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Large-diameter steel spherical roller bearing with tapered bore · SKF 239/1180 CAKF/W33
SKF 239/1180 CAKF/W33 spherical roller bearing

SKFBrand we market

SKF 239/1180 CAKF/W33 spherical roller bearing

Manufacturer Part Number239/1180 CAKF/W33Dimensions: 1180 x 1540 x 272 mm (d x D x B)239/1180 bearing: all versions and brands →Also searched as: 239/1180CAKF/W33 · 239/1180-CAKF/W33SKF 239 series: dimension table →
Brand
SKF
Category
Bearings
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Since 1945 · Martínez, Buenos Aires, Argentina

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How to read SKF 239/1180 CAKF/W33

239Series
Spherical roller bearings, 239 series. For the same bore, each series has a different outside diameter and width.
/1180Bore
1180 mm bore.
CAKF/W33Suffix
SKF suffix: it defines the variant (sealing, cage, internal clearance or other features).

239/1180 is the standard (ISO) basic designation: it defines the type, the series and the bore.

Description

The SKF 239/1180 CAKF/W33 bearing has a 1180 mm bore, a 1540 mm outside diameter and a 272 mm width (1180 x 1540 x 272 mm).

SKF 239/1180 CAKF/W33 is a reference of spherical roller bearing, within Bearings. Request a quote for 239/1180 CAKF/W33 via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

The SKF spherical roller bearing is a self-aligning double-row component designed to withstand high radial loads and axial loads in both directions, even with misaligned shafts. Its self-aligning design compensates for mounting errors or shaft deflection, reducing the risk of premature failure. It is used in demanding industrial applications where robustness and durability are critical, such as mills, conveyor belts and mining equipment. At MR Accesorios Industriales we supply this line.

The designation of the CAKF/W series combines several suffixes that define key features. The letters CA indicate a machined brass window cage, inner ring guided, and a design optimized for high loads. The K indicates a tapered bore (taper 1:12), which facilitates mounting on adapter sleeves or tapered shafts. The F corresponds to a lubrication groove and three holes in the outer ring. The W followed by a number, as in the example 239/1180 CAKF/W33, identifies the presence of a groove and lubrication holes in the outer ring, with the number 33 indicating the specific type of groove. This combination allows efficient lubrication and versatile mounting.

These bearings are used in heavy industries in Argentina, such as cement, mining, steel and paper. They are common in ball mills, crushers, vibrating screens, conveyor belts, industrial fans and paper machines. Their ability to withstand combined loads and misalignment makes them ideal for equipment subjected to vibration and shock. In pulp plants and steel mills, for example, they are mounted on support rollers and rolling cylinders, where reliability is essential to maintain continuous production.

To correctly select a spherical roller bearing, take into account radial and axial load, rotation speed, lubrication and type of sealing. The CAKF/W series supports lubrication through a groove and holes in the outer ring, allowing regreasing without disassembly. The K tapered bore requires a controlled interference fit on the shaft or adapter sleeve; verify internal clearance after mounting. Initial alignment is less critical thanks to self-alignment, but it is essential to ensure adequate lubrication and avoid contaminants. For high temperatures, consider synthetic lubricants and metal cages.

Regarding equivalents, SKF spherical roller bearings can be interchanged with those of other brands that follow the same international designation, such as FAG, NSK, NTN or Timken. However, always verify tolerances, internal clearance and suffix features, as they can vary between manufacturers. SKF's CAKF/W series is known for its high quality and durability, but when replacing with another brand, make sure the code and specifications match your application requirements. Consult our technical team to validate interchangeability.

If you need this bearing or want to confirm a specific part number, send us the full part number by WhatsApp to MR Accesorios Industriales. Our technical team advises you so you choose the right option for your application. At MR Accesorios Industriales we offer reliable solutions for your industrial equipment.

Dimensions

Boundary dimensions of the basic designation 239/1180 per ISO 15: 1180 x 1540 x 272 mm (d x D x B).

Bore
1180mm
Outside diameter (D)
1540mm
Width (B)
272mm

The same size in other brands

Pages from other brands with the basic designation 239/1180: 1180 x 1540 x 272 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 239/1180 CAKF/W33 bearing?
The SKF 239/1180 CAKF/W33 bearing has a 1180 mm bore, a 1540 mm outside diameter and a 272 mm width (1180 x 1540 x 272 mm). These are the standardised boundary dimensions (ISO 15) of the basic designation 239/1180.
What does the CAKF/W33 suffix mean in an SKF bearing?
CA indicates a machined brass cage, inner ring guided; K, tapered bore 1:12; F, lubrication groove and holes in the outer ring; W33, groove and three lubrication holes. This combination facilitates 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. Internal clearance must be checked after fitting, as interference reduces clearance. It is important to follow the manufacturer's recommendations to avoid damage and ensure correct 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. In Argentina they are common in the cement, mining, steel and paper industries, where robustness is essential.
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