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  • NA4903 Machined Needle Roller 17x30x13 NA-4903

    ID 17mm x OD 30mm x L 13mm
    25 days
    10 PCS

    NA4903 bearing is Precision Machined Needle Roller Bearing with Inner Ring in complete Set.

    Sizes: ID 17mm x OD 30mm x L 13mm

    Match#: NA4903Z, NA4903J, NA-4903

    Boundary Dimensions in mm Basic Dynamic Load Basic Static Load

    Speed Limit


    C C0
    d D C B Fw N N
    17 30 13 - 22 11,700 15,600 18,000

    NA4903 Needle roller bearings with machined rings made of bearing steel have a low sectional height and a high load carrying capacity. The NA4903 bearings can be used with or without an inner ring. Needle roller bearings RNA4903 without an inner ring will require the shaft to be hardened, ground and polished.

    ID 17mm x OD 30mm x L 13mm
    Chrome Steel SAE-52100
    Chevron SRI-2 Grease
    NA4903Z, NA4903J, NA-4903

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