SKF 2220 KM/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 2220 KM/C3
- 22Series
- Self-aligning ball bearings, 22 series. For the same bore, each series has a different outside diameter and width.
- 20Bore
- 100 mm bore: 20 × 5.
- KM/C3Suffix
- SKF suffix: it defines the variant (sealing, cage, internal clearance or other features).
2220 is the standard (ISO) basic designation: it defines the type, the series and the bore.
Description
The SKF 2220 KM/C3 bearing has a 100 mm bore, a 180 mm outside diameter and a 46 mm width (100 x 180 x 46 mm).
SKF 2220 KM/C3 is a reference of self-aligning ball bearing, within Bearings. Request a quote for 2220 KM/C3 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 raceway in the outer ring, which allows them to align automatically and compensate for angular misalignment between shaft and housing. They are used in applications where shaft deflection or mounting errors are unavoidable. MR Accesorios Industriales sells this line.
The designation of these bearings combines the series number with suffixes that indicate key features. For example, 1322 KM/C3 corresponds to a bearing from series 13, with a tapered bore (suffix K), lubrication groove and hole (M) and C3 internal clearance. In 2220 KM/C3, the prefix 22 indicates a series with higher load capacity. The suffix C3 indicates a radial clearance greater than standard, useful when there are interference fits or thermal gradients. Knowing these codes helps select the correct bearing for each application.
These bearings are used in equipment where precise alignment is difficult to maintain, such as conveyors, industrial fans, centrifugal pumps, textile and agricultural machinery. In Argentina, they are common in the food industry, cement industry and aggregate processing plants. Their self-aligning capability reduces wear and extends service life in assemblies with long shafts or separated housings. They are also used in kiln and dryer rollers, where thermal expansion generates variable misalignments.
To select correctly, take into account radial and axial load, rotation speed and environmental conditions. The tapered bore (suffix K) requires a suitable adapter sleeve, which ensures a controlled interference fit. C3 clearance is recommended when the bearing operates at high temperatures or with tight fits on the shaft. Lubrication must be chosen according to temperature and speed; for high speeds, a medium-consistency grease is suitable. Initial alignment, even though the bearing is self-aligning, must not exceed the permissible limits to avoid additional stresses.
Regarding equivalents, SKF self-aligning ball bearings can be interchanged with those from other brands that follow the same dimensional and suffix designation. For example, an SKF 2220 KM/C3 is equivalent to bearings from other companies with identical nomenclature, provided the tolerances and specified clearance are respected. It is essential to verify the complete code, since small changes in the suffixes modify characteristics such as sealing or lubrication. For replacements, always consult a specialist who can validate interchangeability.
If you need an SKF self-aligning ball bearing, send the complete code by WhatsApp to MR Accesorios Industriales. Our technical team advises you so you can choose the right option for your application. At MR Accesorios Industriales we have the experience to help you find the right solution.
Dimensions
Boundary dimensions of the basic designation 2220 per ISO 15: 100 x 180 x 46 mm (d x D x B).
- Bore
- 100mm
- Outside diameter (D)
- 180mm
- Width (B)
- 46mm
The same size in other brands
Pages from other brands with the basic designation 2220: 100 x 180 x 46 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 2220 KM/C3 bearing?
- The SKF 2220 KM/C3 bearing has a 100 mm bore, a 180 mm outside diameter and a 46 mm width (100 x 180 x 46 mm). These are the standardised boundary dimensions (ISO 15) of the basic designation 2220.
- What does the KM suffix mean on an SKF bearing?
- The KM suffix indicates that the bearing has a lubrication groove and hole in the outer ring. This facilitates relubrication and allows better access for periodic maintenance.
- What is the C3 clearance for in these bearings?
- C3 clearance is a radial clearance greater than normal. It is used when the bearing operates at high temperature or with interference fits, to prevent thermal expansion from eliminating clearance and damaging the bearing.
- Can I replace an SKF bearing with another brand?
- Yes, as long as the dimensional designation and suffixes match. Verify the complete code and consult a specialist to ensure interchangeability and performance.