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Drawing of 6203 2Z: ⌀17 × ⌀40 × 12 mm6203 2Z2Z
Fig. 1: 6203 2Z, 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 6203-2Z

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

Bearing SKF 6203-2Z

€2.38per piece
In stock: 415 pcs
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Specifications

Manufacturer number
ISO designation
GOST number
Equivalents
10 exact, 67 approximate
d
17 mm
Bore diameter dBearing bore = shaft diameter. Source: two supplier sources
D
40 mm
Outside diameter DOutside diameter = housing bore. Source: two supplier sources
B
12 mm
Width BRing width. Source: two supplier sources
Seal
2Zmetal shields on both sides
Clearance
normal clearance
C0
4.75 kN
Basic static load rating C0Permissible load without rotation and under shock; ISO 76 method, manufacturer’s figure. Source: two supplier sources
01

Equivalents

the same size 17 × 40 × 12 from other brands

79 products
Photo: 6203 2Z
You are viewingSKF 6203-2Z
€2.38baseline for the price comparison

Everything the number specifies matches: series 62, 17 × 40 × 12 mm, metal shields on both sides, normal clearance, ordinary steel, design without special letters. The codes in the number are read against the SKF catalogue.

Under the price: the difference from the price of this bearing (€2.38).
02

Details

what this bearing is, questions

About the bearing

D 40d 17B 12
d×D×Bsize 17 × 40 × 12mm
C0static 4.75kN

Deep groove ball bearing 6203-ZZ, design 2Z: metal shields on both sides. Under GOST the same bearing is designated 80203.

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

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 80203?

It is the same bearing under GOST 3189-89: 8 — metal shields on both sides, 0203 corresponds to the ISO base 6203. Size 17 × 40 × 12 mm, a full equivalent of 6203-ZZ.

Will 6203 2Z 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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