Manufactured by CHG Bearing, the 50*80 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.
50*80 - Spherical Rollers
Technical Specifications
| Overview | |
|---|---|
| Part Number | 50*80 |
| Brand | CHG® |
| Product Type | Spherical Roller |
| Dimensions | |
| Roller Length, Lw | 80 mm |
| Spherical End Radius, SR | 1157 mm |
| Performance | |
| Spherical End Surface Roughness, Ra (µm) | 0.25 µm |
| Maximum Roller Diameter, Dw | 50 mm |
| Outer Profile Radius, R | 274 mm |
| Flat-end Recess Depth | 1 mm |
| Outer Profile Surface Roughness, Ra (µm) | 0.16 µm |
| Material | |
| Small Flat Diameter | - mm |
| Flat-end Recess Diameter | 28 mm |
| Dimensional & Geometrical Accuracy | |
| Roller Diameter Tolerance | -0.025 to +0.05 mm |
| Roller Length Tolerance | -0.12 to 0 mm |
| End-face Runout | - mm |
| Roundness | 0.003 mm |
| Ovality | 0.003 mm |
| Spherical-end Recess Diameter | 24 mm |
| Spherical-end Recess Depth | 1 mm |
| Chamfer Geometry | |
| Axial Chamfer | 1 mm |
| Axial Chamfer Tolerance | 0 to +0.5 mm |
| Radial Chamfer | 1 mm |
| Radial Chamfer Tolerance | 0 to +0.5 mm |
50*80 50 mm 80 mm 1157 mm Frequently Asked Questions about 50*80 Spherical Rollers
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Standard batches of CHG Bearing 50*80 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.
When fitting 50*80 over a mm shaft, CHG Bearing strictly recommends uniform induction heating (controlled between 90°C and 110°C) or precision hydraulic press sleeves. Under no circumstances should direct impact blows be struck against the rings or cage, as shock loads cause brinelling indents and premature spalling.
For international ocean and air freight, CHG Bearing packs 50*80 with industrial VCI anti-corrosion barrier wrapping, sealed polybags, individual cartons, and fumigated ocean-worthy wooden crates. This multi-layer barrier guarantees rust-free storage for a minimum shelf life of 24 to 36 months.
In its sealed configuration (Open Type), CHG Bearing pre-charges 50*80 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.
