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Drawing of 51209: ⌀45 × ⌀73 × 20 mm⌀73⌀452051209
Fig. 1: 51209, 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 51209

Load: no radial load; axial medium, on one sideThrust ball

Bearing Z&S 51209

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Specifications

Manufacturer number
GOST number
Equivalents
4 exact, 1 approximate
d
45 mm
Bore diameter dBearing bore = shaft diameter. Source: two supplier sources
D
73 mm
Outside diameter DOutside diameter = housing bore. Source: two supplier sources
H
20 mm
Height HMounting height: the distance between the seating faces of the washers of an assembled thrust bearing (ISO 104). Source: supplier data
m
0.32 kg
MassWeight of the product. Source: supplier data
01

Equivalents

the same size 45 × 73 × 20 from other brands

6 products
Photo: 51209
You are viewingZ&S 51209

Everything the number specifies matches: series 512, 45 × 73 × 20 mm, ordinary steel, design without special letters. The codes in the number are read against the Z&S catalogue.
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Details

what this bearing is, questions

About the bearing

d×D×Hsize 45 × 73 × 20mm
mweight 0.32kg

Thrust ball bearing 51209. Under GOST the same bearing is designated 8209.

M: Z&S data. Another brand publishes its own figures, so compare them against that brand’s catalogue.

Frequently asked questions

What is 8209?

It is the same bearing under GOST 3189-89: 8209 corresponds to the ISO base 51209. Size 45 × 73 × 20 mm, a full equivalent of 51209.

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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