SKF 2304 TN self-aligning ball bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Self-aligning ball bearings
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Other brands for this category
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Decoding SKF 2304 TN
- 23Series
- Self-aligning ball bearings, 23 series. Series differ in outside diameter and width even when the bore is the same.
- 04Bore
- Bore 20 mm (04 × 5).
- TNSuffix
- SKF suffix: identifies the variant, such as seals or shields, cage, internal clearance or other features.
2304 is the standard ISO basic designation, which sets the bearing type, series and bore.
Description
SKF 2304 TN measures 20 mm across the bore and 52 mm across the outside diameter; its width is 21 mm (20 x 52 x 21 mm).
SKF 2304 TN belongs to self-aligning 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 2304 TN and any equivalents.
The SKF 2304 TN is a double-row ball bearing with a spherical raceway in the outer ring. It handles small misalignments between shaft and housing, making it suitable for assemblies where deflection occurs or the seat is not perfectly rigid.
The code breaks down into two parts: the first two digits denote the series, the next two the bore size. The suffix TN identifies the execution. When ordering a different size from the same family, always provide the full designation as it appears on the drawing or nameplate.
Typical uses include conveyors, screens, mixers, fans, food machinery and process equipment where the shaft deflects or alignment is imperfect. They also appear in agricultural implements, pumps and low-demand gearboxes, especially where the housing is not rigid and the bearing must follow shaft movement.
Selection depends on shaft and housing diameters and tolerances, load type and operating conditions. Lubrication, sealing and initial alignment are critical: confirm the housing permits self-aligning movement and that the shaft is not forced. In vibrating or dirty environments, inspect the assembly and housing condition regularly.
Self-aligning bearings interchange by series number and bore size across brands. The same code may carry different final letters depending on the manufacturer, and those letters change the execution. If you have a code from another brand or an unidentified part, we can indicate the compatible equivalent and quote the replacement.
For the 2304 TN or any other size in this family, send the code via WhatsApp. With the exact code or size, we will quote it promptly.
Dimensions
20 x 52 x 21 mm (d x D x B): boundary dimensions for basic designation 2304, according to ISO 15.
- Bore
- 20mm
- Outside diameter (D)
- 52mm
- Width (B)
- 21mm
Same size, other brands
Other brands' pages with basic designation 2304: 20 x 52 x 21 mm (d x D x B) per ISO 15.
What they share are the ISO 15 boundary dimensions, not the specs: seals or shields, internal clearance, cage and load rating may vary with brand and suffix. Every quote is by full part number.
Frequently asked questions
- SKF 2304 TN bearing: what are its dimensions?
- SKF 2304 TN measures 20 mm across the bore and 52 mm across the outside diameter; its width is 21 mm (20 x 52 x 21 mm). Those are the boundary dimensions standardized in ISO 15 for basic designation 2304.
- Where is the 2304 TN self-aligning ball bearing used?
- It suits equipment where the shaft can deflect or the housing is not perfectly aligned: conveyors, screens, mixers, fans and process machinery. Also agricultural implements and pumps. Self-alignment compensates for small assembly deviations.
- How do I request a different size of the 2304 series?
- Send the complete code from the equipment or drawing via WhatsApp, for example 2304 TN, and we will quote it. If you have the shaft size and load type, that also helps us guide you on the equivalent designation.
- What should I check before mounting a self-aligning ball bearing?
- Check shaft and housing diameters and tolerances, lubrication and housing condition. Ensure the housing allows self-alignment and the shaft is not forced. If vibration or dirt is present, verify the sealing of the assembly.