Manufactured by CHG Bearing, the 38*63 is a precision Cylindrical 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.
38*63 - Cylindrical Rollers
Technical Specifications
| Overview | |
|---|---|
| Part Number | 38*63 |
| Brand | CHG® |
| Product Type | Cylindrical Roller |
| Dimensions | |
| Roller Diameter, Dw | 38 mm |
| Roller Length, Lw | 63 mm |
| Center Recess Diameter | 18 mm |
| Through-hole Diameter | - mm |
| Center Recess Depth | 1.5 mm |
| Dimensional & Geometrical Accuracy | |
| Roller Diameter Tolerance | -0.025-0.005 mm |
| Roller Length Tolerance | -0.06 to 0 mm |
| Through-hole Runout | - mm |
| End-face Runout | 0.005 mm |
| Diameter Variation Between Ends | 0.002 mm |
| Roundness | 0.0015 mm |
| Ovality | 0.0015 mm |
| Surface Finish | |
| Outside Diameter Surface Roughness, Ra (µm) | 0.16 µm |
| End-face Surface Roughness, Ra (µm) | 0.25 µm |
| Chamfer Geometry | |
| Axial Chamfer | 1.2 mm |
| Axial Chamfer Tolerance | -0.2 to +0.2 mm |
| Radial Chamfer | 1.2 mm |
| Radial Chamfer Tolerance | -0.2 to +0.2 mm |
38*63 38 mm 63 mm Frequently Asked Questions about 38*63 Cylindrical Rollers
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Sourcing 38*63 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 Cylindrical Rollers.
Following standard ISO 281 fatigue calculation guidelines, the nominal rating life (L10) of CHG Bearing 38*63 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.
Quality starts with raw material selection: CHG Bearing crafts 38*63 inner and outer rings from high-purity High-Quality Chrome Steel (GCr15/100Cr6). Our raw billets undergo vacuum degassing and secondary ESR (electroslag remelting) processes to drastically eliminate non-metallic sulfide and oxide inclusions, elevating subsurface contact fatigue resistance.
Beyond standard alloy steel, CHG Bearing can customize the 38*63 Cylindrical Rollers using AISI 440C stainless steel, black oxide coating, zinc-nickel plating, or hybrid ceramic (Si3N4) balls for applications involving chemical exposure, marine salt fog, or galvanic current hazards.
