Manufactured by CHG Bearing, the N 1011 KPHA/SP is a precision Super-Precision Cylindrical Roller Bearings. Key dimensional parameters include a 55 mm bore diameter, a 90 mm outer diameter, and a 18 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 1011 KPHA/SP - Super-Precision Cylindrical Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | N 1011 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) | 55 mm |
| Width (B) | 18 mm |
| Outer Diameter (D) | 90 mm |
| Minimum Chamfer Dimension rmin | 1 mm |
| Inner Ring Chamfer | 0.6 mm |
| End-face Height Difference h | 2.5 mm |
| Inner-Ring Land Diameter (L1 / d1) | 68.2 mm |
| Outer Ring Raceway Diameter E | 81 mm |
| Shaft Shoulder Diameter dₐ, min. | 61.5 mm |
| Housing Shoulder Diameter Dₐ, min. | 82 mm |
| Housing Shoulder Diameter Dₐ, max. | 83.5 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 37.4 kN |
| Basic Static Load Rating C₀ (kN) | 44 kN |
| Limiting Speed – Grease (r/min) | 22000 r/min |
| Limiting Speed – Oil-air (r/min) | 28000 r/min |
| Reference Grease Quantity Gref (cm³) | 6.1 cm³ |
| Fatigue Load Limit Pᵤ (kN) | 5.2 kN |
| Axial Static Stiffness – Guideline Value (N/µm) | 540 N/µm |
| Material | |
| Weight (kg) | 0.386 kg |
| Radial Internal Clearance | C1 mm |
| Internal Design & Weight | |
| Cage Type | Non-metallic Cage |
| Mounting Dimensions | |
| Lubrication Port Thread / Size Φ1 | 70.1 |
N 1011 KPHA/SP 90 mm 55 mm 18 mm Frequently Asked Questions about N 1011 KPHA/SP Super-Precision Cylindrical Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Yes, 100% of N 1011 KPHA/SP Super-Precision Cylindrical Roller Bearings leaving CHG Bearing production lines are subjected to multi-frequency Anderometer sound testing. All units satisfy baseline Z1V1 levels, with dedicated quiet-running electric motor quality (EMQ) lots certified to Z2V2 and Z3V3 standards for silent machinery integration.
Absolutely. The CHG Bearing N 1011 KPHA/SP Super-Precision Cylindrical Roller Bearings is a 1:1 direct interchange for renowned brands, matching part numbers: SKF N 1011 KPHA/SP, FAG N 1011 KPHA/SP, NSK N 1011 KPHA/SP. It shares identical envelope boundary dimensions, load capacities, and shaft fits, allowing instant drop-in replacement without retrofitting your machinery.
Yes, CHG Bearing works closely with industrial OEMs and brand distributors. We offer turnkey custom engineering for N 1011 KPHA/SP, including laser-etched customer logos, custom internal radial clearances, specialized grease formulations, and bespoke protective packaging.
Built for demanding industrial environments, the N 1011 KPHA/SP 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.
