Manufactured by CHG Bearing, the 93806A/93128XD is a precision Double Row Tapered Roller Bearings. Key dimensional parameters include a 204.788 mm bore diameter, a 319.977 mm outer diameter, and a 146.05 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.
93806A/93128XD - Double Row Tapered Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 93806A/93128XD |
| Brand | CHG® |
| Bearing | Double Row Tapered Roller Bearing |
| Characteristics | |
| Series | 370000 |
| Number of Rows | Double Row |
| Tolerance Class | Class 4 |
| Dimensions | |
| Bore Diameter (d) | 204.788 mm |
| Width (B) | 146.05 mm |
| Outer Diameter (D) | 319.977 mm |
| Bore Diameter Tolerance | 0 – +0.025 mm |
| Outside Diameter Tolerance | 0 – +0.025 mm |
| Inner Ring Chamfer | 3.2 mm |
| Outer Ring Chamfer | 1.6 mm |
| Inner Ring Assembly Width Tolerance | -0.508 – +0.711 mm |
| Outer Ring Assembly Width | 123.825 mm |
| Outer Ring Assembly Width Tolerance | -0.508 – +0.711 mm |
| Shaft Abutment Diameter | 201 mm |
| Housing Abutment Diameter | 277.5 mm |
| Lubrication Hole Diameter | 5 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 943 kN |
| Basic Static Load Rating C0 (kN) | 1920 kN |
| Material | |
| Mass (kg) | 32.1 kg |
| Ring Material | Bearing Steel |
| Cage Material | 08Al Steel / Grade 10 Steel |
| Lubrication Groove Width | 10 mm |
| Roller Material | Bearing Steel |
93806A/93128XD 319.977 mm 204.788 mm 146.05 mm Frequently Asked Questions about 93806A/93128XD Double Row Tapered Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
The CHG Bearing 93806A/93128XD 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.
Following standard ISO 281 fatigue calculation guidelines, the nominal rating life (L10) of CHG Bearing 93806A/93128XD 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.
Engineered according to international ISO boundary plans, CHG Bearing supplies 93806A/93128XD with a precision bore diameter (d) of 204.788 mm, an outside diameter (D) of 319.977 mm, and a nominal ring width (B) of 146.05 mm. This configuration yields an effective cross-sectional wall thickness of 57.6 mm and an envelope ratio (D/d) of 1.56, delivering compact rigidity for OEM machinery housings.
Every production batch of CHG Bearing 93806A/93128XD Double Row Tapered Roller 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.
