Manufactured by CHG Bearing, the 20.495*34.07 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.
20.495*34.07 - Tapered Rollers
Technical Specifications
| Overview | |
|---|---|
| Part Number | 20.495*34.07 |
| Brand | CHG® |
| Product Type | Tapered Roller |
| Taper Angle | 47' |
| Dimensions | |
| Roller Length, Lw | 34.07 mm |
| Center Recess Diameter | 12 mm |
| Through-hole Diameter | - mm |
| Center Recess Depth | 0.8 mm |
| Large-end Diameter, Dw | 20.495 mm |
| Spherical End Radius, SR | 712 mm |
| Through-hole Chamfer | - mm |
| Large-end Diameter Tolerance | -0.01 to +0.016 mm |
| Through-hole Coaxiality | - mm |
| Rolling Surface Roughness, Ra (µm) | 0.16 |
| Axial Chamfer — Large End | 0.8 mm |
| Axial Chamfer Tolerance — Large End | -0.3 to +0.3 mm |
| Radial Chamfer — Large End | 0.8 mm |
| Radial Chamfer Tolerance — Large End | -0.3 to +0.3 mm |
| Axial Chamfer — Small End | 0.8 mm |
| Axial Chamfer Tolerance — Small End | -0.3 to +0.3 mm |
| Radial Chamfer — Small End | 0.8 mm |
| Radial Chamfer Tolerance — Small End | -0.3 to +0.3 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 | ±0.0025 mm |
| Roundness | 0.0015 mm |
| Ovality | 0.0015 mm |
20.495*34.07 20.495 mm 34.07 mm 712 mm Frequently Asked Questions about 20.495*34.07 Tapered Rollers
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
When fitting 20.495*34.07 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.
Quality starts with raw material selection: CHG Bearing crafts 20.495*34.07 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.
As standard production, CHG Bearing subjects 20.495*34.07 to precision bainite or martensite quenching, offering dimensional stability up to 120°C (248°F). For high-heat processing equipment, CHG Bearing also supplies custom S0 (150°C), S1 (200°C), or S2 (250°C) stabilization heat treatments upon request to prevent residual austenite transformation.
Absolutely. The CHG Bearing 20.495*34.07 Tapered Rollers is a 1:1 direct interchange for renowned brands, matching part numbers: SKF 20.495*34.07, FAG 20.495*34.07, NSK 20.495*34.07. It shares identical envelope boundary dimensions, load capacities, and shaft fits, allowing instant drop-in replacement without retrofitting your machinery.
