Prices are in euros. The final price and delivery cost are confirmed in the quote.
Drawing of 30309: ⌀45 × ⌀100 × 27.25 mm⌀100⌀45B 25T 27.25C 22α30309
Fig. 1: 30309, 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 30309

Combined load at an angle (tapered, high), axial on one sideTapered roller

Bearing CT 30309

€3.37per piece
In stock: 100 pcs

Specifications

Manufacturer number
GOST number
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: supplier data
T
27.25 mm
Total width TOverall width of an assembled tapered roller bearing. Source: two supplier sources
Cup width C
22 mm
Cup width CWidth of the outer ring of a tapered roller bearing. Source: supplier data
C
108 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
120 kN
Basic static load rating C0Permissible load without rotation and under shock; ISO 76 method, manufacturer’s figure. Source: supplier data
m
0.97 kg
MassWeight of the product. Source: supplier data
01

Equivalents

the same size 45 × 100 × 27.25 from other brands

11 products
Series illustration (not a photo of this item): 30309
You are viewingCT 30309
€3.37baseline for the price comparison

Everything the number specifies matches: series 303, 45 × 100 × 25 mm, ordinary steel, design without special letters. The codes in the number are read against the CT catalogue.

  • Series illustration (not a photo of this item): 3030930309This bearingCT45 × 100 × 25100 pcs€3.37you are here
  • Series illustration (not a photo of this item): 3030930309NTE45 × 100 × 2544 pcs€5.95+€2.58Request a quote
  • Series illustration (not a photo of this item): 3030930309no brand45 × 100 × 25available to orderon requestRequest a quote
  • Series illustration (not a photo of this item): 3030930309KG45 × 100 × 25available to orderon requestRequest a quote

Under the price: the difference from the price of this bearing (€3.37).

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Details

what this bearing is, questions

About the bearing

d×D×Tsize 45 × 100 × 27.25mm
Cdynamic 108kN
C0static 120kN
mweight 0.97kg

Tapered roller bearing 30309. Under GOST the same bearing is designated 7309.

C, C₀, m: CT data. Another brand publishes its own figures, so compare them against that brand’s catalogue.

Frequently asked questions

What is 7309?

It is the same bearing under GOST 3189-89: 7309 corresponds to the ISO base 30309. Size 45 × 100 × 27.25 mm, a full equivalent of 30309.

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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