SKF 239/1180 CAKF/W33 spherical roller bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Spherical roller bearings
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Decoding SKF 239/1180 CAKF/W33
- 239Series
- Spherical roller bearings, 239 series. Series differ in outside diameter and width even when the bore is the same.
- /1180Bore
- Bore: 1180 mm.
- CAKF/W33Suffix
- SKF suffix: identifies the variant, such as seals or shields, cage, internal clearance or other features.
239/1180 is the standard ISO basic designation, which sets the bearing type, series and bore.
Description
SKF 239/1180 CAKF/W33 measures 1180 mm across the bore and 1540 mm across the outside diameter; its width is 272 mm (1180 x 1540 x 272 mm).
SKF 239/1180 CAKF/W33 belongs to spherical roller bearing, part of our Bearings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for 239/1180 CAKF/W33 and any equivalents.
When you need a bearing that handles both radial and axial loads while tolerating shaft misalignment, the SKF spherical roller bearing is a solid choice. Its double-row, self-aligning design compensates for mounting errors or shaft deflection, helping to prevent premature failure. These bearings are common in tough industrial settings such as mills, conveyors, and mining equipment. MR Industrial Accessories supplies this line to customers across the United States and Latin America.
The CAKF/W designation packs a lot of information into a few letters. CA means the bearing has a machined brass window cage guided by the inner ring, built for high loads. K indicates a tapered bore with a 1:12 taper, which simplifies mounting on adapter sleeves or tapered shafts. F refers to a lubrication groove and three holes in the outer ring. W followed by a number, as in 239/1180 CAKF/W33, denotes a groove and lubrication holes in the outer ring, with 33 specifying the groove type. This combination supports efficient lubrication and flexible mounting options.
You will find these bearings in demanding sectors like cement, mining, steel, and paper. They are frequently used in ball mills, crushers, vibrating screens, conveyor belts, industrial fans, and paper machines. Their ability to handle combined loads and misalignment makes them suitable for equipment subject to vibration and shock. In pulp plants and steel mills, for example, they are mounted on support rollers and rolling cylinders, where reliability is critical for continuous production.
Selecting the right spherical roller bearing involves considering radial and axial loads, speed, lubrication, and sealing. The CAKF/W series allows regreasing through the outer ring groove and holes without disassembly. The K tapered bore requires a controlled interference fit on the shaft or adapter sleeve; check internal clearance after mounting. Initial alignment is less critical due to self-alignment, but proper lubrication and contaminant exclusion are essential. For high temperatures, consider synthetic lubricants and metal cages.
SKF spherical roller bearings can be interchanged with equivalent brands that use the same international designation, such as FAG, NSK, NTN, or Timken. Always verify tolerances, internal clearance, and suffix details, as these can differ between manufacturers. The CAKF/W series from SKF is recognized for its quality and durability, but when substituting another brand, confirm that the code and specifications match your application. Contact our technical team to validate interchangeability.
To request a quote or confirm a specific part number, send the full designation via WhatsApp or email to MR Industrial Accessories. Our team responds promptly and can suggest equivalents or help you choose the right bearing for your equipment.
Dimensions
1180 x 1540 x 272 mm (d x D x B): boundary dimensions for basic designation 239/1180, according to ISO 15.
- Bore
- 1180mm
- Outside diameter (D)
- 1540mm
- Width (B)
- 272mm
Same size, other brands
Other brands' pages with basic designation 239/1180: 1180 x 1540 x 272 mm (d x D x B) per ISO 15.
What they share are the ISO 15 boundary dimensions, not the specs: seals or shields, internal clearance, cage and load rating may vary with brand and suffix. Every quote is by full part number.
Frequently asked questions
- SKF 239/1180 CAKF/W33 bearing: what are its dimensions?
- SKF 239/1180 CAKF/W33 measures 1180 mm across the bore and 1540 mm across the outside diameter; its width is 272 mm (1180 x 1540 x 272 mm). Those are the boundary dimensions standardized in ISO 15 for basic designation 239/1180.
- What does the CAKF/W33 suffix mean in an SKF bearing?
- CA stands for a machined brass cage guided by the inner ring; K for a tapered bore with 1:12 taper; F for a lubrication groove and holes in the outer ring; W33 for a groove and three lubrication holes. This combination simplifies mounting and lubrication in demanding applications.
- How is a bearing with a K tapered bore mounted?
- The tapered bore is mounted on a tapered shaft or an adapter sleeve. After fitting, check the internal clearance because interference reduces it. Follow the manufacturer's recommendations to avoid damage and ensure proper operation.
- Where are SKF spherical roller bearings used?
- They are used in equipment with combined radial and axial loads and possible misalignment, such as mills, crushers, conveyor belts, fans, and paper machines. They are common in the cement, mining, steel, and paper industries, where robustness is essential.