Manufactured by CHG Bearing, the 43*78 is a precision Cylindrical 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.
43*78 - Cylindrical Rollers
Technical Specifications
| Overview | |
|---|---|
| Part Number | 43*78 |
| Brand | CHG® |
| Product Type | Cylindrical Roller |
| Dimensions | |
| Roller Diameter, Dw | 43 mm |
| Roller Length, Lw | 78 mm |
| Center Recess Diameter | 22 mm |
| Through-hole Diameter | - mm |
| Center Recess Depth | 1.5 mm |
| Dimensional & Geometrical Accuracy | |
| Roller Diameter Tolerance | -0.025 to +0.005 mm |
| Roller Length Tolerance | -0.06 to 0 mm |
| Through-hole Runout | - mm |
| End-face Runout | 0.006 mm |
| Diameter Variation Between Ends | 0.002 mm |
| Roundness | 0.001 mm |
| Ovality | 0.0015 mm |
| Surface Finish | |
| Outside Diameter Surface Roughness, Ra (µm) | 0.125 µm |
| End-face Surface Roughness, Ra (µm) | 0.2 µm |
| 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 |
43*78 43 mm 78 mm Frequently Asked Questions about 43*78 Cylindrical Rollers
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Absolutely. The CHG Bearing 43*78 Cylindrical Rollers is a 1:1 direct interchange for renowned brands, matching part numbers: SKF 43*78, FAG 43*78, NSK 43*78. It shares identical envelope boundary dimensions, load capacities, and shaft fits, allowing instant drop-in replacement without retrofitting your machinery.
To match diverse operational dynamics, CHG Bearing supplies 43*78 with multiple cage configurations: high-strength pressed steel ribbon cages for standard duty, solid machined brass cages (M/CA) for heavy vibration and shock loads, or lightweight glass-fiber reinforced polyamide cages (TN9/TVP) for high acceleration and ultra-low noise.
Standard batches of CHG Bearing 43*78 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 43*78 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.
