Drawing of 3203: ⌀17 × ⌀40 × 17.5 mm⌀40⌀1717.53203
Fig. 1: 3203, 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 3203

Combined load at an angle (angular contact), axial on one sideAngular contact ball

Bearing CT 3203

Price on request
Available to order

Specifications

Manufacturer number
GOST number
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
17.5 mm
Width BRing width. Source: supplier data
Seal
open, no protection
C
14.3 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
8.8 kN
Basic static load rating C0Permissible load without rotation and under shock; ISO 76 method, manufacturer’s figure. Source: supplier data
m
0.095 kg
MassWeight of the product. Source: supplier data
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Equivalents

the same size 17 × 40 × 17.5 from other brands

36 products
Series illustration (not a photo of this item): 3203
You are viewingCT 3203

Same size, different design: the difference is written in the row.

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Details

what this bearing is, questions

About the bearing

D 40d 17B 17.5
d×D×Bsize 17 × 40 × 17.5mm
Cdynamic 14.3kN
C0static 8.8kN
mweight 0.095kg

Angular contact ball bearing 3203. Under GOST the same bearing is designated 3056203.

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

Frequently asked questions

What is 3056203?

It is the same bearing under GOST 3189-89: 3056203 corresponds to the ISO base 3203. Size 17 × 40 × 17.5 mm, a full equivalent of 3203.

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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