Manufactured by CHG Bearing, the 108*242.27 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.
108*242.27 - Tapered Rollers
Technical Specifications
| Overview | |
|---|---|
| Part Number | 108*242.27 |
| Brand | CHG® |
| Product Type | Tapered Roller |
| Taper Angle | 0°29′30″ |
| Dimensions | |
| Roller Length, Lw | 242.27 mm |
| Center Recess Diameter | - mm |
| Through-hole Diameter | 28 mm |
| Center Recess Depth | - mm |
| Large-end Diameter, Dw | 108 mm |
| Spherical End Radius, SR | 5348 mm |
| Through-hole Chamfer | 18 mm |
| Large-end Diameter Tolerance | -0.02 to +0.02 mm |
| Through-hole Coaxiality | 0.1 mm |
| Rolling Surface Roughness, Ra (µm) | 0.16 |
| Axial Chamfer — Large End | 3 mm |
| Axial Chamfer Tolerance — Large End | -0.5 to +0.5 mm |
| Radial Chamfer — Large End | 3 mm |
| Radial Chamfer Tolerance — Large End | -0.5 to +0.5 mm |
| Axial Chamfer — Small End | 3 mm |
| Axial Chamfer Tolerance — Small End | -0.5 to +0.5 mm |
| Radial Chamfer — Small End | 3 mm |
| Radial Chamfer Tolerance — Small End | -0.5 to +0.5 mm |
| Performance | |
| Spherical End Surface Roughness, Ra (µm) | 0.2 µm |
| Dimensional & Geometrical Accuracy | |
| Roller Length Tolerance | -0.7 to 0 mm |
| End-face Runout | - mm |
| Diameter Variation Between Ends | 0.004 mm |
| Roundness | 0.004 mm |
| Ovality | 0.004 mm |
108*242.27 108 mm 242.27 mm 5348 mm Frequently Asked Questions about 108*242.27 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 108*242.27 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.
Each 108*242.27 produced in CHG Bearing manufacturing facilities features accurately profiled corner chamfers complying with DIN 5412 / ISO standard corner radii. When designing mating shafts and housing shoulders, machining an undercut or fillet radius strictly within the inner ring clearance limit ( mm bore side) ensures perfect planar contact without edge binding.
In its sealed configuration (Open Type), CHG Bearing pre-charges 108*242.27 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 Open Type engineered for 108*242.27 by CHG Bearing utilizes precision non-contact metal shields or reinforced NBR/FKM contact lip seals. This barrier prevents particulate ingress, washdown fluids, and abrasive dust from reaching the raceways while eliminating grease leakage under centrifugal forces.
