SKF 3312 ANR 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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How to read SKF 3312 ANR
- 33Series
- Double row angular contact ball bearings, 33 series. For the same bore, each series has a different outside diameter and width.
- 12Bore
- 60 mm bore: 12 × 5.
- ANRSuffix
- SKF suffix: it defines the variant (sealing, cage, internal clearance or other features).
3312 is the standard (ISO) basic designation: it defines the type, the series and the bore.
Description
The SKF 3312 ANR bearing has a 60 mm bore, a 130 mm outside diameter and a 54 mm width (60 x 130 x 54 mm).
SKF 3312 ANR is a reference of double row angular contact ball bearing, within Bearings. Request a quote for 3312 ANR via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
SKF double row angular contact bearings with the ANR suffix are components designed to support combined radial and axial loads in both directions. Their two-row ball construction allows a more compact mounting than two paired single row bearings. They are used in applications requiring high rigidity and precision, such as machine tools, pumps and gearboxes. MR Accesorios Industriales sells this line as part of its SKF bearing offering.
The designation of these bearings follows the SKF system: the basic number indicates the dimension series, and the suffix ANR identifies a variant with specific sealing or internal clearance characteristics. For example, 3305 ANR corresponds to a double row bearing of the 33 series, with a particular design that makes it suitable for certain operating conditions. It is essential to verify the complete code at the time of selection, since the suffix determines construction details that affect performance.
These bearings find application in industries such as metalworking, food and beverage, and general machinery manufacturing. In Argentina, they are commonly found in machine tool spindles, centrifugal pumps, compressors and speed reducers. Their ability to support loads in both directions makes them ideal for shafts that must maintain a precise axial position under different load conditions.
To correctly select a double row angular contact bearing, take into account the radial and axial load it will support, the rotational speed and the environmental conditions. Mounting requires careful alignment and, in many cases, preload adjustment to ensure the rigidity of the assembly. Proper lubrication, whether grease or oil, is essential to extend service life. Follow the manufacturer's recommendations for mounting and lubrication.
Regarding equivalences, SKF double row bearings with the ANR suffix can be interchanged with products from other brands that follow the same dimensional designation, but it is important to verify tolerances and internal clearance, as they can vary between manufacturers. Do not assume that a similar code from another brand has the same characteristics; always consult the technical specifications before replacing a bearing.
If you need a quote for an SKF double row angular contact bearing with the ANR suffix, send us the complete code via WhatsApp to MR Accesorios Industriales. Our technical team will help you identify the correct option for your application and resolve any questions about mounting or interchangeability.
Dimensions
Boundary dimensions of the basic designation 3312 per ISO 15: 60 x 130 x 54 mm (d x D x B).
- Bore
- 60mm
- Outside diameter (D)
- 130mm
- Width (B)
- 54mm
Frequently Asked Questions
- What are the dimensions of the SKF 3312 ANR bearing?
- The SKF 3312 ANR bearing has a 60 mm bore, a 130 mm outside diameter and a 54 mm width (60 x 130 x 54 mm). These are the standardised boundary dimensions (ISO 15) of the basic designation 3312.
- What does the ANR suffix mean in an SKF bearing?
- The ANR suffix indicates a specific variant within the SKF designation, generally associated with sealing, internal clearance or cage design characteristics. To know exactly what it means in your bearing, consult the manufacturer's data sheet or contact us.
- Can I replace a double row bearing with two single row ones?
- In some cases it is possible, but not always advisable. Double row bearings take up less axial space and offer greater rigidity. If you consider a replacement, evaluate the loads, speed and available space, and consult a specialist.
- How should I lubricate a double row angular contact bearing?
- Lubrication depends on the application: grease for moderate speeds and oil for high speeds or elevated temperatures. It is crucial to follow the manufacturer's instructions regarding quantity and type of lubricant, and to maintain cleanliness during mounting.