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2311 · 55 × 120 × 43

Self-aligning ball · 2311

radial — mediumaxial — low, on both sides
    Drawing of 2311: ⌀55 × ⌀120 × 43 mm⌀120⌀55432311
    Fig. 1: 2311, 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 2311

    Load: radial medium; axial low, on both sidesSelf-aligning ball

    Bearing CT 2311

    €14.45per piece incl. VAT
    In stock: 49 pcs
    In the cart

    Specifications

    Manufacturer number
    GOST number
    Equivalents
    6 exact, 7 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
    43 mm
    Width BRing width. Source: two supplier sources
    Seal
    open, no protection
    Clearance
    normal clearance
    C
    75.2 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
    24 kN
    Basic static load rating C0Permissible load without rotation and under shock; ISO 76 method, manufacturer’s figure. Source: supplier data
    m
    2.1 kg
    MassWeight of the product. Source: supplier data
    01

    Equivalents

    the same size 55 × 120 × 43 from other brands

    13 products
    Series illustration (not a photo of this item): 2311
    You are viewingCT 2311
    €14.45baseline for the price comparison

    Everything the number specifies matches: series 23, 55 × 120 × 43 mm, open, no protection, normal clearance, ordinary steel, design without special letters. The codes in the number are read against the CT catalogue.

    • Series illustration (not a photo of this item): 23112311This bearingCT55 × 120 × 4349 pcs€14.45you are here
    • Photo: 23112311Z&S55 × 120 × 43available to order€31.50+€17.05
    • Photo: 23112311GPZ55 × 120 × 43available to order€39.82+€25.37
    • Photo: 23112311FLT55 × 120 × 43available to order€44.60+€30.15
    • Series illustration (not a photo of this item): 23112311KG55 × 120 × 43available to orderon request
    • Series illustration (not a photo of this item): 23112311SKF55 × 120 × 43available to orderon request

    Under the price: the difference from the price of this bearing (€14.45).
    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

    About the bearing

    d×D×Bsize 55 × 120 × 43mm
    Cdynamic 75.2kN
    C0static 24kN
    mweight 2.1kg

    Self-aligning ball bearing 2311. Under GOST the same bearing is designated 1611.

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

    Frequently asked questions

    What is 1611?

    It is the same bearing under GOST 3189-89: 1611 corresponds to the ISO base 2311. Size 55 × 120 × 43 mm, a full equivalent of 2311.

    Will 2311 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

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