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Simplified drawing of the bearing per ISO 8826-1, dimensions of 6203 Z: ⌀17 × ⌀40 × 12 mm⌀40⌀17126203 ZZ
Fig. 1: 6203 Z, simplified drawing per ISO 8826-1. Dimensions in mm

There is no photo of this product: the drawing shows the dimensions of 6203-Z

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

Bearing SKF 6203-Z

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Specifications

Manufacturer number
ISO designation
GOST number
Equivalents
3 exact, 75 approximate
d
17 mm
Bore diameter dBearing bore = shaft diameter. Source: supplier data
D
40 mm
Outside diameter DOutside diameter = housing bore. Source: supplier data
B
12 mm
Width BRing width. Source: supplier data
Seal
Zshield, one side
Clearance
normal clearance
01

Equivalents

the same size 17 × 40 × 12 from other brands

79 products
Cross-section drawing to size: Deep groove ball, 17 × 40 × 12 mm
You are viewingSKF 6203-Z

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

  • Cross-section drawing to size: Deep groove ball, 17 × 40 × 12 mm6203 ZThis bearingSKF17 × 40 × 12available to orderon requestyou are here
  • Cross-section drawing to size: Deep groove ball, 17 × 40 × 12 mm6203 ZCT17 × 40 × 12available to orderon requestRequest a quote
  • Cross-section drawing to size: Deep groove ball, 17 × 40 × 12 mm6203 ZKG17 × 40 × 12available to orderon requestRequest a quote
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Details

what this bearing is, questions

About the bearing

D 40d 17B 12
d×D×Bsize 17 × 40 × 12mm

Deep groove ball bearing 6203-Z, design Z: shield on one side. Under GOST the same bearing is designated 60203.

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 60203?

It is the same bearing under GOST 3189-89: 6 — shield on one side, 0203 corresponds to the ISO base 6203. Size 17 × 40 × 12 mm, a full equivalent of 6203-Z.

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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