SKF 3308 DTN9 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 3308 DTN9
- 33Series
- Double row angular contact ball bearings, 33 series. For the same bore, each series has a different outside diameter and width.
- 08Bore
- 40 mm bore: 08 × 5.
- DTN9Suffix
- SKF suffix: it defines the variant (sealing, cage, internal clearance or other features).
3308 is the standard (ISO) basic designation: it defines the type, the series and the bore.
Description
The SKF 3308 DTN9 bearing has a 40 mm bore, a 90 mm outside diameter and a 36.5 mm width (40 x 90 x 36.5 mm).
SKF 3308 DTN9 is a reference of double row angular contact ball bearing, within Bearings. Request a quote for 3308 DTN9 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 support radial and axial loads in both directions. Its construction with two rows of balls and inclined raceways allows it to handle combined forces with high rigidity. It is used in applications requiring precision and load capacity, such as machine tool spindles, pumps and gearboxes. At MR Accesorios Industriales we sell it as part of our SKF bearing line.
The designation of these bearings follows a scheme that combines numbers and suffixes. For example, in 3308 DTN9, the first two digits indicate the bearing type (double row angular contact ball bearing), the third the dimension series and the last two the bore diameter. The suffix DTN9 indicates variations in cage design, internal clearance or sealing. Knowing these codes allows you to quickly identify the product's characteristics and look for equivalents.
These bearings are used in industries such as metalworking, food and chemical, in equipment such as centrifugal pumps, compressors, milling and grinding machine spindles, and speed reducers. In Argentina, they are common in heavy machinery maintenance and in production lines requiring high precision and reliability. Their ability to support axial loads in both directions makes them ideal for applications with reversing rotation.
To correctly select a double row angular contact bearing, take into account the radial and axial load it must support, the operating speed and the environmental conditions. Mounting requires precise alignment between the shaft and the housing, since these bearings are sensitive to misalignment. Proper lubrication, whether grease or oil, and effective sealing against contaminants extend their service life. Follow the manufacturer's recommendations for internal clearance and tightening.
Regarding equivalents, double row angular contact bearings are manufactured under international standards that allow interchangeability between brands. However, designations may vary by manufacturer, so it is essential to verify dimensions and tolerances before replacing a bearing.
If you need a quote for an SKF double row angular contact bearing or any other component, send us the code via WhatsApp at MR Accesorios Industriales. Our technical team advises you to find the right part for your application.
Dimensions
Boundary dimensions of the basic designation 3308 per ISO 15: 40 x 90 x 36.5 mm (d x D x B).
- Bore
- 40mm
- Outside diameter (D)
- 90mm
- Width (B)
- 36.5mm
Frequently Asked Questions
- What are the dimensions of the SKF 3308 DTN9 bearing?
- The SKF 3308 DTN9 bearing has a 40 mm bore, a 90 mm outside diameter and a 36.5 mm width (40 x 90 x 36.5 mm). These are the standardised boundary dimensions (ISO 15) of the basic designation 3308.
- What does the DTN9 suffix mean in an SKF bearing?
- The DTN9 suffix indicates specific design variations, such as cage type, internal clearance or sealing. To interpret it correctly, consult the manufacturer's catalogue or contact us with the full code.
- Does this bearing support axial loads in both directions?
- Yes, double row angular contact bearings are designed to support axial loads in both directions, in addition to radial loads. This makes them suitable for applications with reversing rotation.
- How is a double row angular contact bearing mounted?
- Mounting requires precise alignment and cleanliness. It is recommended to follow the manufacturer's instructions for internal clearance and tightening. Proper lubrication and effective sealing are key to its performance.