SKF 1306 EKTN9/C3 self-aligning ball bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Self-aligning ball bearings
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Since 1945 · Martínez, Buenos Aires, Argentina
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Other brands in this category
Ask us about alternatives. Equivalence is verified for each reference and application.
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How to read SKF 1306 EKTN9/C3
- 13Series
- Self-aligning ball bearings, 13 series. For the same bore, each series has a different outside diameter and width.
- 06Bore
- 30 mm bore: 06 × 5.
- EKTN9/C3Suffix
- SKF suffix: it defines the variant (sealing, cage, internal clearance or other features).
1306 is the standard (ISO) basic designation: it defines the type, the series and the bore.
Description
The SKF 1306 EKTN9/C3 bearing has a 30 mm bore, a 72 mm outside diameter and a 19 mm width (30 x 72 x 19 mm).
SKF 1306 EKTN9/C3 is a reference of self-aligning ball bearing, within Bearings. Request a quote for 1306 EKTN9/C3 via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
SKF EKTN series self-aligning ball bearings are ball bearings with a spherical outer ring and two rows of balls, which allows them to self-align and compensate for angular misalignment between shaft and housing. They are used in applications where the shaft may flex or where mounting is not perfectly parallel, such as fans, conveyors or agricultural machinery. MR Accesorios Industriales sells this line, with technical advice to choose the right size.
The designation of these bearings follows the SKF scheme: the basic number (for example, 1205, 1206, 1207) indicates the series and size; the letter E indicates an internally optimized design; KTN9 corresponds to the glass fiber reinforced polyamide cage, suitable for moderate temperatures; and the suffix /C3 indicates a greater internal radial clearance than standard, useful when there are tight fits or thermal differences between shaft and housing. Thus, a 1205 EKTN9/C3 combines size, cage and clearance according to the application.
These bearings are found in equipment where alignment is not perfect: industrial fans, dryers, belt conveyors, machines for the food industry, mixers and agricultural equipment. In Argentina, they are commonly seen in food plants, cement plants and maintenance workshops looking for a simple solution for shafts that become misaligned due to flexing or mounting. Their self-aligning capability reduces the risk of premature failures and simplifies mounting.
To select correctly, take into account radial and axial load, rotation speed and environmental conditions. Sealing is key: if there is dust or moisture, consider variants with seals or shields. Lubrication must be suitable for the temperature and speed; in many cases, lithium grease is sufficient, but verify compatibility. C3 clearance is recommended when the fit is tight or there are thermal gradients. During mounting, ensure reasonable initial alignment and avoid impacts that damage the raceways.
Regarding equivalents, SKF self-aligning ball bearings can be interchanged with those of other brands that follow the same basic designation, such as FAG, NSK or NTN, but always verify tolerances and internal clearance, as they may vary. MR Accesorios Industriales can help you find the right replacement within its product line.
If you already have the part number of your SKF self-aligning ball bearing, send it by WhatsApp to MR Accesorios Industriales and we will quote the exact size. We can also advise you if you need a sealed variant or a different clearance. MR is your partner for bearings and power transmission.
Dimensions
Boundary dimensions of the basic designation 1306 per ISO 15: 30 x 72 x 19 mm (d x D x B).
- Bore
- 30mm
- Outside diameter (D)
- 72mm
- Width (B)
- 19mm
The same size in other brands
Pages from other brands with the basic designation 1306: 30 x 72 x 19 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 1306 EKTN9/C3 bearing?
- The SKF 1306 EKTN9/C3 bearing has a 30 mm bore, a 72 mm outside diameter and a 19 mm width (30 x 72 x 19 mm). These are the standardised boundary dimensions (ISO 15) of the basic designation 1306.
- What does the C3 suffix mean in an SKF self-aligning ball bearing?
- The C3 suffix indicates a greater internal radial clearance than standard. It is used when the fit is tight, there are thermal differences between shaft and housing, or deformation needs to be compensated. It is not an excessive clearance, but a controlled additional play.
- Do these bearings come with seals?
- The EKTN series we mention is normally supplied open, without seals. If your application requires protection against dust or moisture, ask us about sealed or shielded variants, or consider adding external oil seals.
- Can I replace an SKF self-aligning ball bearing with one from another brand?
- Yes, as long as the main dimensions and internal clearance match. Brands such as FAG, NSK or NTN have equivalents, but verify tolerances and the suffix. If you have doubts, send us the part number and we will advise you.