SKF 1218/C5 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 1218/C5
- 12Series
- Self-aligning ball bearings, 12 series. For the same bore, each series has a different outside diameter and width.
- 18Bore
- 90 mm bore: 18 × 5.
- C5Suffix
- SKF suffix: it defines the variant (sealing, cage, internal clearance or other features).
1218 is the standard (ISO) basic designation: it defines the type, the series and the bore.
Description
The SKF 1218/C5 bearing has a 90 mm bore, a 160 mm outside diameter and a 30 mm width (90 x 160 x 30 mm).
SKF 1218/C5 is a reference of self-aligning ball bearing, within Bearings. Request a quote for 1218/C5 via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
SKF self-aligning ball bearings are double-row ball bearings with a spherical outer ring raceway, designed to carry radial and axial loads in both directions and to tolerate angular misalignment between shaft and housing. They are used in equipment where shaft deflection or mounting errors are unavoidable. MR Accesorios Industriales sells this line.
The designation of these bearings combines a basic number and suffixes that indicate particular features. For example, 1215/C3 corresponds to series 12, which has a light-section design, while 1314/C3 belongs to series 13, which has a more robust section. The suffix /C3 indicates an internal radial clearance greater than standard, suitable for applications with tight fits or elevated temperatures. In 1218/C5, the suffix /C5 indicates an even greater clearance. Knowing these codes allows you to select the correct bearing for each mounting.
These bearings are used in industries such as food processing, cement, mining, paper and materials handling. In Argentina, they are commonly found in belt conveyors, vibrating screens, mills, mixers and industrial fans. Their self-aligning capability makes them ideal for equipment where shafts deflect under load or where housings are not perfectly aligned. They are also used in agricultural machinery and in power transmission systems operating in dusty or humid environments.
To select correctly, take into account the radial and axial load, the rotational speed and the environmental conditions. Sealing is key: if there is contamination, choose variants with seals or shields. The internal clearance must be appropriate for the fit and the working temperature; insufficient clearance can cause overheating. During mounting, ensure careful initial alignment and adequate lubrication, whether with grease or oil. Permissible misalignment is limited, not to be confused with total freedom.
As for equivalents, SKF self-aligning ball bearings can be interchanged with those of other brands that follow the same standardized dimensions. However, always verify the complete part number and tolerances, because clearance suffixes and sealing variants are not universal. MR Accesorios Industriales sells SKF, which guarantees traceability and quality. If you need to replace a bearing, compare the critical dimensions and consult our technical team to avoid premature failures.
To request a quote, send the exact bearing part number by WhatsApp to MR Accesorios Industriales. If you do not have it at hand, we can help you identify it from the shaft and housing dimensions, or from the working conditions. We advise you so you choose the most convenient option and avoid unplanned downtime.
Dimensions
Boundary dimensions of the basic designation 1218 per ISO 15: 90 x 160 x 30 mm (d x D x B).
- Bore
- 90mm
- Outside diameter (D)
- 160mm
- Width (B)
- 30mm
The same size in other brands
Pages from other brands with the basic designation 1218: 90 x 160 x 30 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 1218/C5 bearing?
- The SKF 1218/C5 bearing has a 90 mm bore, a 160 mm outside diameter and a 30 mm width (90 x 160 x 30 mm). These are the standardised boundary dimensions (ISO 15) of the basic designation 1218.
- What does the /C3 suffix mean in a self-aligning ball bearing?
- The /C3 suffix indicates an internal radial clearance greater than standard. It is chosen when the shaft or housing fit is tighter than normal, or when the working temperature is high, to prevent the bearing from having insufficient clearance and overheating.
- When is it better to use a self-aligning ball bearing instead of a deep groove ball bearing?
- When there is misalignment between the shaft and the housing, or when the shaft deflects under load. The self-aligning ball bearing compensates for those angular deviations, while a deep groove bearing would transmit them to the raceways and shorten its service life.
- How do I request a quote for an SKF bearing from MR?
- Send the complete part number by WhatsApp, for example 1215/C3 or 1316/C3. If you do not have it, indicate the shaft and housing dimensions and the type of load. We reply with the corresponding reference and technical advice.