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Spherical roller bearing SKF 21306 CC
- Manufacturer Part Number
- 21306 CC
- Brand
- SKFOfficial brand
- Category
- Bearings
- Subcategory
- Spherical roller bearings
Other brands in this family
- FAG
- NTN
- TIMKEN
Ask us about alternatives. Equivalence is verified for each reference and application.
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Description
SKF 21306 CC is a spherical roller bearing reference, within Bearings. Request a quote for 21306 CC via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
The SKF CC series spherical roller bearing is a self-aligning bearing with two rows of rollers, designed to withstand high radial loads and angular misalignment between shaft and housing. Its design allows the shaft to flex without generating additional stresses, making it ideal for equipment with long shafts or assemblies where perfect alignment is not guaranteed. It is used in demanding industrial applications, such as conveyor belts, mills, pumps and fans. At MR Accesorios Industriales we supply this series with SKF quality, backed by more than 80 years of experience in the industry.
The CC series designation is interpreted as follows: the first digits indicate the size and dimension series, while the CC suffix indicates a stamped steel cage, roller-guided, and special machining of the inner ring. For example, the 21305 CC, 21306 CC and 21307 CC share the same basic design but vary in their main dimensions. The CC suffix does not change the load capacity, but it does influence the limiting speed and heat dissipation. Knowing this nomenclature allows you to quickly identify the bearing's characteristics and select the right one for your equipment.
These bearings are used in a wide variety of industries in Argentina, such as cement, mining, steel, food and transport. They are common in conveyor belts, ball mills, crushers, centrifugal pumps, industrial fans and paper machines. Their ability to withstand misalignment makes them suitable for equipment subject to shaft deflection or assemblies where the supports are not perfectly aligned. They are also used in applications with combined loads, although their specialty is high radial loads.
When selecting a spherical roller bearing, take into account the type of sealing: open designs require external lubrication and are suitable for clean environments, while sealed versions (with suffixes such as 2RS or 2CS) protect against dust and moisture. Internal clearance is also critical; excessive clearance can cause vibrations and insufficient clearance can cause overheating. Lubrication must be suitable for the operating speed and temperature. During mounting, ensure correct initial alignment and avoid impacts that could damage the rollers or raceways.
Regarding equivalences and interchangeability, SKF CC series spherical roller bearings can be replaced by products from other manufacturers that follow the same international designation, such as series 213, 222, 223, etc., with equivalent suffixes. However, always verify the critical dimensions and tolerances, as there may be differences in internal clearance or cage design. For a safe replacement, consult our technical team and provide the complete code of the original bearing.
If you need an SKF CC series spherical roller bearing, at MR Accesorios Industriales we advise you so you can choose the right option for your application. Send us the code on WhatsApp and we will quote you promptly. We have more than 80 years of experience distributing quality industrial products.
This description provides guidance on the product type. Check the configuration and dimensions of this reference.
Dimensions
Dimensions and tolerances: Send us the part number via WhatsApp and we'll confirm dimensions, sealing, and internal clearance against the manufacturer's data sheet.
Frequently Asked Questions
- What does the CC suffix mean on an SKF bearing?
- The CC suffix indicates that the bearing has a stamped steel cage, roller-guided, and special machining of the inner ring. This influences the limiting speed and heat dissipation, but does not change the load capacity.
- Does this bearing allow misalignment?
- Yes, spherical roller bearings allow angular misalignment between the shaft and the housing, which compensates for shaft deflection or assemblies that are not perfectly aligned. This is one of their main advantages over other types of bearings.
- How do I request a quote for an SKF CC series bearing?
- Send the complete bearing code by WhatsApp to MR Accesorios Industriales. We will reply with the quote. If you do not have the code, we can help you identify it using the shaft and housing dimensions.

