Manufactured by CHG Bearing, the 27.15*28.16 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.
27.15*28.16 - Tapered Rollers
Technical Specifications
| Overview | |
|---|---|
| Part Number | 27.15*28.16 |
| Brand | CHG® |
| Product Type | Tapered Roller |
| Taper Angle | 1°20' |
| Dimensions | |
| Roller Length, Lw | 28.16 mm |
| Center Recess Diameter | 12 mm |
| Through-hole Diameter | - mm |
| Center Recess Depth | 1 mm |
| Large-end Diameter, Dw | 27.15 mm |
| Spherical End Radius, SR | 554 mm |
| Through-hole Chamfer | - mm |
| Large-end Diameter Tolerance | -0.01 to +0.016 mm |
| Through-hole Coaxiality | - mm |
| Rolling Surface Roughness, Ra (µm) | 0.2 |
| Axial Chamfer — Large End | 1 mm |
| Axial Chamfer Tolerance — Large End | -0.2 to +0.2 mm |
| Radial Chamfer — Large End | 0.8 mm |
| Radial Chamfer Tolerance — Large End | -0.2 to +0.2 mm |
| Axial Chamfer — Small End | 0.8 mm |
| Axial Chamfer Tolerance — Small End | -0.2 to +0.2 mm |
| Radial Chamfer — Small End | 1 mm |
| Radial Chamfer Tolerance — Small End | -0.2 to +0.2 mm |
| Performance | |
| Spherical End Surface Roughness, Ra (µm) | 0.4 µm |
| Dimensional & Geometrical Accuracy | |
| Roller Length Tolerance | -0.3 to 0 mm |
| End-face Runout | - mm |
| Diameter Variation Between Ends | ±0.004 mm |
| Roundness | 0.003 mm |
| Ovality | 0.003 mm |
27.15*28.16 27.15 mm 28.16 mm 554 mm Frequently Asked Questions about 27.15*28.16 Tapered Rollers
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Engineered according to international ISO boundary plans, CHG Bearing supplies 27.15*28.16 with a precision bore diameter (d) of mm, an outside diameter (D) of mm, and a nominal ring width (B) of mm. This configuration yields an effective cross-sectional wall thickness of 0 mm and an envelope ratio (D/d) of 0, delivering compact rigidity for OEM machinery housings.
To safeguard CHG Bearing 27.15*28.16 against fretting wear and false brinelling during transport or vibration, assemble mating surfaces ( mm x mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
Following standard ISO 281 fatigue calculation guidelines, the nominal rating life (L10) of CHG Bearing 27.15*28.16 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 27.15*28.16 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.
