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Drawing of 30203: ⌀17 × ⌀40 × 13.25 mm⌀40⌀17B 12T 13.25C 11α30203
Fig. 1: 30203, end view and section; internal parts simplified per ISO 8826-1. Dimensions in mm

There is no photo of this product: the drawing shows the dimensions of 30203

Combined load at an angle (tapered, high), axial on one sideTapered roller

Bearing SKF 30203

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Specifications

Manufacturer number
GOST number
Equivalents
4 exact, 4 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
T
13.25 mm
Total width TOverall width of an assembled tapered roller bearing. Source: supplier data
Cup width C
11 mm
Cup width CWidth of the outer ring of a tapered roller bearing. Source: supplier data
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Equivalents

the same size 17 × 40 × 13.25 from other brands

9 products
Series illustration (not a photo of this item): 30203
You are viewingSKF 30203

Everything the number specifies matches: series 302, 17 × 40 × 12 mm, ordinary steel, design without special letters. The codes in the number are read against the SKF catalogue.

  • Series illustration (not a photo of this item): 3020330203This bearingSKF17 × 40 × 12available to orderon requestyou are here
  • Series illustration (not a photo of this item): 3020330203CT17 × 40 × 123,232 pcs€0.69Request a quote
  • Series illustration (not a photo of this item): 3020330203NTE17 × 40 × 1290 pcs€1.31Request a quote
  • Series illustration (not a photo of this item): 3020330203KG17 × 40 × 12available to orderon requestRequest a quote
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Details

what this bearing is, questions

About the bearing

d×D×Tsize 17 × 40 × 13.25mm

Tapered roller bearing 30203. Under GOST the same bearing is designated 7203.

Frequently asked questions

What is 7203?

It is the same bearing under GOST 3189-89: 7203 corresponds to the ISO base 30203. Size 17 × 40 × 13.25 mm, a full equivalent of 30203.

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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