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MGK
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 drawing shows the dimensions of 6304 2RS

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

Bearing MGK 6304 2RS

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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
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Equivalents

the same size 20 × 52 × 15 from other brands

55 products
Series illustration (not a photo of this item): 6304 2RS
You are viewingMGK 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 MGK catalogue.
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Details

what this bearing is, questions

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.

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