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61801-2Z · 12 × 21 × 5

Deep groove ball · 61801-2Z

radial — mediumaxial — low, on both sides
    Drawing of 61801-2Z: ⌀12 × ⌀21 × 5 mm61801-2Z2Z
    Fig. 1: 61801-2Z, 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 61801-2Z

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

    Bearing SKF 61801-2Z

    €8.30per piece incl. VAT
    Available to orderThe manager confirms the lead time
    In the cart

    Specifications

    Manufacturer number
    ISO designation
    Equivalents
    5 exact, 11 approximate
    d
    12 mm
    Bore diameter dBearing bore = shaft diameter. Source: two supplier sources
    D
    21 mm
    Outside diameter DOutside diameter = housing bore. Source: two supplier sources
    B
    5 mm
    Width BRing width. Source: two supplier sources
    Seal
    2Zmetal shields on both sides
    Clearance
    normal clearance
    C
    1.7 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: two supplier sources
    C0
    0.915 kN
    Basic static load rating C0Permissible load without rotation and under shock; ISO 76 method, manufacturer’s figure. Source: two supplier sources
    m
    0.006 kg
    MassWeight of the product. Source: two supplier sources
    01

    Equivalents

    the same size 12 × 21 × 5 from other brands

    18 products
    Photo: 61801-2Z
    You are viewingSKF 61801-2Z
    €8.30baseline for the price comparison

    Everything the number specifies matches: series 618, 12 × 21 × 5 mm, metal shields on both sides, normal clearance, ordinary steel, design without special letters. The codes in the number are read against the SKF catalogue.

    • Photo: 61801-2Z61801-2ZThis bearingSKF12 × 21 × 5available to order€8.30you are here
    • Series illustration (not a photo of this item): 61801 ZZ61801 ZZCT12 × 21 × 5210 pcs€0.25−€8.05
    • Series illustration (not a photo of this item): 6801 / 61801 ZZ6801 / 61801 ZZCT12 × 21 × 5976 pcs€0.28−€8.02
    • Series illustration (not a photo of this item): 6801 ZZ6801 ZZCT12 × 21 × 5available to order€0.31−€7.99
    • Series illustration (not a photo of this item): 6801 / 61801 ZZ6801 / 61801 ZZno brand12 × 21 × 5available to orderon request

    Under the price: the difference from the price of this bearing (€8.30).
    02

    Often bought with this

    shaft snap ring Ø12, bore snap ring Ø21

    3 products
    • Shaft snap ring Ø12CT SEG 12 Z (100 pcs)Why it fits: DIN 471 snap ring for a 12 shaft: holds the inner ring on the shaft
      €0.61available to order
    • Shaft snap ring Ø12SEG 12 Z (100 pcs)Why it fits: DIN 471 snap ring for a 12 shaft: holds the inner ring on the shaft
      Price to be confirmedavailable to order
    • Bore snap ring Ø21CT SEG 21 W by 1000Why it fits: DIN 472 snap ring for a 21 bore: holds the outer ring in the housing
      €13.58out of stock
    03

    Details

    what this bearing is, questions

    About the bearing

    D 21d 12B 5
    d×D×Bsize 12 × 21 × 5mm
    Cdynamic 1.7kN
    C0static 0.915kN
    mweight 0.006kg

    Deep groove ball bearing 61801-ZZ, design 2Z: metal shields on both sides.

    C, C₀, m: SKF 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.

    Will 61801 2Z 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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