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61811 2RS · 55 × 72 × 9

Deep groove ball · 61811 2RS

radial — mediumaxial — low, on both sides
    Drawing of 61811 2RS: ⌀55 × ⌀72 × 9 mm61811 2RS2RS
    Fig. 1: 61811 2RS, 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 61811 2RS

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

    Bearing CT 61811 2RS

    €1.80per piece incl. VAT
    In stock: 295 pcs
    In the cart

    Specifications

    Manufacturer number
    ISO designation
    Equivalents
    2 exact, 5 approximate
    d
    55 mm
    Bore diameter dBearing bore = shaft diameter. Source: two supplier sources
    D
    72 mm
    Outside diameter DOutside diameter = housing bore. Source: two supplier sources
    B
    9 mm
    Width BRing width. Source: two supplier sources
    Seal
    2RSrubber, both sides
    Clearance
    normal clearance
    C
    9.04 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
    8.8 kN
    Basic static load rating C0Permissible load without rotation and under shock; ISO 76 method, manufacturer’s figure. Source: supplier data
    m
    0.083 kg
    MassWeight of the product. Source: supplier data
    01

    Equivalents

    the same size 55 × 72 × 9 from other brands

    10 products
    Series illustration (not a photo of this item): 61811 2RS
    You are viewingCT 61811 2RS
    €1.80baseline for the price comparison

    Everything the number specifies matches: series 618, 55 × 72 × 9 mm, contact seals on both sides, 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): 61811 2RS61811 2RSThis bearingCT55 × 72 × 9295 pcs€1.80you are here
    • Series illustration (not a photo of this item): 61811-2RS161811-2RS1SKF55 × 72 × 9available to orderon request

    Under the price: the difference from the price of this bearing (€1.80).
    02

    Often bought with this

    shaft snap ring Ø55, bore snap ring Ø72, seal 55×72

    5 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 Ø72CT SEG 72 W by 1000Why it fits: DIN 472 snap ring for a 72 bore: holds the outer ring in the housing
      €177.06available to order
    • Bore snap ring Ø72SEG 72 W by 1000Why it fits: DIN 472 snap ring for a 72 bore: holds the outer ring in the housing
      Price to be confirmedavailable to order
    • Seal 55×72JULU 055-72-8 TCWhy it fits: Oil seal 55×72: shaft 55 and housing bore 72, the same as the bearing; the bearing has its own seals (2RS), and the oil seal closes the unit from outside
      €0.44190 pcs
    • Seal 55×72JULU 055-72-10 TCWhy it fits: Oil seal 55×72: shaft 55 and housing bore 72, the same as the bearing; the bearing has its own seals (2RS), and the oil seal closes the unit from outside
      €0.51410 pcs
    03

    Details

    what this bearing is, questions

    About the bearing

    D 72d 55B 9
    d×D×Bsize 55 × 72 × 9mm
    Cdynamic 9.04kN
    C0static 8.8kN
    mweight 0.083kg

    Deep groove ball bearing 61811-2RS, design 2RS: contact seals on both sides.

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

    Frequently asked questions

    How does 2RS differ from ZZ?

    2RS has rubber seals that touch the inner ring and keep out dust and water better, which is the usual choice for field machinery. ZZ has metal shields that do not touch, allow higher speeds, and protect against dirt less well.

    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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