SKF 3211 A double row angular contact ball bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Double row angular contact ball bearings
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Since 1945 · Martínez, Buenos Aires, Argentina
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Ask us about alternatives. Equivalence is verified for each reference and application.
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How to read SKF 3211 A
- 32Series
- Double row angular contact ball bearings, 32 series. For the same bore, each series has a different outside diameter and width.
- 11Bore
- 55 mm bore: 11 × 5.
- ASuffix
- SKF suffix: it defines the variant (sealing, cage, internal clearance or other features).
3211 is the standard (ISO) basic designation: it defines the type, the series and the bore.
Description
The SKF 3211 A bearing has a 55 mm bore, a 100 mm outside diameter and a 33.3 mm width (55 x 100 x 33.3 mm).
SKF 3211 A is a reference of double row angular contact ball bearing, within Bearings. Request a quote for 3211 A via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
The SKF double row angular contact bearing is a component designed to carry radial and axial loads in both directions. Its construction with two rows of balls and inclined raceways allows it to handle tilting moments, so it is used in applications requiring high rigidity and precision. It is a compact solution that simplifies mounting by integrating two bearings into one.
The designation of this series is read simply: the base number identifies the size and load capacity, while the suffix A indicates an internal design variant, generally associated with a specific contact angle or cage. For example, the codes in the series correspond to double row bearings with that suffix. Knowing these codes allows you to order the exact replacement part.
These bearings are used in industries such as metallurgy, food, textile and machine tools. They are common in milling machine spindles, gearboxes, pumps, compressors and transmission equipment where combined loads and moments must be withstood. In Argentina, they are commonly found in production lines that require high precision and reliability, such as those in the automotive and packaging sectors.
To select the right bearing, take into account the magnitude and direction of the loads, the rotation speed and the environmental conditions. Sealing is key: if there is dust or moisture, choose variants with seals or shields. Lubrication must be suitable for the working temperature, and mounting requires precise alignment and correct adjustment of axial clearance, since forced mounting can damage the raceways.
As for equivalents, double row angular contact bearings from different brands can be interchanged if dimensions and tolerances match, but always verify the code and technical specifications. SKF is a brand MR sells, which guarantees access to genuine products with backing. Not all brands use the same suffixes, so always check the complete designation.
If you need to replace a bearing from this series, send us the code on WhatsApp at MR Accesorios Industriales. We advise you so that you find the right part and avoid unnecessary downtime. Request a quote with no obligation and ensure your equipment runs with quality components.
Dimensions
Boundary dimensions of the basic designation 3211 per ISO 15: 55 x 100 x 33.3 mm (d x D x B).
- Bore
- 55mm
- Outside diameter (D)
- 100mm
- Width (B)
- 33.3mm
Frequently Asked Questions
- What are the dimensions of the SKF 3211 A bearing?
- The SKF 3211 A bearing has a 55 mm bore, a 100 mm outside diameter and a 33.3 mm width (55 x 100 x 33.3 mm). These are the standardised boundary dimensions (ISO 15) of the basic designation 3211.
- What does the suffix A mean in bearings 3204 A, 3205 A, etc.?
- The suffix A indicates an internal design variant within the series. It may refer to a specific contact angle or a particular cage material. To know exactly what it means in your application, check the complete designation and the technical specifications.
- How do I choose between a double row bearing and two single row bearings?
- The double row bearing takes up less axial space and simplifies mounting by integrating two bearings into one. If you need to carry axial loads in both directions and moments, this option is more compact. Also evaluate the required rigidity and precision.
- What should I take into account when mounting an angular contact bearing?
- It is essential to correctly align the shaft and the housing, adjust the axial clearance according to specification and lubricate properly. Forced or misaligned mounting can cause noise, overheating and premature failures. Follow the manufacturer's recommendations.