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ISB
6304 2RS · 20 × 52 × 15

Deep groove ball · 6304 2RS

radial — mediumaxial — low, on both sides
    Drawing of 6304 2RS: ⌀20 × ⌀52 × 15 mm6304 2RS2RS
    Fig. 1: 6304 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 6304 2RS

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

    Bearing ISB 6304 2RS

    Price on request
    Available to order
    Request a quoteIn the cart: send the request

    Specifications

    Manufacturer number
    ISO designation
    GOST number
    Equivalents
    13 exact, 37 approximate
    d
    20 mm
    Bore diameter dBearing bore = shaft diameter. Source: supplier data
    D
    52 mm
    Outside diameter DOutside diameter = housing bore. Source: supplier data
    B
    15 mm
    Width BRing width. Source: supplier data
    Seal
    2RSrubber, both sides
    Clearance
    normal clearance
    01

    Equivalents

    the same size 20 × 52 × 15 from other brands

    55 products
    Series illustration (not a photo of this item): 6304 2RS
    You are viewingISB 6304 2RS

    Everything the number specifies matches: series 63, 20 × 52 × 15 mm, contact seals on both sides, normal clearance, ordinary steel, design without special letters. The codes in the number are read against the ISB catalogue.

    • Series illustration (not a photo of this item): 6304 2RS6304 2RSThis bearingISB20 × 52 × 15available to orderon requestyou are here
    • Photo: 6304 2RS6304 2RSCT20 × 52 × 15902 pcs€0.82
    • Series illustration (not a photo of this item): 6304 2NSE6304 2NSENACHI20 × 52 × 15100 pcs€3.91
    • Series illustration (not a photo of this item): 6304 2RS6304 2RSKoyo20 × 52 × 15334 pcs€4.63
    • Series illustration (not a photo of this item): 6304-2RSH6304-2RSHSKF20 × 52 × 153,066 pcs€5.22
    • Series illustration (not a photo of this item): 6304 2RS6304 2RSNTE20 × 52 × 15available to order€1.11
    • Photo: 6304 2RS6304 2RSZ&S20 × 52 × 15available to order€1.82
    • Photo: 6304 2RS6304 2RSTIMKEN20 × 52 × 15available to order€6.50
    • Series illustration (not a photo of this item): 6304 2RS6304 2RSno brand20 × 52 × 15available to orderon request
    • Series illustration (not a photo of this item): 6304 2RS6304 2RSKG20 × 52 × 15available to orderon request
    02

    Often bought with this

    shaft snap ring Ø20, bore snap ring Ø52, seal 20×52

    6 products
    • Shaft snap ring Ø20CT SEG 20 Z by 1000Why it fits: DIN 471 snap ring for a 20 shaft: holds the inner ring on the shaft
      €22.57available to order
    • Shaft snap ring Ø20SEG 20 Z (100 pcs)Why it fits: DIN 471 snap ring for a 20 shaft: holds the inner ring on the shaft
      Price to be confirmedavailable to order
    • Bore snap ring Ø52CT SEG 52 W by 1000Why it fits: DIN 472 snap ring for a 52 bore: holds the outer ring in the housing
      €86.47available to order
    • Bore snap ring Ø52CT-RING SEG 52 W (100 pcs)Why it fits: DIN 472 snap ring for a 52 bore: holds the outer ring in the housing
      Price to be confirmedavailable to order
    • Seal 20×52JULU 020-52-10 TCWhy it fits: Oil seal 20×52: shaft 20 and housing bore 52, the same as the bearing; the bearing has its own seals (2RS), and the oil seal closes the unit from outside
      €0.392,570 pcs
    • Seal 20×52JULU 020-52-7 TCWhy it fits: Oil seal 20×52: shaft 20 and housing bore 52, the same as the bearing; the bearing has its own seals (2RS), and the oil seal closes the unit from outside
      €0.391,300 pcs
    03

    Details

    what this bearing is, questions

    Where this bearing is fitted

    7 machines3 makesby parts catalogues

    1. Maschio Tigre (disc harrow) Maschio Gaspardo exactly this number 1 assembly

      manufacturer’s catalogue: maschio_tigre-2016

    2. Maschio U/​UL/​Cobra (rotary tiller) Maschio Gaspardo exactly this number 1 assembly

      manufacturer’s catalogue: maschio_u-ul-cobra-2006

    3. Belarus-152 Belarus same geometry 4 assemblies · 4 pcs per machine

      the machine has A; ours does not; ours: seals on both sides (2RS); in the machine: open

      manufacturer’s catalogue: BELARUS-152. 152-0000010 KDS. Catalogue of assembly units and parts (OJSC MTZ, 2016)

    4. Gaspardo Primavera (pneumatic seed drill) Maschio Gaspardo same geometry 2 assemblies

      ours: seals on both sides (2RS); in the machine: shield on one side

      manufacturer’s catalogue: maschio_primavera-2009

    5. Belarus 922.3/​922.4 Belarus same geometry 1 assembly · 2 pcs per machine

      the machine has A; ours does not; ours: seals on both sides (2RS); in the machine: open

      manufacturer’s catalogue: BELARUS 922.3/​922.4. 922-0000010 KDS. Catalogue of parts and assembly units, 2013 (RUE MTZ)

    Number in the manufacturer’s catalogue: by GOST (180304) or ISO. “Same geometry” means size and type match; the version is not given in the catalogue.

    About the bearing

    D 52d 20B 15
    d×D×Bsize 20 × 52 × 15mm

    Deep groove ball bearing 6304-2RS, design 2RS: contact seals on both sides. Under GOST the same bearing is designated 180304.

    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 180304?

    It is the same bearing under GOST 3189-89: 18 — contact seals on both sides, 0304 corresponds to the ISO base 6304. Size 20 × 52 × 15 mm, a full equivalent of 6304-2RS.

    Will 6304 2RS 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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