30305 A · 25 × 62 × 18.25

Tapered roller · 30305 A

at an angle — high, on one side

    Drawing of 30305 A: ⌀25 × ⌀62 × 18.25 mm⌀62⌀25B 17T 18.25C 15α30305 A
    Fig. 1: 30305 A, end view and section; internal parts simplified per ISO 8826-1. Dimensions in mm
    Bearing Z&S 30305 A — photo 1
    Bearing Z&S 30305 A — photo 2
    Combined load at an angle (tapered, high), axial on one sideTapered roller

    Bearing Z&S 30305 A

    Price on request
    Available to order

    Specifications

    Manufacturer number
    ISO designation
    GOST number
    OEM number
    25 KB 03
    d
    25 mm
    Bore diameter dBearing bore = shaft diameter. Source: two supplier sources
    D
    62 mm
    Outside diameter DOutside diameter = housing bore. Source: two supplier sources
    B
    17 mm
    Width BRing width. Source: supplier data
    T
    18.25 mm
    Total width TOverall width of an assembled tapered roller bearing. Source: two supplier sources
    Cup width C
    15 mm
    Cup width CWidth of the outer ring of a tapered roller bearing. Source: supplier data
    C
    44.6 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
    43 kN
    Basic static load rating C0Permissible load without rotation and under shock; ISO 76 method, manufacturer’s figure. Source: supplier data
    Limiting speed
    9,000 rpm
    Limiting speedMechanical limit; depends on the seal (SKF 6200: 36,000 open, 17,000 with 2RSH). Source: supplier data
    m
    0.26 kg
    MassWeight of the product. Source: supplier data
    01

    Equivalents

    the same size 25 × 62 × 18.25 from other brands

    14 products
    Photo: 30305 A
    You are viewingZ&S 30305 A

    Same size, different design: the difference is written in the row.

    • Series illustration (not a photo of this item): 3030530305standard designCT25 × 62 × 17129 pcs€1.80
    • Series illustration (not a photo of this item): 3130531305standard designCT25 × 62 × ?14 pcs€2.24
    • Series illustration (not a photo of this item): 3030530305standard designNTE25 × 62 × 17126 pcs€2.40
    • Photo: 31305 A31305 Adifferent series: 31305Z&S25 × 62 × 17available to order€6.24
    • Series illustration (not a photo of this item): 3030530305standard designno brand25 × 62 × 17available to orderon request
    • Series illustration (not a photo of this item): 3130531305standard designCT AGRI25 × 62 × ?available to orderon request
    • Photo: 31305 A31305 Adifferent series: 31305FAG25 × 62 × 17out of stockon request
    • Series illustration (not a photo of this item): 3030530305standard designKG25 × 62 × 17available to orderon request
    • Cross-section drawing to size: Tapered roller, 25 × 62 × T 18.25 mmHR30305J 55, J, HR: not decodedNSK25 × 62 × 17available to orderon request
    • Cross-section drawing to size: Tapered roller, 25 × 62 × T 18.25 mmHR31305J 55, J, HR: not decodedNSK25 × 62 × ?available to orderon request
    02

    Often bought with this

    seal 25×62, shaft snap ring Ø25, bore snap ring Ø62

    5 products
    • Seal 25×62JULU 025-62-10 TCWhy it fits: Oil seal 25×62: shaft 25 and housing bore 62, the same as the bearing
      €0.39890 pcs
    • Seal 25×62JULU 025-62-7 TCWhy it fits: Oil seal 25×62: shaft 25 and housing bore 62, the same as the bearing
      €0.39available to order
    • Shaft snap ring Ø25CT SEG 25 Z by 1000Why it fits: DIN 471 snap ring for a 25 shaft: holds the inner ring on the shaft
      €31.6125 pcs
    • Shaft snap ring Ø25SEG 25 Z (100 pcs)Why it fits: DIN 471 snap ring for a 25 shaft: holds the inner ring on the shaft
      Price to be confirmedavailable to order
    • Bore snap ring Ø62CT SEG 62 W by 1000Why it fits: DIN 472 snap ring for a 62 bore: holds the outer ring in the housing
      €112.8412 pcs
    03

    Details

    what this bearing is, questions

    Where this bearing is fitted

    1 machine1 makeby parts catalogues

    1. KhTZ-2511, KhTZ-3510 KhTZ check the version 1 assembly · 1 pcs per machine

      ours has A; GOST → ISO pair 7305→30305 only CX is not checked against a second source; the type of our item by number does not match its section: please check

      manufacturer’s catalogue: Tractors KhTZ-2511 and KhTZ-3510. Operator’s manual 2511.00.001 RE

    Number in the manufacturer’s catalogue: by GOST (7305) or ISO. “Same geometry” means size and type match; the version is not given in the catalogue.

    About the bearing

    d×D×Tsize 25 × 62 × 18.25mm
    Cdynamic 44.6kN
    C0static 43kN
    mweight 0.26kg

    Tapered roller bearing 30305. Under GOST the same bearing is designated 7305.

    C, C₀, m and limiting speed 9,000 rpm: Z&S data. Another brand publishes its own figures, so compare them against that brand’s catalogue.

    Frequently asked questions

    What is 7305?

    It is the same bearing under GOST 3189-89: 7305 corresponds to the ISO base 30305. Size 25 × 62 × 18.25 mm, a full equivalent of 30305.

    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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