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Drawing of 6304: ⌀20 × ⌀52 × 15 mm6304
Fig. 1: 6304, 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

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

Bearing CT 6304

€0.62per piece
In stock: 1,182 pcs
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Specifications

Manufacturer number
GOST number
Equivalents
5 exact, 46 approximate
d
20 mm
Bore diameter dBearing bore = shaft diameter. Source: two supplier sources
D
52 mm
Outside diameter DOutside diameter = housing bore. Source: two supplier sources
B
15 mm
Width BRing width. Source: two supplier sources
Seal
open, no protection
Clearance
normal clearance
C
16.8 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
7.8 kN
Basic static load rating C0Permissible load without rotation and under shock; ISO 76 method, manufacturer’s figure. Source: supplier data
m
0.14 kg
MassWeight of the product. Source: supplier data
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Equivalents

the same size 20 × 52 × 15 from other brands

53 products
Series illustration (not a photo of this item): 6304
You are viewingCT 6304
€0.62baseline for the price comparison

Everything the number specifies matches: series 63, 20 × 52 × 15 mm, open, no protection, normal clearance, ordinary steel, design without special letters. The codes in the number are read against the CT catalogue.

  • Series illustration (not a photo of this item): 63046304This bearingCT20 × 52 × 151,182 pcs€0.62you are here
  • Photo: 63046304SKF20 × 52 × 15available to order€3.17+€2.55Request a quote
  • Series illustration (not a photo of this item): 63046304FAG20 × 52 × 15available to orderon requestRequest a quote
  • Series illustration (not a photo of this item): 63046304KG20 × 52 × 15available to orderon requestRequest a quote
  • Series illustration (not a photo of this item): 63046304NTE20 × 52 × 15available to orderon requestRequest a quote

Under the price: the difference from the price of this bearing (€0.62).
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Details

what this bearing is, questions

About the bearing

D 52d 20B 15
d×D×Bsize 20 × 52 × 15mm
Cdynamic 16.8kN
C0static 7.8kN
mweight 0.14kg

Deep groove ball bearing 6304. Under GOST the same bearing is designated 304.

C, C₀, m: CT data. Another brand publishes its own figures, so compare them against that brand’s catalogue.

Frequently asked questions

What is 304?

It is the same bearing under GOST 3189-89: 304 corresponds to the ISO base 6304. Size 20 × 52 × 15 mm, a full equivalent of 6304.

Will 6304 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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