Manufactured by CHG Bearing, the 80*108.388 is a precision Spherical Rollers. Key dimensional parameters include a mm bore diameter, a mm outer diameter, and a 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.
80*108.388 - Spherical Rollers
Technical Specifications
| Overview | |
|---|---|
| Part Number | 80*108.388 |
| Brand | CHG® |
| Product Type | Spherical Roller |
| Dimensions | |
| Roller Length, Lw | 108.388 mm |
| Spherical End Radius, SR | 1165 mm |
| Performance | |
| Spherical End Surface Roughness, Ra (µm) | 0.25 µm |
| Maximum Roller Diameter, Dw | 80 mm |
| Outer Profile Radius, R | 330.5 mm |
| Flat-end Recess Depth | 1.5 mm |
| Outer Profile Surface Roughness, Ra (µm) | 0.16 µm |
| Material | |
| Small Flat Diameter | - mm |
| Flat-end Recess Diameter | 45 mm |
| Dimensional & Geometrical Accuracy | |
| Roller Diameter Tolerance | -0.025 to +0.05 mm |
| Roller Length Tolerance | -0.15 to 0 mm |
| End-face Runout | - mm |
| Roundness | 0.003 mm |
| Ovality | 0.003 mm |
| Spherical-end Recess Diameter | 38 mm |
| Spherical-end Recess Depth | 1.5 mm |
| Chamfer Geometry | |
| Axial Chamfer | 1.5 mm |
| Axial Chamfer Tolerance | 0 to +0.5 mm |
| Radial Chamfer | 1.5 mm |
| Radial Chamfer Tolerance | 0 to +0.5 mm |
80*108.388 80 mm 108.388 mm 1165 mm Frequently Asked Questions about 80*108.388 Spherical Rollers
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
As a primary manufacturer, CHG Bearing supports both trial batch evaluations and container-load supply for 80*108.388. Standard catalog sizes are stocked for rapid 3–7 day dispatch, while high-volume OEM production runs typically dispatch within 30–45 days.
Standard batches of CHG Bearing 80*108.388 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.
To extend the trouble-free lifespan of CHG Bearing 80*108.388, preventive maintenance routines should monitor operating housing temperature (normally maintaining below 70°C) and conduct regular vibration FFT analysis to identify early raceway micro-pitting before unexpected line halts occur.
In its sealed configuration (Open Type), CHG Bearing pre-charges 80*108.388 with premium wide-temperature lithium-complex or polyurea grease, calibrated to a 30%–35% cavity volume ratio. For open-type variants, synthetic PAO or refined mineral lubricating oils with appropriate EP (Extreme Pressure) additives should be circulated.
