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Drawing of 6404 ZZ: ⌀20 × ⌀72 × 19 mm6404 ZZZZ
Fig. 1: 6404 ZZ, 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 6404 ZZ

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

Bearing CT 6404 ZZ

€2.87per piece
In stock: 450 pcs
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Specifications

Manufacturer number
ISO designation
GOST number
Equivalents
1 exact, 7 approximate
d
20 mm
Bore diameter dBearing bore = shaft diameter. Source: two supplier sources
D
72 mm
Outside diameter DOutside diameter = housing bore. Source: two supplier sources
B
19 mm
Width BRing width. Source: two supplier sources
Seal
ZZshields, both sides
Clearance
normal clearance
C
30.7 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
15 kN
Basic static load rating C0Permissible load without rotation and under shock; ISO 76 method, manufacturer’s figure. Source: supplier data
m
0.4 kg
MassWeight of the product. Source: supplier data
01

Equivalents

the same size 20 × 72 × 19 from other brands

8 products
Series illustration (not a photo of this item): 6404 ZZ
You are viewingCT 6404 ZZ
€2.87baseline for the price comparison

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

Under the price: the difference from the price of this bearing (€2.87).
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Details

what this bearing is, questions

About the bearing

D 72d 20B 19
d×D×Bsize 20 × 72 × 19mm
Cdynamic 30.7kN
C0static 15kN
mweight 0.4kg

Deep groove ball bearing 6404-ZZ, design ZZ: metal shields on both sides. Under GOST the same bearing is designated 80404.

C, C₀, m: CT 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 80404?

It is the same bearing under GOST 3189-89: 8 — metal shields on both sides, 0404 corresponds to the ISO base 6404. Size 20 × 72 × 19 mm, a full equivalent of 6404-ZZ.

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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