Manufactured by CHG Bearing, the 113*170.778 is a precision Spherical 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.
113*170.778 - Spherical Rollers
Technical Specifications
| Overview | |
|---|---|
| Part Number | 113*170.778 |
| Brand | CHG® |
| Product Type | Spherical Roller |
| Dimensions | |
| Roller Length, Lw | 170.778 mm |
| Spherical End Radius, SR | 3420 mm |
| Performance | |
| Spherical End Surface Roughness, Ra (µm) | 0.25 µm |
| Maximum Roller Diameter, Dw | 113 mm |
| Outer Profile Radius, R | 704 mm |
| Flat-end Recess Depth | 2 mm |
| Outer Profile Surface Roughness, Ra (µm) | 0.16 µm |
| Material | |
| Small Flat Diameter | - mm |
| Flat-end Recess Diameter | 60 mm |
| Dimensional & Geometrical Accuracy | |
| Roller Diameter Tolerance | -0.035 to +0.05 mm |
| Roller Length Tolerance | -0.25 to 0 mm |
| End-face Runout | - mm |
| Roundness | 0.004 mm |
| Ovality | 0.004 mm |
| Spherical-end Recess Diameter | 50 mm |
| Spherical-end Recess Depth | 2 mm |
| Chamfer Geometry | |
| Axial Chamfer | 1.5 mm |
| Axial Chamfer Tolerance | 0 to +0.5 mm |
| Radial Chamfer | 1.5 mm |
| Radial Chamfer Tolerance | 0 to +0.5 mm |
113*170.778 113 mm 170.778 mm 3420 mm Frequently Asked Questions about 113*170.778 Spherical Rollers
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Standard batches of CHG Bearing 113*170.778 conform strictly to ISO Class Normal (ABEC-1). For high-precision machine tool spindles, gearboxes, or robotics requiring tighter runouts, CHG Bearing can provide custom batches graded to ISO Class 6 (P6/ABEC-3) or ISO Class 5 (P5/ABEC-5) with 100% micrometer verification.
As standard production, CHG Bearing subjects 113*170.778 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.
To extend the trouble-free lifespan of CHG Bearing 113*170.778, 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.
Every production batch of CHG Bearing 113*170.778 Spherical 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.
