Skip to content
All products
Spherical roller bearing with tapered bore and lubrication groove · SKF 21309 E
SKF 21309 E spherical roller bearing

SKFBrand we market

SKF 21309 E spherical roller bearing

Manufacturer Part Number21309 EDimensions: 45 x 100 x 25 mm (d x D x B)Other bearings 45 x 100 x 25 mm →Also searched as: 21309E · 21309-ESKF 213 series: dimension table →
Brand
SKF
Category
Bearings
Request a quote for 21309 E via WhatsApp

We respond promptly.

Since 1945 · Martínez, Buenos Aires, Argentina

Request your quote via WhatsApp or email, with the quantity you need.

Other brands in this category

Ask us about alternatives. Equivalence is verified for each reference and application.

Can't find the exact model? Write to us with the part number or model you're looking for: we'll find it and quote it, even if it's not listed in the catalog.

Ask via WhatsAppAsk via email

How to read SKF 21309 E

213Series
Spherical roller bearings, 213 series. For the same bore, each series has a different outside diameter and width.
09Bore
45 mm bore: 09 × 5.
ESuffix
SKF suffix: it defines the variant (sealing, cage, internal clearance or other features).

21309 is the standard (ISO) basic designation: it defines the type, the series and the bore.

Description

The SKF 21309 E bearing has a 45 mm bore, a 100 mm outside diameter and a 25 mm width (45 x 100 x 25 mm).

SKF 21309 E is a reference of spherical roller bearing, within Bearings. Request a quote for 21309 E via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

SKF E series spherical roller bearings are self-aligning bearings with two rows of rollers and a spherical raceway in the outer ring. They are designed to withstand high radial loads and axial loads in both directions, as well as tolerate angular misalignment between shaft and housing. They are used in applications where shaft deflection or mounting errors require self-aligning capability.

The designation of these bearings follows a clear scheme. The basic number, such as 22205, 22206 or 22208, indicates the size and dimension series. The suffix E indicates an optimized design with higher load capacity than previous versions. In the examples, 22205 E and 22206 E share the suffix, while 22205/20 E shows a variant with a special bore diameter. Knowing these codes helps to quickly identify the right bearing.

In Argentine industry, these bearings are found in mining, cement, steel and material handling equipment. They also appear in conveyor belts, mills, crushers and road machinery, where loads are high and working conditions demanding. Their self-aligning capability makes them useful on long shafts that deflect under load, or in assemblies where perfect alignment between housings cannot be guaranteed.

To select the correct bearing, take into account the radial and axial load it must withstand, the rotational speed and the shaft diameter. The suffix E does not change the external dimensions, but it does change the load capacity. During mounting, ensure adequate lubrication and check the internal clearance; excessive tightness can reduce service life. Initial alignment is less critical than in other types, but it should be checked to avoid unnecessary stresses.

When looking for replacements, remember that designations can vary between manufacturers. A bearing with the same basic designation but from another brand may have a different load capacity. Always verify the critical dimensions and operating conditions before interchanging. At MR Accesorios Industriales we sell SKF as a brand, and we can guide you if you send us the code and working conditions.

If you need SKF E series spherical roller bearings, send us the code on WhatsApp. At MR Accesorios Industriales we quote and help you choose the right option for your equipment. We know the applications and can advise you.

Dimensions

Boundary dimensions of the basic designation 21309 per ISO 15: 45 x 100 x 25 mm (d x D x B).

Bore
45mm
Outside diameter (D)
100mm
Width (B)
25mm

The same size in other brands

Pages from other brands with the basic designation 21309: 45 x 100 x 25 mm (d x D x B) per ISO 15.

They share the boundary dimensions set by ISO 15, not the technical data: seals or shields, internal clearance, cage and load rating can differ by brand and suffix. We quote each one by its full part number.

Frequently Asked Questions

What are the dimensions of the SKF 21309 E bearing?
The SKF 21309 E bearing has a 45 mm bore, a 100 mm outside diameter and a 25 mm width (45 x 100 x 25 mm). These are the standardised boundary dimensions (ISO 15) of the basic designation 21309.
What does the E suffix mean on an SKF bearing?
The E suffix indicates an optimized bearing design with higher radial and axial load capacity. It does not change the external dimensions, but it does change performance. It is common in spherical roller bearings of the 222 series and others.
How do I choose between a 22205 E and a 22205/20 E bearing?
The difference is in the bore diameter. The 22205 E has a standard bore, while the 22205/20 E has a special bore diameter of 20 mm. Check the shaft size before deciding.
Where are SKF E series spherical roller bearings used?
They are used in equipment with high loads and misalignment, such as conveyor belts, mills, crushers and road machinery. Their self-aligning capability makes them ideal for flexible shafts or demanding assemblies.
Request a quote for 21309 E via WhatsApp
Request a quote on WhatsApp