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6303 · 17 × 47 × 14

Deep groove ball · 6303

radial — mediumaxial — low, on both sides

    Drawing of 6303: ⌀17 × ⌀47 × 14 mm6303
    Fig. 1: 6303, end view and section; rolling element geometry per the NSK catalogue. Dimensions in mm

    There is no photo of this product: the 3D model and drawing show the dimensions of 6303

    Load: radial medium; axial low, on both sidesDeep groove ball

    Bearing Koyo 6303

    €3.45per piece incl. VAT
    In stock: 80 pcs
    In the cart

    Specifications

    Manufacturer number
    GOST number
    d
    17 mm
    Bore diameter dBearing bore = shaft diameter. Source: supplier data
    D
    47 mm
    Outside diameter DOutside diameter = housing bore. Source: supplier data
    B
    14 mm
    Width BRing width. Source: supplier data
    Seal
    open, no protection
    Clearance
    normal clearance
    C
    17 kN
    Basic dynamic load rating CLoad for one million revolutions at 90 % reliability; the L10 life is calculated from it as (C/P)^p. ISO method, manufacturer’s figure: do not carry it over to another brand. Source: supplier data
    C0
    6.65 kN
    Basic static load rating C0Permissible load without rotation and under shock; ISO 76 method, manufacturer’s figure. Source: supplier data
    m
    0.115 kg
    MassWeight of the product. Source: supplier data
    01

    Equivalents

    the same size 17 × 47 × 14 from other brands

    42 products
    Series illustration (not a photo of this item): 6303
    You are viewingKoyo 6303
    €3.45baseline for the price comparison

    Everything the number specifies matches: series 63, 17 × 47 × 14 mm, open, no protection, normal clearance, ordinary steel, design without special letters. The codes in the number are read against the Koyo catalogue.

    • Series illustration (not a photo of this item): 63036303This bearingKoyo17 × 47 × 1480 pcs€3.45you are here
    • Series illustration (not a photo of this item): 63036303CT17 × 47 × 141,195 pcs€0.82−€2.63
    • Photo: 63036303SKF17 × 47 × 14available to order€3.41−€0.04
    • Series illustration (not a photo of this item): 63036303KG17 × 47 × 14available to orderon request

    Under the price: the difference from the price of this bearing (€3.45).

    02

    Often bought with this

    shaft snap ring Ø17, bore snap ring Ø47

    3 products
    • Shaft snap ring Ø17CT SEG 17 Z by1000Why it fits: DIN 471 snap ring for a 17 shaft: holds the inner ring on the shaft
      €11.51available to order
    • Shaft snap ring Ø17SEG 17 Z by 1000Why it fits: DIN 471 snap ring for a 17 shaft: holds the inner ring on the shaft
      Price to be confirmedavailable to order
    • Bore snap ring Ø47CT SEG 47 W by 1000Why it fits: DIN 472 snap ring for a 47 bore: holds the outer ring in the housing
      €90.2811 pcs
    03

    Details

    what this bearing is, questions

    About the bearing

    D 47d 17B 14
    d×D×Bsize 17 × 47 × 14mm
    Cdynamic 17kN
    C0static 6.65kN
    mweight 0.115kg

    Deep groove ball bearing 6303. Under GOST the same bearing is designated 303.

    C, C₀, m: Koyo data. Another brand publishes its own figures, so compare them against that brand’s catalogue.

    Frequently asked questions

    What is 303?

    It is the same bearing under GOST 3189-89: 303 corresponds to the ISO base 6303. Size 17 × 47 × 14 mm, a full equivalent of 6303.

    Can I fit another brand instead of this bearing?

    Without checking, only an exact equivalent: the size, seal, clearance and design match according to the brand’s catalogue. Positions with the same geometry differ in seal, clearance or design, and each one says so in the equivalents block. Load ratings differ between manufacturers, so for a heavily loaded unit compare C.

    How do I get a price and a lead time?

    Press “Request a quote” and send the part number and quantity. We reply with the price, availability and delivery terms for your country.

    04

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