SKF 1308 EM self-aligning ball bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Self-aligning ball bearings
We respond promptly.
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 1308 EM
- 13Series
- Self-aligning ball bearings, 13 series. For the same bore, each series has a different outside diameter and width.
- 08Bore
- 40 mm bore: 08 × 5.
- EMSuffix
- SKF suffix: it defines the variant (sealing, cage, internal clearance or other features).
1308 is the standard (ISO) basic designation: it defines the type, the series and the bore.
Description
The SKF 1308 EM bearing has a 40 mm bore, a 90 mm outside diameter and a 23 mm width (40 x 90 x 23 mm).
SKF 1308 EM is a reference of self-aligning ball bearing, within Bearings. Request a quote for 1308 EM via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
The SKF EM series self-aligning ball bearing is a double-row ball bearing with a spherical outer raceway, which allows it to self-align and absorb angular misalignment between shaft and housing. It is used in applications where mounting is not perfect or the shaft flexes, such as fans, pumps, conveyors and agricultural machinery. Its robust design withstands moderate radial and axial loads in both directions. MR Accesorios Industriales supplies this series as a brand, with technical advice to choose the right size.
The EM series designation is read by the basic number and the suffix. For example, 1206 EM, 1308 EM, 2307 EM, 2308 EM and 2309 EM share the EM suffix, which indicates an execution with machined brass cage and higher-capacity balls. The first digit or digits identify the type and dimensional series: 12, 13 and 23 correspond to different width-to-diameter ratios. The last two digits indicate the bore diameter in coded form. To interpret each code in detail, ask us with the full number.
These bearings are used in equipment where there is misalignment or shaft flexing. In Argentina they are found in industrial fans, centrifugal pumps, belt conveyors, food industry machines, milling equipment and agricultural machinery. Also in dryers, mixers and transmission systems where the housing is not perfectly rigid. Their self-aligning capability reduces wear and extends service life in the face of mountings with small parallelism or angularity errors.
To select the correct bearing, take into account the radial and axial load, the rotational speed and the environment. Sealing is key: if there is dust or moisture, choose variants with seals or shields. Lubrication must be adequate and renewed according to the duty cycle. During mounting, verify initial alignment and avoid impacts that damage the balls or the raceway. Incorrect fitting can cancel the self-aligning capability. If you have doubts, send us your equipment data and we will advise you.
As for equivalents, self-aligning ball bearings from different brands share standardized dimensions, so they are usually interchangeable if the type, dimensional series and execution suffix match. However, not all brands offer exactly the same cage, sealing or internal clearance variants. Therefore, before replacing, compare the full code and the service conditions. At MR Accesorios Industriales we supply SKF as a brand and can guide you on the right alternative for your application.
If you need an SKF EM series self-aligning ball bearing, send us the full code on WhatsApp. At MR Accesorios Industriales we will quote you and help you confirm the size and execution that best suits your equipment.
Dimensions
Boundary dimensions of the basic designation 1308 per ISO 15: 40 x 90 x 23 mm (d x D x B).
- Bore
- 40mm
- Outside diameter (D)
- 90mm
- Width (B)
- 23mm
The same size in other brands
Pages from other brands with the basic designation 1308: 40 x 90 x 23 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 1308 EM bearing?
- The SKF 1308 EM bearing has a 40 mm bore, a 90 mm outside diameter and a 23 mm width (40 x 90 x 23 mm). These are the standardised boundary dimensions (ISO 15) of the basic designation 1308.
- What does the EM suffix mean on an SKF self-aligning ball bearing?
- The EM suffix indicates an execution with machined brass cage and higher load capacity balls. This configuration is common in demanding applications where robustness and heat dissipation are required. To confirm the exact variant of your bearing, it is necessary to see the full code.
- How do I choose between a self-aligning ball bearing and a deep groove ball bearing?
- Choose a self-aligning ball bearing when the shaft may flex or the housing is not perfectly aligned, because its spherical raceway allows self-alignment. If alignment is precise and there is no misalignment, a deep groove ball bearing may be sufficient and more economical. Also consider loads and speeds.
- Are SKF EM series self-aligning ball bearings interchangeable with other brands?
- Yes, in general they are interchangeable if the standardized dimensions, type and execution suffix match. But the cage, sealing or internal clearance may vary between manufacturers. Before replacing, compare the full code and ask us to ensure compatibility.