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N 309 · 45 × 100 × 25

Cylindrical roller · N 309

radial — high
    Drawing of N 309: ⌀45 × ⌀100 × 25 mm⌀100⌀4525N 309
    Fig. 1: N 309, end view and section; internal parts simplified per ISO 8826-1. Dimensions in mm

    There is no photo of this product: the 3D model and drawing show the dimensions of N 309

    Load: radial high; no axial loadCylindrical roller N

    Bearing CT N 309

    Price on request
    Available to order
    Request a quoteIn the cart: send the request

    Specifications

    Manufacturer number
    Equivalents
    3 exact, 38 approximate
    d
    45 mm
    Bore diameter dBearing bore = shaft diameter. Source: supplier data
    D
    100 mm
    Outside diameter DOutside diameter = housing bore. Source: supplier data
    B
    25 mm
    Width BRing width. Source: supplier data
    Seal
    open, no protection
    Clearance
    normal clearance
    C
    112 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
    100 kN
    Basic static load rating C0Permissible load without rotation and under shock; ISO 76 method, manufacturer’s figure. Source: supplier data
    m
    0.88 kg
    MassWeight of the product. Source: supplier data
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    Equivalents

    the same size 45 × 100 × 25 from other brands

    43 products
    Series illustration (not a photo of this item): N 309
    You are viewingCT N 309

    Size and design match across the brand catalogues. The codes in the number are read against the CT catalogue.

    • Series illustration (not a photo of this item): N 309N 309This bearingCT45 × 100 × 25available to orderon requestyou are here
    • Series illustration (not a photo of this item): N 309 EN 309 EKG45 × 100 × 25available to orderon request
    • Series illustration (not a photo of this item): N309N309NTE45 × 100 × 25available to orderon request
    02

    Often bought with this

    seal 45×100, shaft snap ring Ø45, bore snap ring Ø100

    3 products
    • Seal 45×100JULU 045-100-10 TCWhy it fits: Oil seal 45×100: shaft 45 and housing bore 100, the same as the bearing
      €0.93available to order
    • Shaft snap ring Ø45CT SEG 45 Z by 1000Why it fits: DIN 471 snap ring for a 45 shaft: holds the inner ring on the shaft
      €77.63available to order
    • Bore snap ring Ø100CT SEG 100 W by 100Why it fits: DIN 472 snap ring for a 100 bore: holds the outer ring in the housing
      €28.8214 pcs
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    Details

    what this bearing is, questions

    About the bearing

    d×D×Bsize 45 × 100 × 25mm
    Cdynamic 112kN
    C0static 100kN
    mweight 0.88kg

    Cylindrical roller N bearing N 309.

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

    Frequently asked questions

    Will 309 C3 fit instead?

    Same size, clearance greater than normal. C3 is used where the bearing runs hot or sits on the shaft with an interference fit. If the old bearing is not marked C3, take this one.

    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.

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