Manufactured by CHG Bearing, the 18HG4494 is a precision Backing Bearings. Key dimensional parameters include a 90 mm bore diameter, a 220.02 mm outer diameter, and a 96 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.

18HG4494 - Backing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 18HG4494 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Backing Bearing |
| Structure (Drawing Reference) | 2 |
| Dimensions | |
| Bore Diameter (d) | 90 mm |
| Width (B) | 96 mm |
| Outer Diameter (D) | 220.02 mm |
| Outer Ring Width C | 94 mm |
| Cross-Section Height H | 65 mm |
| Performance | |
| Basic Dynamic Load Rating Cr (kN) | 550 kN |
| Basic Static Load Rating C0r (kN) | 780 kN |
| Material | |
| Mass (kg) | 22.2 kg |
18HG4494 220.02 mm 90 mm 96 mm Frequently Asked Questions about 18HG4494 Backing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Yes, CHG Bearing works closely with industrial OEMs and brand distributors. We offer turnkey custom engineering for 18HG4494, including laser-etched customer logos, custom internal radial clearances, specialized grease formulations, and bespoke protective packaging.
Following standard ISO 281 fatigue calculation guidelines, the nominal rating life (L10) of CHG Bearing 18HG4494 correlates its dynamic capacity (standard dynamic) with equivalent dynamic loads. In controlled industrial settings with proper contamination-free filtration, field data confirms continuous operational longevity exceeding 20,000 to 50,000 service hours.
As standard production, CHG Bearing subjects 18HG4494 to precision bainite or martensite quenching, offering dimensional stability up to 120°C (248°F). For high-heat processing equipment, CHG Bearing also supplies custom S0 (150°C), S1 (200°C), or S2 (250°C) stabilization heat treatments upon request to prevent residual austenite transformation.
Every production batch of CHG Bearing 18HG4494 Backing Bearings comes with complete traceability. Upon shipment, CHG Bearing can provide EN 10204 3.1 Material Test Reports (MTR), Certificates of Conformity (CoC), spectral chemical composition analysis, and dimensional inspection sheets.
