SKF 22228 CCK/C4W33 spherical roller bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Spherical roller 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 22228 CCK/C4W33
- 222Series
- Spherical roller bearings, 222 series. For the same bore, each series has a different outside diameter and width.
- 28Bore
- 140 mm bore: 28 × 5.
- CCK/C4W33Suffix
- SKF suffix: it defines the variant (sealing, cage, internal clearance or other features).
22228 is the standard (ISO) basic designation: it defines the type, the series and the bore.
Description
The SKF 22228 CCK/C4W33 bearing has a 140 mm bore, a 250 mm outside diameter and a 68 mm width (140 x 250 x 68 mm).
SKF 22228 CCK/C4W33 is a reference of spherical roller bearing, within Bearings. Request a quote for 22228 CCK/C4W33 via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
SKF spherical roller bearings of the 222 series with CCK, C3 or C4 and W33 suffixes are self-aligning bearings with two rows of rollers, tapered bore and stamped steel cage. They are used in applications with misalignment between shaft and housing, significant radial loads and some axial load. MR Accesorios Industriales sells this line for the Argentine industrial market.
The designation 22228 CCK/C3W33 reads as follows: 222 indicates the medium-width spherical roller bearing series; 28 is the size code; CCK defines the internal design with 1:12 tapered bore and stamped steel cage; C3 or C4 indicate the internal radial clearance, greater than normal; W33 indicates that the bearing has a lubrication groove and holes in the outer ring. Examples in the series include several sizes, with C3 or C4 and W33 combinations.
These bearings appear in mining, cement, steel, paper, aggregate processing and heavy transport equipment. They are found in conveyor belts, mills, crushers, screens, industrial fans and paper machines. In Argentina they are common in cement plants, quarries and the oilseed industry, where long shafts and welded structures require tolerating misalignment without losing load capacity.
To select correctly, take into account radial and axial load, speed, type of fit and internal clearance. The CCK tapered bore is mounted on a tapered shaft or adapter sleeve; C3 or C4 clearance is chosen according to working temperature and fit. Grease or oil lubrication must cover the W33 groove and holes. Initial alignment and sealing prevent contamination and extend service life.
Regarding equivalents, spherical roller bearings with tapered bore and similar suffixes are available from different brands, but internal codes and clearances do not always match. Do not replace by number without verifying dimensions, clearance and cage type. Interchangeability between manufacturers requires comparing tolerances and load capacities, not just diameter and width.
If you need to replace a bearing of this series, send us the complete code by WhatsApp to MR Accesorios Industriales. With the exact number, the brand and a photo of the assembly we can guide you toward the right option within the SKF line we sell.
Dimensions
Boundary dimensions of the basic designation 22228 per ISO 15: 140 x 250 x 68 mm (d x D x B).
- Bore
- 140mm
- Outside diameter (D)
- 250mm
- Width (B)
- 68mm
The same size in other brands
Pages from other brands with the basic designation 22228: 140 x 250 x 68 mm (d x D x B) per ISO 15.
- FAG22228-E1-XL22228-E1-XL-K22228-E1A-XL-2RSR-M1 more →
- LINK-BELT22228LB22228LBK22228LBC31 more →
- NSK22228CDE422228CAME422228CDKE41 more →
- NTN22228EAD122228EMD122228EAKD11 more →
- RKB22228
- TIMKEN22228EJ22228EM
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 22228 CCK/C4W33 bearing?
- The SKF 22228 CCK/C4W33 bearing has a 140 mm bore, a 250 mm outside diameter and a 68 mm width (140 x 250 x 68 mm). These are the standardised boundary dimensions (ISO 15) of the basic designation 22228.
- What does the CCK suffix mean on an SKF bearing?
- CCK indicates an internal design with 1:12 tapered bore and stamped steel cage. That bore allows mounting on a tapered shaft or sleeve, which makes it easier to adjust radial clearance and disassemble.
- When is a C3 or C4 clearance preferable to normal?
- C3 or C4 clearance is chosen when the bearing operates at elevated temperature, with tight fits or with misalignments that generate stresses. Greater clearance compensates for expansion and prevents the bearing from becoming preloaded.
- What is the function of the W33 suffix?
- W33 indicates that the outer ring has a lubrication groove and holes. This allows relubrication from the housing or casing, which is useful in hard-to-reach equipment or with long maintenance intervals.