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6308-2Z · 40 × 90 × 23

Deep groove ball · 6308-2Z

radial — mediumaxial — low, on both sides
    Drawing of 6308-2Z: ⌀40 × ⌀90 × 23 mm6308-2Z2Z
    Fig. 1: 6308-2Z, 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 6308-2Z

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

    Bearing SKF 6308-2Z

    €15.35per piece incl. VAT
    Available to orderThe manager confirms the lead time
    In the cart

    Specifications

    Manufacturer number
    ISO designation
    GOST number
    Equivalents
    6 exact, 73 approximate
    d
    40 mm
    Bore diameter dBearing bore = shaft diameter. Source: supplier data
    D
    90 mm
    Outside diameter DOutside diameter = housing bore. Source: supplier data
    B
    23 mm
    Width BRing width. Source: supplier data
    Seal
    2Zmetal shields on both sides
    Clearance
    normal clearance
    C
    42.3 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
    01

    Equivalents

    the same size 40 × 90 × 23 from other brands

    82 products
    Series illustration (not a photo of this item): 6308-2Z
    You are viewingSKF 6308-2Z
    €15.35baseline for the price comparison

    Everything the number specifies matches: series 63, 40 × 90 × 23 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.

    • Series illustration (not a photo of this item): 6308-2Z6308-2ZThis bearingSKF40 × 90 × 23available to order€15.35you are here
    • Series illustration (not a photo of this item): 6308 ZZ6308 ZZCT40 × 90 × 234,632 pcs€2.86−€12.49
    • Series illustration (not a photo of this item): 6308 ZZ6308 ZZNTE40 × 90 × 2344 pcs€4.92−€10.43
    • Photo: 6308 ZZ6308 ZZZ&S40 × 90 × 23available to order€6.97−€8.38
    • Series illustration (not a photo of this item): 6308 ZZ6308 ZZKG40 × 90 × 23available to orderon request
    • Series illustration (not a photo of this item): 6308 ZZE6308 ZZENACHI40 × 90 × 23available to orderon request

    Under the price: the difference from the price of this bearing (€15.35).
    02

    Often bought with this

    shaft snap ring Ø40, bore snap ring Ø90, seal 40×90

    6 products
    • Shaft snap ring Ø40CT SEG 40 Z by 1000Why it fits: DIN 471 snap ring for a 40 shaft: holds the inner ring on the shaft
      €54.16available to order
    • Shaft snap ring Ø40SEG 40 Z (100 pcs)Why it fits: DIN 471 snap ring for a 40 shaft: holds the inner ring on the shaft
      Price to be confirmedavailable to order
    • Bore snap ring Ø90CT SEG 90 W by 100Why it fits: DIN 472 snap ring for a 90 bore: holds the outer ring in the housing
      €23.89available to order
    • Bore snap ring Ø90SEG 90 W by 1000Why it fits: DIN 472 snap ring for a 90 bore: holds the outer ring in the housing
      Price to be confirmedavailable to order
    • Seal 40×90JULU 040-90-10 TCWhy it fits: Oil seal 40×90: shaft 40 and housing bore 90, the same as the bearing; the bearing has its own seals (2Z), and the oil seal closes the unit from outside
      €0.73400 pcs
    • Seal 40×90JULU 040-90-12 TCWhy it fits: Oil seal 40×90: shaft 40 and housing bore 90, the same as the bearing; the bearing has its own seals (2Z), and the oil seal closes the unit from outside
      Price to be confirmedavailable to order
    03

    Details

    what this bearing is, questions

    Where this bearing is fitted

    18 machines3 makesby parts catalogues

    1. KhTZ-17021, KhTZ-17221 KhTZ same geometry 3 assemblies · 4 pcs per machine

      ours: shields on both sides (ZZ); in the machine: open

      manufacturer’s catalogue: Tractors KhTZ-17021 and KhTZ-17221. Operator’s manual 170.00.000 RE

    2. KhTZ-242K.20 KhTZ same geometry 3 assemblies · 4 pcs per machine

      the machine has A; ours does not; ours: shields on both sides (ZZ); in the machine: open

      manufacturer’s catalogue: Tractor KhTZ-242K.20. Operator’s manual

    3. KhTZ-243K.20 KhTZ same geometry 3 assemblies · 4 pcs per machine

      the machine has A; ours does not; ours: shields on both sides (ZZ); in the machine: open

      manufacturer’s catalogue: Tractor KhTZ-243K.20. Operator’s manual

    4. T-150K (KhTZ-150K-09-25) KhTZ same geometry 3 assemblies · 4 pcs per machine

      the machine has A; ours does not; ours: shields on both sides (ZZ); in the machine: open

      manufacturer’s catalogue: Tractor KhTZ-150K-09-25. Operator’s manual 151.00.000-09-25 RE

    5. KhTZ-16131, KhTZ-16331 KhTZ same geometry 2 assemblies · 3 pcs per machine

      ours: shields on both sides (ZZ); in the machine: open

      manufacturer’s catalogue: Tractors KhTZ-16131, KhTZ-16331. Operator’s manual 161.00.000 RE

    Number in the manufacturer’s catalogue: by GOST (80308) or ISO. “Same geometry” means size and type match; the version is not given in the catalogue.

    About the bearing

    D 90d 40B 23
    d×D×Bsize 40 × 90 × 23mm
    Cdynamic 42.3kN

    Deep groove ball bearing 6308-ZZ, design 2Z: metal shields on both sides. Under GOST the same bearing is designated 80308.

    C: 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.

    What is 80308?

    It is the same bearing under GOST 3189-89: 8 — metal shields on both sides, 0308 corresponds to the ISO base 6308. Size 40 × 90 × 23 mm, a full equivalent of 6308-ZZ.

    Will 6308 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

    By make and unit

    this bearing is fitted in machines of these makes

    05

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