Manufactured by CHG Bearing, the 17*31.09 is a precision Tapered 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.
17*31.09 - Tapered Rollers
Technical Specifications
| Overview | |
|---|---|
| Part Number | 17*31.09 |
| Brand | CHG® |
| Product Type | Tapered Roller |
| Taper Angle | 1°10' |
| Dimensions | |
| Roller Length, Lw | 31.09 mm |
| Center Recess Diameter | 8 mm |
| Through-hole Diameter | - mm |
| Center Recess Depth | 0.7 mm |
| Large-end Diameter, Dw | 17 mm |
| Spherical End Radius, SR | 396 mm |
| Through-hole Chamfer | - mm |
| Large-end Diameter Tolerance | -0.01 to +0.012 mm |
| Through-hole Coaxiality | - mm |
| Rolling Surface Roughness, Ra (µm) | 0.16 |
| Axial Chamfer — Large End | 0.5 mm |
| Axial Chamfer Tolerance — Large End | -0.2 to +0.2 mm |
| Radial Chamfer — Large End | 0.5 mm |
| Radial Chamfer Tolerance — Large End | -0.2 to +0.2 mm |
| Axial Chamfer — Small End | 0.5 mm |
| Axial Chamfer Tolerance — Small End | -0.2 to +0.2 mm |
| Radial Chamfer — Small End | 0.5 mm |
| Radial Chamfer Tolerance — Small End | -0.2 to +0.2 mm |
| Performance | |
| Spherical End Surface Roughness, Ra (µm) | 0.32 µm |
| Dimensional & Geometrical Accuracy | |
| Roller Length Tolerance | -0.4 to 0 mm |
| End-face Runout | - mm |
| Diameter Variation Between Ends | ±0.003 mm |
| Roundness | 0.002 mm |
| Ovality | 0.002 mm |
17*31.09 17 mm 31.09 mm 396 mm Frequently Asked Questions about 17*31.09 Tapered Rollers
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
In its sealed configuration (Open Type), CHG Bearing pre-charges 17*31.09 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.
The CHG Bearing 17*31.09 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.
Built for demanding industrial environments, the 17*31.09 Tapered Rollers by CHG Bearing boasts a dynamic load rating (Cr) of standard dynamic and a static load threshold (C0r) of standard static. The optimized internal raceway geometry balances stress distribution, mitigating edge loading even when operating under peak mechanical stresses.
Every production batch of CHG Bearing 17*31.09 Tapered Rollers 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.
