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Drawing of 6318 ZZ: ⌀90 × ⌀190 × 43 mm6318 ZZZZ
Fig. 1: 6318 ZZ, end view and section; rolling element geometry per the NSK catalogue. Dimensions in mm

There is no photo of this product: the drawing shows the dimensions of 6318 ZZ

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

Bearing Z&S 6318 ZZ

€46.84per piece
Available to orderThe manager confirms the lead time
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Specifications

Manufacturer number
ISO designation
GOST number
Equivalents
2 exact, 20 approximate
d
90 mm
Bore diameter dBearing bore = shaft diameter. Source: two supplier sources
D
190 mm
Outside diameter DOutside diameter = housing bore. Source: two supplier sources
B
43 mm
Width BRing width. Source: two supplier sources
Seal
ZZshields, both sides
Clearance
normal clearance
C
151 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
108 kN
Basic static load rating C0Permissible load without rotation and under shock; ISO 76 method, manufacturer’s figure. Source: supplier data
Limiting speed
4,200 rpm
Limiting speedMechanical limit; depends on the seal (SKF 6200: 36,000 open, 17,000 with 2RSH). Source: supplier data
m
5.04 kg
MassWeight of the product. Source: supplier data
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Equivalents

the same size 90 × 190 × 43 from other brands

23 products
Photo: 6318 ZZ
You are viewingZ&S 6318 ZZ
€46.84baseline for the price comparison

Everything the number specifies matches: series 63, 90 × 190 × 43 mm, metal shields on both sides, normal clearance, ordinary steel, design without special letters. The codes in the number are read against the Z&S catalogue.

  • Photo: 6318 ZZ6318 ZZThis bearingZ&S90 × 190 × 43available to order€46.84you are here
  • Series illustration (not a photo of this item): 6318-2Z6318-2ZSKF90 × 190 × 43available to orderon requestRequest a quote

Under the price: the difference from the price of this bearing (€46.84).
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Details

what this bearing is, questions

About the bearing

D 190d 90B 43
d×D×Bsize 90 × 190 × 43mm
Cdynamic 151kN
C0static 108kN
mweight 5.04kg

Deep groove ball bearing 6318-ZZ, design ZZ: metal shields on both sides. Under GOST the same bearing is designated 80318.

C, C₀, m and limiting speed 4,200 rpm: Z&S 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 80318?

It is the same bearing under GOST 3189-89: 8 — metal shields on both sides, 0318 corresponds to the ISO base 6318. Size 90 × 190 × 43 mm, a full equivalent of 6318-ZZ.

Will 6318 ZZ C3 fit instead?

Same size, clearance greater than normal. C3 is used where the bearing runs hot or sits on the shaft with an interference fit. If the old bearing is not marked C3, take this one.

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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