Manufactured by CHG Bearing, the 20HG45120X is a precision Backing Bearings. Key dimensional parameters include a 100 mm bore diameter, a 225 mm outer diameter, and a 120 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.

20HG45120X - Backing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 20HG45120X |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Backing Bearing |
| Structure (Drawing Reference) | 2 |
| Dimensions | |
| Bore Diameter (d) | 100 mm |
| Width (B) | 120 mm |
| Outer Diameter (D) | 225 mm |
| Outer Ring Width C | 119 mm |
| Cross-Section Height H | 62.5 mm |
| Performance | |
| Basic Dynamic Load Rating Cr (kN) | 770 kN |
| Basic Static Load Rating C0r (kN) | 1310 kN |
| Material | |
| Mass (kg) | 26 kg |
20HG45120X 225 mm 100 mm 120 mm Frequently Asked Questions about 20HG45120X Backing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Sourcing 20HG45120X directly from CHG Bearing eliminates intermediate brokerage markups while granting you factory-direct engineering backup, rigorous ISO-certified quality assurance, competitive volume wholesale pricing, and dependable supply chain stability for Backing Bearings.
To match diverse operational dynamics, CHG Bearing supplies 20HG45120X with multiple cage configurations: high-strength pressed steel ribbon cages for standard duty, solid machined brass cages (M/CA) for heavy vibration and shock loads, or lightweight glass-fiber reinforced polyamide cages (TN9/TVP) for high acceleration and ultra-low noise.
Standard batches of CHG Bearing 20HG45120X conform strictly to ISO Class Normal (ABEC-1). For high-precision machine tool spindles, gearboxes, or robotics requiring tighter runouts, CHG Bearing can provide custom batches graded to ISO Class 6 (P6/ABEC-3) or ISO Class 5 (P5/ABEC-5) with 100% micrometer verification.
Absolutely. The CHG Bearing 20HG45120X Backing Bearings is a 1:1 direct interchange for renowned brands, matching part numbers: SKF 20HG45120X, FAG 20HG45120X, NSK 20HG45120X. It shares identical envelope boundary dimensions, load capacities, and shaft fits, allowing instant drop-in replacement without retrofitting your machinery.
