Ložiska

Letecká ložiska vyžadují ultračisté vysokopevnostní oceli, jako jsou M50, M50NiL a 440C. Mezi klíčové kvalitativní znaky patří úplná sledovatelnost materiálu, řízené tepelné zpracování, nedestruktivní zkoušení a soulad s leteckými normami pro zajištění spolehlivosti.

Letecká ložiska podléhají nejvyšším požadavkům na materiál a kvalitu vzhledem k jejich použití v bezpečnostně kritických systémech, jako jsou letecké motory, převodovky, systémy řízení letu a kosmické mechanismy. Materiály musí poskytovat mimořádnou odolnost proti únavě při valivém kontaktu, rozměrovou stabilitu v širokém rozsahu teplot, vysokou lomovou houževnatost a odolnost proti opotřebení a korozi. Metalurgická čistota a homogenita mikrostruktury jsou nezbytné pro dosažení dlouhé a předvídatelné životnosti při cyklickém a vysokorychlostním zatížení. Vysokovýkonné ložiskové oceli, jako jsou M50 a M50NiL, se široce používají díky své vynikající únavové odolnosti, tepelné stabilitě a řízeným profilům tvrdosti dosaženým přesným tepelným zpracováním. Martenzitické korozivzdorné oceli, jako je AISI 440C, se využívají tam, kde je požadována odolnost proti korozi. Ve specifických aplikacích s vysokými teplotami nebo vysokým zatížením mohou být použity slitiny na bázi niklu. Letecká ložiska jsou vyráběna v rámci přísných systémů řízení kvality, které zajišťují úplnou sledovatelnost materiálu, validované tepelné zpracování a přísnou kontrolu procesů. Kvalitativní požadavky zahrnují nedestruktivní zkoušení, jemnou povrchovou úpravu, kontrolovanou vnitřní čistotu a komplexní dokumentaci splňující požadavky letecké certifikace a zajišťující maximální provozní spolehlivost.

Související produkty

  • BÖHLER N360

    BÖHLER N360 is a premium aircraft quality corrosion resistant, martensitic stainless steel, produced using the P-ESR-process. Compared to conventionally produced Cr and CrMo steels, BÖHLER N360 offers improved corrosion resistance and toughness properties as well as high hardness and compressive strength. It is typically used for anti-friction bearing components e.g. bearings, ball screws and wear resistant components for use in the aircraft industry and for automotive components, requiring resistance to both corrosion and wear with hardness not lower than 58 HRC after hardening and tempering, but usage is not limited to such applications.

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    • Letectví
    • Automobilový průmysl
    • EN X30CrMoN15-1
    • Market grade X30
    • SEL 1.4108
    • UNS S42027
    • AMS 5898
    • ASTM A756
    • DIN DIN SEW 400

    BÖHLER N360 is a premium aircraft quality corrosion resistant, martensitic stainless steel, produced using the P-ESR-process. Compared to conventionally produced Cr and CrMo steels, BÖHLER N360 offers improved corrosion resistance and toughness properties as well as high hardness and compressive strength. It is typically used for anti-friction bearing components e.g. bearings, ball screws and wear resistant components for use in the aircraft industry and for automotive components, requiring resistance to both corrosion and wear with hardness not lower than 58 HRC after hardening and tempering, but usage is not limited to such applications.

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  • BÖHLER N695

    BÖHLER N695 is a Chromium alloyed stainless steel with high hardness, wear resistance and good corrosion resistance in the hardened and tempered condition. this grade is typically used for parts requiring hardness up to 58 HRC and resistance to wear, corrosion, and oxidation, e.g. balls, rollers, needles and rings for corrosion resistant bearings, but usage is not limited to such applications.

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    • Letectví
    • EN Z100CD17
    • Market grade 440C
    • SEL 1.4125
    • UNS S44004
    • AMS 5630

    BÖHLER N695 is a Chromium alloyed stainless steel with high hardness, wear resistance and good corrosion resistance in the hardened and tempered condition. this grade is typically used for parts requiring hardness up to 58 HRC and resistance to wear, corrosion, and oxidation, e.g. balls, rollers, needles and rings for corrosion resistant bearings, but usage is not limited to such applications.

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  • BÖHLER N695SA

    BÖHLER N695SA is a high-grade, vacuum remelted chromium stainless steel of aerospace quality, offering high hardness, wear resistance, and good corrosion resistance in the quenched and tempered condition. Compared to air-melted quality, this steel exhibits improved rolling contact fatigue properties and is typically used for components requiring hardness up to 58 HRC and resistance to wear, corrosion, and oxidation—such as balls, rollers, needles, and rings for corrosion-resistant bearings—although its use is not limited to these applications.

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    • Letectví
    • EN Z100CD17
    • Market grade 440C
    • SEL 1.4125
    • UNS S44004
    • AMS 5618
    • EN ISO 10088

    BÖHLER N695SA is a high-grade, vacuum remelted chromium stainless steel of aerospace quality, offering high hardness, wear resistance, and good corrosion resistance in the quenched and tempered condition. Compared to air-melted quality, this steel exhibits improved rolling contact fatigue properties and is typically used for components requiring hardness up to 58 HRC and resistance to wear, corrosion, and oxidation—such as balls, rollers, needles, and rings for corrosion-resistant bearings—although its use is not limited to these applications.

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  • BÖHLER R100

    BÖHLER R100 ia a a premium aircraft-quality, vacuum-arc-remelted low-alloy steel in the form of bars, forgings and forging stock. The grade is used typically for parts requiring through hardening properties, usually with hardness of approximately 60 HRC in section thicknesses 0.50 inch (12.7 mm) and under. E.g. bearing rings and rolling elements, bearing balls and races.

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    • Letectví
    • EN 102Cr6
    • Market grade 52100
    • SEL 1.2067

    BÖHLER R100 ia a a premium aircraft-quality, vacuum-arc-remelted low-alloy steel in the form of bars, forgings and forging stock. The grade is used typically for parts requiring through hardening properties, usually with hardness of approximately 60 HRC in section thicknesses 0.50 inch (12.7 mm) and under. E.g. bearing rings and rolling elements, bearing balls and races.

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  • BÖHLER R250

    BÖHLER R250 is a a premium aircraft-quality, double vacuum-melted low-alloy steel in the form of bars, forgings and forging stock. The grade is used typically for parts such as bearings operating under heavy loads and high speeds at moderate temperatures up to 600° F. E.g. bearings and rolling elements, bearing balls and races.

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    • Letectví
    • EN 80MoCrV42-16
    • Market grade M50
    • SEL 1.3551
    • AMS 6491

    BÖHLER R250 is a a premium aircraft-quality, double vacuum-melted low-alloy steel in the form of bars, forgings and forging stock. The grade is used typically for parts such as bearings operating under heavy loads and high speeds at moderate temperatures up to 600° F. E.g. bearings and rolling elements, bearing balls and races.

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  • BÖHLER V361

    BÖHLER V361 is a 3% Cr-Mo-V nitriding low-alloy steel of premium aircraft-quality, low-alloy steel offering a tensile strength of up to over 1350MPa in the form of bars, forgings, and forging stock. Due to the optimized production route via VIM-melting and VAR-remelting, the steel offers high impact strength and fatigue limit. It may be nitrided in the heat treated condition to obtain a wear resistant surface. It is used typically for nitrided parts such as bearings, operating under heavy loads and high speeds at moderate temperatures, and requiring highest surface hardness, high core toughness, and less distortion than parts made from case hardening steel, but usage is not limited to such applications.

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    • Letectví
    • Automobilový průmysl
    • EN 32CrMoV12-10
    • Market grade E32CDV13
    • SEL 1.7765
    • AMS 6481

    BÖHLER V361 is a 3% Cr-Mo-V nitriding low-alloy steel of premium aircraft-quality, low-alloy steel offering a tensile strength of up to over 1350MPa in the form of bars, forgings, and forging stock. Due to the optimized production route via VIM-melting and VAR-remelting, the steel offers high impact strength and fatigue limit. It may be nitrided in the heat treated condition to obtain a wear resistant surface. It is used typically for nitrided parts such as bearings, operating under heavy loads and high speeds at moderate temperatures, and requiring highest surface hardness, high core toughness, and less distortion than parts made from case hardening steel, but usage is not limited to such applications.

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