SKF 6305-2RS2/C3HHT deep groove ball bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Deep groove ball bearings
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Other brands for this category
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Decoding SKF 6305-2RS2/C3HHT
- 63Series
- Deep groove ball bearings, 63 series. Series differ in outside diameter and width even when the bore is the same.
- 05Bore
- Bore 25 mm (05 × 5).
- 2RS2/C3HHTSuffix
- SKF suffix: identifies the variant, such as seals or shields, cage, internal clearance or other features.
6305 is the standard ISO basic designation, which sets the bearing type, series and bore.
Description
SKF 6305-2RS2/C3HHT measures 25 mm across the bore and 62 mm across the outside diameter; its width is 17 mm (25 x 62 x 17 mm).
SKF 6305-2RS2/C3HHT 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 6305-2RS2/C3HHT and any equivalents.
SKF's RS/C HHT deep groove ball bearings are built to handle moderate radial and axial loads in industrial settings. The sealed design and controlled internal clearance suit contaminated and high-temperature environments. MR Industrial Accessories supplies this line.
The part number tells you what you're getting once you know the suffixes. Take 6305-2RS2/C3HHT: the digits before the dash give the size and dimension series. Then 2RS2 means double nitrile contact seals, which keep out dust and moisture. A slash separates the base code from what follows. C3 signals extra internal radial clearance compared to standard, useful when interference fits or temperature differences come into play. HHT points to a special heat treatment for high temperatures. Reading these codes correctly helps you match the bearing to the job.
These bearings show up in electric motors, centrifugal pumps, industrial fans, conveyors and process equipment. They handle moderate speeds and combined loads, so you'll find them in food, textile, chemical and water treatment plants, as well as machine tools and packaging machinery. The sealed version is the go-to choice where dust, chips or moisture are present, since it offers better protection and needs less maintenance.
When selecting, think about the seal type: double contact 2RS2 gives maximum protection but adds friction, so for high-speed applications you may want to consider other options. C3 clearance is advisable if the shaft or housing fit reduces internal clearance, or if the rings see different temperatures. Factory grease works for most cases; if you relubricate, use a grease compatible with the original. During installation, align carefully and avoid impacts that could damage the seals. Keeping the area clean goes a long way toward service life.
Sealed deep groove ball bearings from various brands are often interchangeable if dimensions and suffixes line up. Still, check tolerances and internal clearance, because they can differ between manufacturers. Seal and clearance codes aren't standardized across the board, so comparing just the base number can lead to mistakes. At MR Industrial Accessories, we can help you find the right replacement based on your equipment's specs.
If you need this bearing or want to confirm the exact designation for your application, send the code via WhatsApp. At MR Industrial Accessories, we'll get back to you with technical details and a quote. Every inquiry gets our full attention.
More SKF versions in the 6305 series
SKF lists these 6305 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 6305 ETN9
- SKF 6305 N
Dimensions
25 x 62 x 17 mm (d x D x B): boundary dimensions for basic designation 6305, according to ISO 15.
- Bore
- 25mm
- Outside diameter (D)
- 62mm
- Width (B)
- 17mm
Same size, other brands
Other brands' pages with basic designation 6305: 25 x 62 x 17 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 6305-2RS2/C3HHT bearing: what are its dimensions?
- SKF 6305-2RS2/C3HHT measures 25 mm across the bore and 62 mm across the outside diameter; its width is 17 mm (25 x 62 x 17 mm). Those are the boundary dimensions standardized in ISO 15 for basic designation 6305.
- What does the 2RS2 suffix mean on an SKF bearing?
- 2RS2 indicates double nitrile contact seals on both sides. This creates a strong barrier against dust, moisture and other contaminants, making it suitable for tough environments. It does add a bit of friction, so for very high-speed use, other options might be better.
- When should I choose a bearing with C3 clearance?
- C3 clearance is a good fit when interference fits on the shaft or housing reduce internal clearance, or when the rings experience thermal gradients during operation. It also helps compensate for expansion. Always check your assembly conditions and ask if unsure.
- How can I tell if a bearing from another brand is equivalent?
- Compare the main dimensions (bore, outer diameter and width), seal type and internal clearance. Suffix codes can vary by manufacturer, so the base number alone isn't enough. At MR we help you identify the correct replacement.