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    Kayayyaki

    Bearings na naɗa allura tare da zoben ciki ko ba tare da shi ba cikakkun na'urori ne waɗanda suka ƙunshi kofin waje da aka zana, da zoben waje tare da saman waje mai zagaye, naɗa allura da haɗuwar keji da zoben ciki mai cirewa. Bearings na naɗa allura suna da zoben tsere mai lanƙwasa a waje da zoben tallafi mai lanƙwasa. Sakamakon haka, suna iya rama kuskuren da aka samu na axis na ɗaukar nauyi har zuwa digiri 3.
    Daidaita bearings na allura: PNA, RPNA
    Naɗi Girma (mm) Matsayin nauyi na asali
    Fw D C ±0.5 D1 r min. dan. Cr KN kididdigar Cor KN
    RPNA 15/28 15 28 12 24.5 0.8 6.9 7.9
    RPNA 18/32 18 32 16 27 1.8 12.5 16.2
    RPNA 20/35 20 35 16 30.5 2.8 13 17.5
    RPNA 25/42 25 42 20 36.5 3.8 18.8 30.5
    RPNA 28/44 28 44 20 38.5 4.8 22 34
    RPNA 30/47 30 47 20 42 5.8 22.6 36
    RPNA 35/52 35 52 20 47.5 6.8 24.3 41.5
    RPNA 40/55 40 55 20 50.5 7.8 26 47
    RPNA 45/62 45 62 20 58 8.8 27.5 53
    Naɗi Girma (mm) Matsayin nauyi na asali
    d F D C ±0.5 B D1 r min. minti r1. s min. dan. Cr KN kididdigar Cor KN
    PNA 12/28 12 15 28 12 12 24.5 0.8 0.3 0.5 6.9 7.9
    PNA 15/32 15 18 32 16 16 27 0.8 0.3 0.5 12.5 16.2
    PNA 17/35 17 20 35 16 16 30.5 0.8 0.3 0.5 13 17.5
    PNA 20/42 20 25 42 20 20 36.5 0.8 0.3 0.5 18.8 30.5
    PNA 22/44 22 28 44 20 20 38.5 0.8 0.3 0.5 22 34
    PNA 25/47 25 30 47 20 20 42 0.8 0.3 0.5 22.6 36
    PNA 30/52 30 35 52 20 20 47.5 0.8 0.3 0.5 24.3 41.5
    PNA 35/55 35 40 55 20 20 50.5 0.8 0.3 0.5 26 47
    PNA 40/62 40 45 62 20 20 58 0.8 0.3 0.5 27.5 53
    Danna Shigar don bincike ko ESC don rufewa