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22 July, 2026
Bearings for Pumps Aircraft pumps circulate fuel, oil, and hydraulic fluids. The bearings operate under high pressures. Types of Pumps Fuel pumps – for fuel transfer Oil pumps – for engine lubrication Hydraulic pumps – for system actuation Requirements Resistance to fuel and oils High pressure toler......
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22 July, 2026
Bearings for Generators Aircraft generators produce electricity to power the on-board network. The bearings operate at high speeds and temperatures. Functions 400 Hz alternating current generation Powering on-board equipment Battery charging Requirements High speeds up to 12,000 rpm Temperature resi......
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22 July, 2026
Bearings for Turbochargers Aircraft engine turbochargers operate under extreme conditions: high temperatures up to +300°C and speeds up to 50,000 rpm. Operating Conditions Extremely high speeds High temperatures Aggressive exhaust gases Oil starvation during startup Bearing Types Plain bearings Ball......
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22 July, 2026
Contamination and Corrosion Aviation bearings are exposed to fuel, oils, hydraulic fluids, salts, and aggressive environments. Sources of Contamination Aviation fuels — JP-8, Jet A-1 Oils — synthetic esters Hydraulic fluids — Skydrol Salts — during marine operations Consequences Corrosion of raceway......
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22 July, 2026
NVH Requirements In aviation, vibration and noise requirements are particularly strict: passenger comfort, equipment reliability, and reduced crew fatigue. NVH Sources Aircraft engines are the primary source of vibration Gearboxes: noise from gear transmissions Hydraulic systems: pressure pulsations......
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admin
22 July, 2026
Safety and Reliability In aviation, safety is the top priority. A bearing failure can lead to a catastrophe. Reliability requirements reach 99.999%. Quality Standards AS9100 — Aerospace Quality Standard NADCAP — Special Process Accreditation FAR Part 25 — Airworthiness Requirements 100% Non-Destruct......
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22 July, 2026
Extremely High Rotational Speeds Aircraft engines and turbines operate at extremely high rotational speeds — up to 30,000 RPM at temperatures up to +300°C. Application Areas Turboprop engines — up to 30,000 RPM Turbojet engines — up to 15,000 RPM Auxiliary power units — up to 40,000 RPM Pumps and co......
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22 July, 2026
High Loads Aircraft chassis, gearboxes, and power units are subjected to extreme loads: aircraft weight, landing impacts, and maneuvers. Critical Components Chassis: loads up to 500 tons during landing Gearboxes: engine power transmission Power units: vibration and impact resistance Flight control: ......
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22 July, 2026
Lightweight and Compact Design In aviation, every gram counts. Bearings must deliver maximum performance with minimal weight. Challenges Strict weight limits Limited space in assemblies Need to reduce fuel consumption Increased load capacity Solutions Titanium alloy bearings Ceramic balls for weight......
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