Prices are in euros. The final price and delivery cost are confirmed in the quote.
Drawing of 6303: ⌀17 × ⌀47 × 14 mm6303
Fig. 1: 6303, 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 6303

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

Bearing Koyo 6303

€2.74per piece
In stock: 80 pcs

Specifications

Manufacturer number
GOST number
d
17 mm
Bore diameter dBearing bore = shaft diameter. Source: supplier data
D
47 mm
Outside diameter DOutside diameter = housing bore. Source: supplier data
B
14 mm
Width BRing width. Source: supplier data
Seal
open, no protection
Clearance
normal clearance
C
17 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
6.65 kN
Basic static load rating C0Permissible load without rotation and under shock; ISO 76 method, manufacturer’s figure. Source: supplier data
m
0.115 kg
MassWeight of the product. Source: supplier data
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Equivalents

the same size 17 × 47 × 14 from other brands

42 products
Series illustration (not a photo of this item): 6303
You are viewingKoyo 6303
€2.74baseline for the price comparison

Everything the number specifies matches: series 63, 17 × 47 × 14 mm, open, no protection, normal clearance, ordinary steel, design without special letters. The codes in the number are read against the Koyo catalogue.

  • Series illustration (not a photo of this item): 63036303This bearingKoyo17 × 47 × 1480 pcs€2.74you are here
  • Series illustration (not a photo of this item): 63036303CT17 × 47 × 141,195 pcs€0.65−€2.09Request a quote
  • Photo: 63036303SKF17 × 47 × 14available to order€2.71−€0.03Request a quote
  • Series illustration (not a photo of this item): 63036303KG17 × 47 × 14available to orderon requestRequest a quote

Under the price: the difference from the price of this bearing (€2.74).

02

Details

what this bearing is, questions

About the bearing

D 47d 17B 14
d×D×Bsize 17 × 47 × 14mm
Cdynamic 17kN
C0static 6.65kN
mweight 0.115kg

Deep groove ball bearing 6303. Under GOST the same bearing is designated 303.

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

Frequently asked questions

What is 303?

It is the same bearing under GOST 3189-89: 303 corresponds to the ISO base 6303. Size 17 × 47 × 14 mm, a full equivalent of 6303.

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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