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Drawing of 6309-2RS1: ⌀45 × ⌀100 × 25 mm6309-2RS12RS1
Fig. 1: 6309-2RS1, 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 6309-2RS1

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

Bearing SKF 6309-2RS1

€17.41per piece
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Specifications

Manufacturer number
ISO designation
GOST number
Equivalents
10 exact, 52 approximate
d
45 mm
Bore diameter dBearing bore = shaft diameter. Source: two supplier sources
D
100 mm
Outside diameter DOutside diameter = housing bore. Source: two supplier sources
B
25 mm
Width BRing width. Source: two supplier sources
Seal
2RS1contact seals on both sides
Clearance
normal clearance
C
55.3 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: two supplier sources
C0
31.5 kN
Basic static load rating C0Permissible load without rotation and under shock; ISO 76 method, manufacturer’s figure. Source: two supplier sources
m
0.841 kg
MassWeight of the product. Source: two supplier sources
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Equivalents

the same size 45 × 100 × 25 from other brands

63 products
Photo: 6309-2RS1
You are viewingSKF 6309-2RS1
€17.41baseline for the price comparison

Everything the number specifies matches: series 63, 45 × 100 × 25 mm, contact seals on both sides, normal clearance, ordinary steel, design without special letters. The codes in the number are read against the SKF catalogue.

Under the price: the difference from the price of this bearing (€17.41).
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Details

what this bearing is, questions

About the bearing

D 100d 45B 25
d×D×Bsize 45 × 100 × 25mm
Cdynamic 55.3kN
C0static 31.5kN
mweight 0.841kg

Deep groove ball bearing 6309-2RS, design 2RS1: contact seals on both sides. Under GOST the same bearing is designated 180309.

C, C₀, 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.

What is 180309?

It is the same bearing under GOST 3189-89: 18 — contact seals on both sides, 0309 corresponds to the ISO base 6309. Size 45 × 100 × 25 mm, a full equivalent of 6309-2RS.

Will 6309 2RS1 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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