SKF 3308 DTN9 double row angular contact ball bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Double row angular contact ball bearings
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Decoding SKF 3308 DTN9
- 33Series
- Double row angular contact ball bearings, 33 series. Series differ in outside diameter and width even when the bore is the same.
- 08Bore
- Bore 40 mm (08 × 5).
- DTN9Suffix
- SKF suffix: identifies the variant, such as seals or shields, cage, internal clearance or other features.
3308 is the standard ISO basic designation, which sets the bearing type, series and bore.
Description
SKF 3308 DTN9 measures 40 mm across the bore and 90 mm across the outside diameter; its width is 36.5 mm (40 x 90 x 36.5 mm).
SKF 3308 DTN9 belongs to double row angular contact ball bearing, part of our Bearings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for 3308 DTN9 and any equivalents.
For equipment that must manage combined radial and axial forces in both directions, the SKF double row angular contact bearing is a common choice. Its two rows of balls run on inclined raceways, giving the bearing high rigidity. Typical installations include machine tool spindles, pumps and gearboxes. MR Industrial Accessories LLC supplies this bearing as part of its SKF line.
Reading the part number helps you confirm what you are ordering. Take 3308 DTN9: the first two digits identify the bearing type as a double row angular contact ball bearing, the third digit gives the dimension series, and the final two digits indicate the bore diameter. The DTN9 suffix covers design details such as cage variation, internal clearance or sealing. Understanding these elements makes it easier to compare options and find equivalents.
These bearings appear in metalworking, food processing and chemical plants. You will find them in centrifugal pumps, compressors, milling and grinding spindles, and speed reducers. Because they accept axial loads in both directions, they suit applications where rotation reverses. Maintenance teams value them for production lines that demand precision and reliability.
Selection depends on the radial and axial loads the bearing will see, the operating speed and the environment. Mounting calls for accurate alignment between shaft and housing, as these bearings do not tolerate misalignment well. Grease or oil lubrication must be appropriate, and sealing should keep contaminants out to support service life. Follow the manufacturer's guidance on internal clearance and tightening.
Double row angular contact bearings are made to international standards, so brands can often be interchanged. Designations differ from one manufacturer to another, though. Before replacing a bearing, verify its dimensions and tolerances against the original.
To request a quote for an SKF double row angular contact bearing or another component, send the part number by WhatsApp or email to MR Industrial Accessories LLC. Our team responds promptly and can suggest equivalents or help you choose.
Dimensions
40 x 90 x 36.5 mm (d x D x B): boundary dimensions for basic designation 3308, according to ISO 15.
- Bore
- 40mm
- Outside diameter (D)
- 90mm
- Width (B)
- 36.5mm
Frequently asked questions
- SKF 3308 DTN9 bearing: what are its dimensions?
- SKF 3308 DTN9 measures 40 mm across the bore and 90 mm across the outside diameter; its width is 36.5 mm (40 x 90 x 36.5 mm). Those are the boundary dimensions standardized in ISO 15 for basic designation 3308.
- What does the DTN9 suffix mean on an SKF bearing?
- DTN9 indicates design variations such as cage type, internal clearance or sealing. For an exact interpretation, check the manufacturer's catalogue or share the full code with us.
- Can this bearing take axial loads in both directions?
- Yes. Double row angular contact bearings are built to carry axial loads in both directions as well as radial loads, which makes them suitable for reversing rotation.
- What should I keep in mind when mounting a double row angular contact bearing?
- Alignment and cleanliness matter. Follow the manufacturer's instructions for internal clearance and tightening, and use the correct lubrication and sealing to protect performance.