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Drawing of 634 ZZ: ⌀4 × ⌀16 × 5 mm634 ZZZZ
Fig. 1: 634 ZZ, end view and section; internal parts simplified per ISO 8826-1. Dimensions in mm
Bearing SKF 634 ZZ — photo 1
Load: radial medium; axial low, on both sidesDeep groove ball

Bearing SKF 634-ZZ

€9.02per piece
Available to orderThe manager confirms the lead time
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Specifications

Manufacturer number
ISO designation
Equivalents
2 exact, 0 approximate
d
4 mm
Bore diameter dBearing bore = shaft diameter. Source: two supplier sources
D
16 mm
Outside diameter DOutside diameter = housing bore. Source: two supplier sources
B
5 mm
Width BRing width. Source: two supplier sources
Seal
ZZshields, both sides
Clearance
normal clearance
m
0.0054 kg
MassWeight of the product. Source: supplier data
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Equivalents

the same size 4 × 16 × 5 from other brands

2 products
Photo: 634 ZZ
You are viewingSKF 634-ZZ
€9.02baseline for the price comparison

Everything the number specifies matches: ordinary steel, design without special letters. The codes in the number are read against the SKF catalogue.

  • Photo: 634 ZZ634 ZZThis bearingSKF4 × 16 × 5available to order€9.02you are here
  • Series illustration (not a photo of this item): 634 ZZ634 ZZCT4 × 16 × 52,000 pcs€0.22−€8.80Request a quote

Under the price: the difference from the price of this bearing (€9.02).
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Details

what this bearing is, questions

About the bearing

D 16d 4B 5
d×D×Bsize 4 × 16 × 5mm
mweight 0.0054kg

Deep groove ball bearing 634-ZZ, design ZZ: metal shields on both sides.

M: SKF 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.

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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