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NJ 311 · 55 × 120 × 29

Cylindrical roller · NJ 311

radial — highaxial — low, on one side
    Drawing of NJ 311: ⌀55 × ⌀120 × 29 mm⌀120⌀5529NJ 311
    Fig. 1: NJ 311, 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 NJ 311

    Load: radial high; axial low, on one sideCylindrical roller NJ

    Bearing CT NJ 311

    €8.34per piece incl. VAT
    In stock: 31 pcs
    In the cart

    Specifications

    Manufacturer number
    Equivalents
    9 exact, 31 approximate
    d
    55 mm
    Bore diameter dBearing bore = shaft diameter. Source: two supplier sources
    D
    120 mm
    Outside diameter DOutside diameter = housing bore. Source: two supplier sources
    B
    29 mm
    Width BRing width. Source: two supplier sources
    Seal
    open, no protection
    Clearance
    normal clearance
    C
    156 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
    143 kN
    Basic static load rating C0Permissible load without rotation and under shock; ISO 76 method, manufacturer’s figure. Source: supplier data
    01

    Equivalents

    the same size 55 × 120 × 29 from other brands

    42 products
    Series illustration (not a photo of this item): NJ 311
    You are viewingCT NJ 311
    €8.34baseline for the price comparison

    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): NJ 311NJ 311This bearingCT55 × 120 × 2931 pcs€8.34you are here
    • Photo: NJ 311NJ 311FLT55 × 120 × 29available to order€25+€16.66
    • Photo: NJ 311 ENJ 311 EZ&S55 × 120 × 29available to order€25.03+€16.69
    • Photo: NJ 311 ENJ 311 EFAG55 × 120 × 29available to order€74.66+€66.32
    • Series illustration (not a photo of this item): NJ 311NJ 311KG55 × 120 × 29available to orderon request
    • Series illustration (not a photo of this item): NJ 311 EWNJ 311 EWNSK55 × 120 × 29available to orderon request
    • Series illustration (not a photo of this item): NJ 311 ENJ 311 ENTE55 × 120 × 29available to orderon request
    • Series illustration (not a photo of this item): NJ 311 ECPNJ 311 ECPSKF55 × 120 × 29available to orderon request
    • Series illustration (not a photo of this item): NJ 311NJ 311ZKL55 × 120 × 29out of stockon request

    Under the price: the difference from the price of this bearing (€8.34).
    02

    Often bought with this

    shaft snap ring Ø55, bore snap ring Ø120

    2 products
    • Shaft snap ring Ø55CT SEG 55 Z by1000Why it fits: DIN 471 snap ring for a 55 shaft: holds the inner ring on the shaft
      €125.77available to order
    • Bore snap ring Ø120CT SEG 120 W by 100Why it fits: DIN 472 snap ring for a 120 bore: holds the outer ring in the housing
      €65.88available to order
    03

    Details

    what this bearing is, questions

    Where this bearing is fitted

    1 machine1 makeby parts catalogues

    1. Belarus 2022/​2022V (2022.3/​2022V.3) Belarus check the version 1 assembly · 4 pcs per machine

      not decoded: mark “M1” in the machine catalogue; not set by the number: sealing, clearance, precision class

      manufacturer’s catalogue: BELARUS 2022/​2022V. 2022-0000010 KDS. Catalogue of parts and assembly units (RUE MTZ)

    Number in the manufacturer’s catalogue: by ISO. “Same geometry” means size and type match; the version is not given in the catalogue.

    About the bearing

    d×D×Bsize 55 × 120 × 29mm
    Cdynamic 156kN
    C0static 143kN

    Cylindrical roller NJ bearing NJ 311.

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

    Frequently asked questions

    Will 311 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.

    04

    By make and unit

    this bearing is fitted in machines of these makes

    05

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