Simplified drawing of the bearing per ISO 8826-1, dimensions of 6305 Z: ⌀25 × ⌀62 × 17 mm⌀62⌀25176305 ZZ
Fig. 1: 6305 Z, simplified drawing per ISO 8826-1. Dimensions in mm

There is no photo of this product: the drawing shows the dimensions of 6305 Z

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

Bearing CT 6305 Z

Price on request
Available to order

Specifications

Manufacturer number
ISO designation
GOST number
d
25 mm
Bore diameter dBearing bore = shaft diameter. Source: supplier data
D
62 mm
Outside diameter DOutside diameter = housing bore. Source: supplier data
B
17 mm
Width BRing width. Source: supplier data
Seal
Zshield, one side
Clearance
normal clearance
C
23.4 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
11.6 kN
Basic static load rating C0Permissible load without rotation and under shock; ISO 76 method, manufacturer’s figure. Source: supplier data
m
0.23 kg
MassWeight of the product. Source: supplier data
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Equivalents

the same size 25 × 62 × 17 from other brands

74 products
Series illustration (not a photo of this item): 6305 Z
You are viewingCT 6305 Z

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

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Details

what this bearing is, questions

About the bearing

D 62d 25B 17
d×D×Bsize 25 × 62 × 17mm
Cdynamic 23.4kN
C0static 11.6kN
mweight 0.23kg

Deep groove ball bearing 6305-Z, design Z: shield on one side. Under GOST the same bearing is designated 60305.

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 60305?

It is the same bearing under GOST 3189-89: 6 — shield on one side, 0305 corresponds to the ISO base 6305. Size 25 × 62 × 17 mm, a full equivalent of 6305-Z.

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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