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

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

Bearing Z&S 30309 A

€7.78per piece
Available to orderThe manager confirms the lead time

Specifications

Manufacturer number
ISO designation
GOST number
OEM number
1440640X1, 45 KB 03
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
Limiting speed
5,300 rpm
Limiting speedMechanical limit; depends on the seal (SKF 6200: 36,000 open, 17,000 with 2RSH). Source: supplier data
m
0.97 kg
MassWeight of the product. Source: supplier data
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Equivalents

the same size 45 × 100 × 27.25 from other brands

11 products
Photo: 30309 A
You are viewingZ&S 30309 A
€7.78baseline for the price comparison

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

  • Series illustration (not a photo of this item): 3030930309standard designCT45 × 100 × 25100 pcs€3.37−€4.41Request a quote
  • Cross-section drawing to size: Tapered roller, 45 × 100 × T 27.25 mm31309standard designCT45 × 100 × ?22 pcs€4.29−€3.49Request a quote
  • Cross-section drawing to size: Tapered roller, 45 × 100 × T 27.25 mm31309standard designNTE45 × 100 × ?48 pcs€5.72−€2.06Request a quote
  • Series illustration (not a photo of this item): 3030930309standard designNTE45 × 100 × 2544 pcs€5.95−€1.83Request a quote
  • Series illustration (not a photo of this item): 3030930309standard designno brand45 × 100 × 25available to orderon requestRequest a quote
  • Series illustration (not a photo of this item): 3030930309standard designKG45 × 100 × 25available to orderon requestRequest a quote
  • Cross-section drawing to size: Tapered roller, 45 × 100 × T 27.25 mmHR30309J 55, J, HR: not decodedNSK45 × 100 × 25available to orderon requestRequest a quote
  • Cross-section drawing to size: Tapered roller, 45 × 100 × T 27.25 mm31309/CL7CCL7C: not decodedSKF45 × 100 × ?available to orderon requestRequest a quote
  • Photo: 31309 A31309 Adifferent series: 31309Z&S45 × 100 × 25available to orderon requestRequest a quote

Under the price: the difference from the price of this bearing (€7.78).

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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 and limiting speed 5,300 rpm: Z&S 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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