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FANUC Alpha Series A290-7020-X432

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A290-7020-X432

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The A290-7020-X432 is a bushing assembly from FANUC’s Alpha Series, constructed from SAE 660 bronze (C93200). This component is notable for its precise tolerances and robust material properties, making it suitable for various applications.

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Technical specifications for A290-7020-X432

ManufacturerFANUC
Product TypeBushing assembly
Product LineAlpha Series
Part NumberA290-7020-X432
MaterialSAE 660 bronze (C93200)
ID Tolerance±0.001 in
OD Tolerance0.002 to 0.003 inches
Wall Thickness~0.20 in ±0.005 in
Hardness65 HB (Brinell)
Temperature Range–40 °C to +220 °C
LubricationOil-impregnated
Friction Coefficient0.05–0.20 µ
Max Sliding Speed3.8 m/s (750 ft/min)
Corrosion ResistanceBronze self-protecting
Fit TypePress-fit
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The FANUC A290-7020-X432 belongs to the Alpha Series as a comprehensive bushing assembly. Crafted from SAE 660 bronze (C93200), this part is designed for durability and reliability. It exhibits an inner diameter tolerance of ±0.001 inches, ensuring precision in fit. The outer diameter falls within a tolerance range of 0.002 to 0.003 inches.

With a wall thickness of roughly 0.20 inches, plus or minus 0.005 inches, it is engineered for strength and robustness. The bushing can operate within a temperature spectrum from -40 °C to +220 °C, providing versatility for various environments. The assembly employs oil-impregnated lubrication, which helps in reducing wear and friction during operation.

The coefficient of friction for this bushing assembly is between 0.05 and 0.20 µ, allowing for smooth movement and reduced resistance. It is rated for a maximum sliding speed of 3.8 m/s (750 ft/min), making it suitable for dynamic applications. This component weighs approximately 115 grams (0.25 lbs) per set and is constructed to be self-protecting against corrosion due to the properties of bronze. Finally, it is designed as a press-fit, ensuring a secure installation.