |
| Weight (kg) | 0.614 kg |
| Radial Internal Clearance | C1 mm |
| Internal Design & Weight | |
| Cage Type | Non-metallic Cage |
| Mounting Dimensions | |
| Lubrication Port Thread / Size Φ1 | 87.7 |
N 1014 KPHA/SP 110 mm 70 mm 20 mm Frequently Asked Questions about N 1014 KPHA/SP Super-Precision Cylindrical Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
When fitting N 1014 KPHA/SP over a 70 mm shaft, CHG Bearing strictly recommends uniform induction heating (controlled between 90°C and 110°C) or precision hydraulic press sleeves. Under no circumstances should direct impact blows be struck against the rings or cage, as shock loads cause brinelling indents and premature spalling.
To safeguard CHG Bearing N 1014 KPHA/SP against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (70 mm x 110 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
The CHG Bearing N 1014 KPHA/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.
Model N 1014 KPHA/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 70 mm) and steep thermal gradients between inner and outer rings.
