SKF 6211 NR/C3 deep groove ball bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Deep groove ball bearings
We respond promptly.
Since 1945 · Martínez, Buenos Aires, Argentina
Request your quote via WhatsApp or email, with the quantity you need.
Other brands in this category
Ask us about alternatives. Equivalence is verified for each reference and application.
Can't find the exact model? Write to us with the part number or model you're looking for: we'll find it and quote it, even if it's not listed in the catalog.
How to read SKF 6211 NR/C3
- 62Series
- Deep groove ball bearings, 62 series. For the same bore, each series has a different outside diameter and width.
- 11Bore
- 55 mm bore: 11 × 5.
- NR/C3Suffix
- SKF suffix: it defines the variant (sealing, cage, internal clearance or other features).
6211 is the standard (ISO) basic designation: it defines the type, the series and the bore.
Description
The SKF 6211 NR/C3 bearing has a 55 mm bore, a 100 mm outside diameter and a 21 mm width (55 x 100 x 21 mm).
SKF 6211 NR/C3 is a reference of deep groove ball bearing, within Bearings. Request a quote for 6211 NR/C3 via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
The SKF NR/C series deep groove ball bearing is a single-row bearing with a retaining ring (NR) and C3 internal clearance. It is used in applications requiring axial location in the housing and tolerance to high temperatures. MR Accesorios Industriales supplies this line.
The designation of these bearings combines the series number with the suffixes NR and C3. For example, 6205 NR/C3 indicates a bearing of series 62, with a retaining ring and C3 internal radial clearance. Series 60 is a lighter section than 62, and 63 is heavier. The NR suffix means that the bearing includes a retaining ring, which allows it to be axially located in the housing without the need for covers or other elements. The C3 suffix indicates a greater-than-standard internal clearance, suitable for applications with high operating temperatures or interference fits.
These bearings are used in a wide variety of industrial equipment in Argentina: electric motors, centrifugal pumps, fans, gearboxes, conveyors and agricultural machinery, among others. The presence of the retaining ring simplifies the housing design, since it avoids the use of shoulders or covers for axial positioning. They are common in applications where the bearing must support moderate radial and axial loads, and where simple and reliable location is required.
To correctly select an NR/C3 bearing, take into account the radial and axial load it will support, the rotational speed and the environmental conditions. C3 clearance is recommended when temperature differences between shaft and housing are expected, or when the fit is an interference fit. Sealing will depend on contamination: the more dirt, the more advisable a bearing with seals or shields. Lubrication must be suitable for the temperature and speed; in many cases, factory grease is sufficient, but in critical applications periodic relubrication is recommended. Alignment between shaft and housing is essential to avoid additional loads.
Regarding equivalences, deep groove ball bearings with retaining ring and C3 clearance from different brands are interchangeable if the main dimensions and suffix type match. However, not all manufacturers use the same nomenclature for the retaining ring or clearance. Therefore, it is always advisable to verify the complete part number and tolerances before replacing one bearing with another from a different brand. MR Accesorios Industriales supplies SKF as a brand, and can advise you on interchangeability with other brands it also distributes.
If you need a quote for an SKF deep groove ball bearing with retaining ring and C3 clearance, send us the complete part number by WhatsApp. At MR Accesorios Industriales we help you identify the right replacement and resolve any technical question about mounting, lubrication or application.
Other SKF versions of the 6211 series
These versions of the 6211 series appear in SKF catalogues and do not have their own page on this site. Ask us about any of them with the part number: we will source it and send you a quote.
- SKF 6211 N
Dimensions
Boundary dimensions of the basic designation 6211 per ISO 15: 55 x 100 x 21 mm (d x D x B).
- Bore
- 55mm
- Outside diameter (D)
- 100mm
- Width (B)
- 21mm
The same size in other brands
Pages from other brands with the basic designation 6211: 55 x 100 x 21 mm (d x D x B) per ISO 15.
- FAG6211-C6211-C-2Z6211-C-2HRS
- KOYO6211
- NSK62116211 ZZ
- NTN62116211ZZ6211LLB1 more →
- RKB6211
- TIMKEN62116211MB
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 6211 NR/C3 bearing?
- The SKF 6211 NR/C3 bearing has a 55 mm bore, a 100 mm outside diameter and a 21 mm width (55 x 100 x 21 mm). These are the standardised boundary dimensions (ISO 15) of the basic designation 6211.
- What does the NR suffix mean in an SKF bearing?
- NR indicates that the bearing includes a retaining ring (also called snap ring) on the outer ring. This ring allows the bearing to be axially located in the housing, simplifying the design and avoiding the use of covers or shoulders.
- When is it better to use a bearing with C3 clearance?
- C3 clearance is recommended when the bearing will operate at high temperatures, since thermal expansion reduces internal clearance. Also when the fit on the shaft or housing is an interference fit, or when greater tolerance to slight misalignment is required.
- Can I replace an SKF NR/C3 bearing with one from another brand?
- Yes, as long as the main dimensions (bore, outer diameter and width) and the suffix type match. However, verify the complete part number and tolerances, because each manufacturer may use different nomenclatures for the retaining ring or internal clearance.