Manufactured by CHG Bearing, the 30.65*38.35 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.
30.65*38.35 - Tapered Rollers
Technical Specifications
| Overview | |
|---|---|
| Part Number | 30.65*38.35 |
| Brand | CHG® |
| Product Type | Tapered Roller |
| Taper Angle | 2°38' |
| Dimensions | |
| Roller Length, Lw | 68.35 mm |
| Center Recess Diameter | 14 mm |
| Through-hole Diameter | - mm |
| Center Recess Depth | 1.5 mm |
| Large-end Diameter, Dw | 30.65 mm |
| Spherical End Radius, SR | 316 mm |
| Through-hole Chamfer | - mm |
| Large-end Diameter Tolerance | -0.012 to +0.02 mm |
| Through-hole Coaxiality | - mm |
| Rolling Surface Roughness, Ra (µm) | 0.25 |
| Axial Chamfer — Large End | 1.2 mm |
| Axial Chamfer Tolerance — Large End | -0.4 to +0.4 mm |
| Radial Chamfer — Large End | 1 mm |
| Radial Chamfer Tolerance — Large End | -0.4 to +0.4 mm |
| Axial Chamfer — Small End | 1 mm |
| Axial Chamfer Tolerance — Small End | -0.4 to +0.4 mm |
| Radial Chamfer — Small End | 1.2 mm |
| Radial Chamfer Tolerance — Small End | -0.4 to +0.4 mm |
| Performance | |
| Spherical End Surface Roughness, Ra (µm) | 0.4 µm |
| Dimensional & Geometrical Accuracy | |
| Roller Length Tolerance | -0.4 to 0 mm |
| End-face Runout | - mm |
| Diameter Variation Between Ends | ±0.003 mm |
| Roundness | 0.003 mm |
| Ovality | 0.003 mm |
30.65*38.35 30.65 mm 68.35 mm 316 mm Frequently Asked Questions about 30.65*38.35 Tapered Rollers
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Absolutely. The CHG Bearing 30.65*38.35 Tapered Rollers is a 1:1 direct interchange for renowned brands, matching part numbers: SKF 30.65*38.35, FAG 30.65*38.35, NSK 30.65*38.35. It shares identical envelope boundary dimensions, load capacities, and shaft fits, allowing instant drop-in replacement without retrofitting your machinery.
To extend the trouble-free lifespan of CHG Bearing 30.65*38.35, preventive maintenance routines should monitor operating housing temperature (normally maintaining below 70°C) and conduct regular vibration FFT analysis to identify early raceway micro-pitting before unexpected line halts occur.
Sourcing 30.65*38.35 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 Tapered Rollers.
As a primary manufacturer, CHG Bearing supports both trial batch evaluations and container-load supply for 30.65*38.35. Standard catalog sizes are stocked for rapid 3–7 day dispatch, while high-volume OEM production runs typically dispatch within 30–45 days.
