SKF 1204 EKTN9 self-aligning ball bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Self-aligning ball bearings
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How to read SKF 1204 EKTN9
- 12Series
- Self-aligning ball bearings, 12 series. For the same bore, each series has a different outside diameter and width.
- 04Bore
- 20 mm bore: 04 × 5.
- EKTN9Suffix
- SKF suffix: it defines the variant (sealing, cage, internal clearance or other features).
1204 is the standard (ISO) basic designation: it defines the type, the series and the bore.
Description
The SKF 1204 EKTN9 bearing has a 20 mm bore, a 47 mm outside diameter and a 14 mm width (20 x 47 x 14 mm).
SKF 1204 EKTN9 is a reference of self-aligning ball bearing, within Bearings. Request a quote for 1204 EKTN9 via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
SKF self-aligning ball bearings with the EKTN9 suffix are ball bearings with a spherical outer ring and two rows of balls. Their design compensates for angular misalignment between shaft and housing, making them suitable for applications where precise alignment is difficult to maintain. They are used in power transmission equipment, fans, pumps and machinery in general.
The designation of these bearings follows a clear scheme. The basic number, for example 1205, indicates the size: the first two digits indicate the diameter series and the last one the bore diameter. The suffix EKTN9 provides key information: E indicates that the bearing has a lubrication groove in the outer ring, K that the bore is tapered (taper 1:12), TN9 that the cage is made of polyamide reinforced with fiberglass. Thus, a 1205 EKTN9 is a self-aligning bearing with a tapered bore and polyamide cage, ready to be mounted with an adapter sleeve.
These bearings are used in a wide variety of industrial applications in Argentina. They are common in fans and blowers, where loads are moderate and slight misalignment may occur. They are also found in centrifugal pumps, conveyors, textile machines and belt drive equipment. Their self-aligning capability makes them valuable in assemblies where the shaft may flex or where supports are not perfectly machined. Industries such as food, chemical and process industries use them for their robustness and ease of maintenance.
To correctly select an SKF EKTN9 self-aligning ball bearing, take into account the load and operating speed. The tapered bore allows it to be mounted with an adapter sleeve, which facilitates adjustment and disassembly. The TN9 polyamide cage is suitable for moderate temperatures and offers good fatigue resistance. Proper lubrication is essential: the E groove facilitates greasing through the outer ring. Verify initial alignment, although the bearing compensates for misalignment, it is not unlimited. Sealing will depend on the environment; in dirty environments, consider additional shields.
Regarding equivalences, self-aligning bearings with similar suffixes are available from other brands, but each manufacturer may vary in cage materials, tolerances and load capacity. When looking for a replacement, do not rely only on the basic number: verify that the suffix matches in bore type, cage and lubrication features. SKF is a global reference, and its designations are widely recognized, which facilitates interchangeability. If in doubt, consult a specialist before substituting.
If you need SKF EKTN9 self-aligning ball bearings, at MR Accesorios Industriales we can advise you. Send us the complete part number via WhatsApp and we will quote you shortly. We can help you choose the right bearing for your application.
Dimensions
Boundary dimensions of the basic designation 1204 per ISO 15: 20 x 47 x 14 mm (d x D x B).
- Bore
- 20mm
- Outside diameter (D)
- 47mm
- Width (B)
- 14mm
The same size in other brands
Pages from other brands with the basic designation 1204: 20 x 47 x 14 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 1204 EKTN9 bearing?
- The SKF 1204 EKTN9 bearing has a 20 mm bore, a 47 mm outside diameter and a 14 mm width (20 x 47 x 14 mm). These are the standardised boundary dimensions (ISO 15) of the basic designation 1204.
- What does the EKTN9 suffix mean on an SKF bearing?
- E indicates a lubrication groove in the outer ring, K that the bore is tapered (1:12) and TN9 that the cage is made of polyamide reinforced with fiberglass. These suffixes define key features for mounting and lubrication.
- Does this bearing allow misalignment?
- Yes, self-aligning ball bearings compensate for angular misalignment between shaft and housing. This makes them ideal for applications where precise alignment is difficult to maintain, such as flexible shafts or supports that are not perfectly machined.
- How is a bearing with a tapered bore mounted?
- It is mounted with an adapter sleeve, which facilitates adjustment and disassembly. It is important to follow the manufacturer's instructions to achieve the correct tightening and avoid damage. The taper is 1:12.