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Deep groove ball bearing SKF 6211-ZNR/C3
- Manufacturer Part Number
- 6211-ZNR/C3
- Brand
- SKFOfficial brand
- Category
- Bearings
- Subcategory
- Deep groove ball 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 6211-ZNR/C3 is a deep groove ball bearing reference, within Bearings. Request a quote for 6211-ZNR/C3 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
The SKF deep groove ball bearings of the -ZNR/C series are components designed to withstand radial and axial loads in both directions. They incorporate a retaining ring and a shield that simplify assembly and protect against contaminants. They are used in a wide variety of industrial applications where reliability and low maintenance are required.
The designation of these bearings is interpreted as follows: the numeric prefix indicates the size and series (for example, 6211 or 6306). The suffix -Z indicates that the bearing has a shield on one side, which offers protection against dust and dirt. The N indicates that it incorporates a groove in the outer ring for the retaining ring, and the R that it is supplied with said snap ring. The suffix /C3 specifies a radial internal clearance greater than standard, suitable for applications with elevated temperatures or interference fits.
These bearings are used in industries such as food, chemical, mining and manufacturing in general. They are common in electric motors, pumps, fans, conveyors and transmission machinery. Thanks to their design with a retaining ring, they facilitate axial mounting in housings without the need for additional covers, which reduces costs and assembly times. Their shield makes them suitable for environments with a moderate presence of particles.
To correctly select a -ZNR/C3 bearing, take into account the radial and axial load it must withstand, the rotation speed and the environmental conditions. The C3 clearance is recommended when thermal expansions are expected or when the fit on the shaft and housing generates a reduction in internal clearance. During assembly, ensure proper alignment between shaft and housing, and avoid striking the retaining ring. Lubrication must be adequate for the operating temperature and speed; in many cases, these bearings come pre-lubricated from the factory.
Regarding equivalences and interchangeability, deep groove ball bearings with similar suffixes from other manufacturers may be compatible, but it is essential to verify the critical dimensions and internal clearance. Not all suffixes match between brands, so it is always advisable to compare technical specifications. At MR Accesorios Industriales we sell SKF as an official brand and can advise you to find the appropriate replacement.
If you need a quote for an SKF -ZNR/C3 bearing, send us the complete code via WhatsApp. At MR Accesorios Industriales we help you identify the correct option for your application and provide the technical support you need.
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 -ZNR suffix mean in an SKF bearing?
- The -ZNR suffix indicates that the bearing has a shield (Z), a groove for a retaining ring in the outer ring (N) and is supplied with the retaining ring (R). This facilitates axial mounting and protects against contaminants.
- When is it advisable to use a bearing with C3 clearance?
- C3 clearance is recommended when the bearing will operate at elevated temperatures, with interference fits that reduce internal clearance, or in applications where greater tolerance to thermal expansion is required. It helps prevent overloads and premature failures.
- Are SKF -ZNR/C3 bearings interchangeable with other brands?
- They may be interchangeable with bearings from other brands that have equivalent specifications, but it is essential to verify dimensions, internal clearance and closure type. Not all suffixes match between manufacturers, so it is recommended to consult a specialist.

