
SKF 6204 TN9/C4HLHT23 deep groove ball bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Deep groove ball bearings
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Decoding SKF 6204 TN9/C4HLHT23
- 62Series
- Deep groove ball bearings, 62 series. Series differ in outside diameter and width even when the bore is the same.
- 04Bore
- Bore 20 mm (04 × 5).
- TN9/C4HLHT23Suffix
- SKF suffix: identifies the variant, such as seals or shields, cage, internal clearance or other features.
6204 is the standard ISO basic designation, which sets the bearing type, series and bore.
Description
SKF 6204 TN9/C4HLHT23 measures 20 mm across the bore and 47 mm across the outside diameter; its width is 14 mm (20 x 47 x 14 mm).
SKF 6204 TN9/C4HLHT23 belongs to deep groove 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 6204 TN9/C4HLHT23 and any equivalents.
The SKF TN9/C4HLHT deep groove ball bearing is a single-row design with a polyamide cage and C4 internal clearance, built for high-temperature operation. It suits assemblies where thermal expansion occurs and greater-than-standard clearance is needed, such as electric motors, industrial fans, and continuous process equipment. MR Industrial Accessories supplies this line across the United States and in several Latin American countries.
The series designation uses suffixes to convey construction details. TN9 denotes a glass-fiber reinforced polyamide cage for elevated temperatures. C4 specifies internal clearance greater than normal, intended for tight fits or significant thermal gradients. HLHT identifies a high-temperature lubricant and special heat treatment. For example, in 6204 TN9/C4HLHT23, the final digits indicate the lubricant variant. Reading these suffixes correctly is essential, rather than relying only on the base series number.
These bearings are found in industries where operating temperatures continuously exceed 100 °C. Typical uses include large electric motors, induced draft fans, ovens, dryers, and process equipment in chemical or food plants. They also appear in cement, steel, and waste treatment operations. Their ability to accommodate expansion without losing precision makes them suitable for assemblies where shaft and housing run at different temperatures.
When selecting, pay attention to internal clearance: C4 is looser than CN and helps prevent seizing as the shaft expands. Do not use the TN9 cage above the specified limit for polyamide. The HLHT lubricant is formulated for high temperature and must not be mixed with other greases. During mounting, check alignment and avoid impacts that could damage the cage. If the bearing operates near heat sources, consider cooling the housing.
For equivalents, deep groove ball bearings with similar suffixes from other brands may interchange if dimensions and internal clearance match. However, nomenclature for polyamide cages and heat treatments varies between manufacturers. When seeking a replacement, compare not only bore and width but also clearance and cage type. MR Industrial Accessories can advise on interchangeability based on the exact code.
To request this bearing or confirm the right variant for your equipment, send the complete code via WhatsApp or email. The team replies promptly with a quote and helps identify the correct replacement, also suggesting equivalents when needed.
More SKF versions in the 6204 series
SKF lists these 6204 series versions in its catalogs, but they don't have a page on this site. Send us the part number of any of them and we'll find it and quote it.
- SKF 6204 N
Dimensions
20 x 47 x 14 mm (d x D x B): boundary dimensions for basic designation 6204, according to ISO 15.
- Bore
- 20mm
- Outside diameter (D)
- 47mm
- Width (B)
- 14mm
Same size, other brands
Other brands' pages with basic designation 6204: 20 x 47 x 14 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 6204 TN9/C4HLHT23 bearing: what are its dimensions?
- SKF 6204 TN9/C4HLHT23 measures 20 mm across the bore and 47 mm across the outside diameter; its width is 14 mm (20 x 47 x 14 mm). Those are the boundary dimensions standardized in ISO 15 for basic designation 6204.
- What does the C4 suffix mean on this bearing?
- C4 indicates internal clearance greater than normal. It is used when the bearing operates with tight fits or high temperatures, compensating for shaft expansion and preventing the balls from losing clearance.
- Does the TN9 cage withstand high temperatures?
- The TN9 cage is made of reinforced polyamide, suitable for moderate temperatures. For extreme heat, verify the maximum permitted temperature, as another cage material may be required.
- Can I replace this bearing with one from another brand?
- Yes, if dimensions, internal clearance, and cage type match. Not all manufacturers use the same nomenclature, so compare technical specifications rather than just the series number.

