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Drawing of 6405 ZZ/5K: ⌀25 × ⌀80 × 21 mm6405 ZZ/5KZZ
Fig. 1: 6405 ZZ/5K, 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 6405 ZZ/5K

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

Bearing NTN 6405 ZZ/5K

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Specifications

Manufacturer number
ISO designation
GOST number
Equivalents
1 exact, 11 approximate
d
25 mm
Bore diameter dBearing bore = shaft diameter. Source: supplier data
D
80 mm
Outside diameter DOutside diameter = housing bore. Source: supplier data
B
21 mm
Width BRing width. Source: supplier data
Seal
ZZshields, both sides
Clearance
normal clearance
01

Equivalents

the same size 25 × 80 × 21 from other brands

12 products
Drawing: 6405 ZZ/5K
You are viewingNTN 6405 ZZ/5K

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

  • Drawing: 6405 2RS6405 2RScontact seals on both sides, standard designCT25 × 80 × 211,002 pcs€2.95Request a quote
  • Drawing: 6405 2RS6405 2RScontact seals on both sides, standard designno brand25 × 80 × 21available to orderon requestRequest a quote
  • Type diagram, no dimensions: ballSS 6405 2RS INOXcontact seals on both sides, stainless steel, INOX: not decodedLDI25 × 80 × ?available to orderon requestRequest a quote
  • Drawing: 6405 2RS6405 2RScontact seals on both sides, standard designNAF25 × 80 × 21available to orderon requestRequest a quote
  • Drawing: 6405 2RS6405 2RScontact seals on both sides, standard designZEN25 × 80 × 21available to orderon requestRequest a quote
  • Series illustration (not a photo of this item): 64056405open, no protection, standard designCT25 × 80 × 2132 pcs€3.37Request a quote
  • Photo: 64056405open, no protection, standard designZ&S25 × 80 × 21available to order€6.59Request a quote
  • Series illustration (not a photo of this item): 64056405open, no protection, standard designGPZ25 × 80 × 21out of stockon requestRequest a quote
  • Series illustration (not a photo of this item): 64056405open, no protection, standard designKG25 × 80 × 21available to orderon requestRequest a quote
  • Series illustration (not a photo of this item): 6405/C36405/C3open, no protection, clearance C3, standard designSKF25 × 80 × 21available to orderon requestRequest a quote
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Details

what this bearing is, questions

About the bearing

D 80d 25B 21
d×D×Bsize 25 × 80 × 21mm

Deep groove ball bearing 6405-ZZ, design ZZ: metal shields on both sides. Under GOST the same bearing is designated 80405.

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 80405?

It is the same bearing under GOST 3189-89: 8 — metal shields on both sides, 0405 corresponds to the ISO base 6405. Size 25 × 80 × 21 mm, a full equivalent of 6405-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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