SKF 6209/C3S1 deep groove ball bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Deep groove ball bearings
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Decoding SKF 6209/C3S1
- 62Series
- Deep groove ball bearings, 62 series. Series differ in outside diameter and width even when the bore is the same.
- 09Bore
- Bore 45 mm (09 × 5).
- C3S1Suffix
- SKF suffix: identifies the variant, such as seals or shields, cage, internal clearance or other features.
6209 is the standard ISO basic designation, which sets the bearing type, series and bore.
Description
SKF 6209/C3S1 measures 45 mm across the bore and 85 mm across the outside diameter; its width is 19 mm (45 x 85 x 19 mm).
SKF 6209/C3S1 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 6209/C3S1 and any equivalents.
SKF deep groove ball bearings are key components for handling radial and axial loads in industrial equipment. Their single-row ball design with deep raceways supports high speeds and smooth running. MR Industrial Accessories supplies this line with various internal clearance and heat treatment options to suit different operating conditions.
The SKF part numbering system helps you decode each bearing. The basic number identifies the type and dimension series. For instance, 6207 is a deep groove ball bearing from the 62 series with a 35 mm bore. Suffixes add critical details: C3 means radial internal clearance greater than normal, useful for tight fits or temperature differences; S1 indicates a special heat treatment for elevated operating temperatures. C4 specifies even greater clearance, while S0 denotes standard heat treatment. So, 6207/C3S1 combines C3 clearance with S1 treatment, and 6314/C4S0 has C4 clearance and standard treatment.
These bearings appear in many industrial settings: electric motors, centrifugal pumps, fans, conveyor belts, gearboxes, and machine tools. Their capacity to support moderate radial and axial loads makes them adaptable. In food, chemical, and petrochemical industries, where temperature and speed demands are high, variants with C3 or C4 clearance and specific heat treatments deliver dependable operation.
Proper selection depends on load, speed, operating temperature, and fit type. Increased internal clearance (C3, C4) offsets clearance reduction from interference fits or thermal expansion. S1 or S0 treatment affects dimensional stability at high temperatures. During installation, ensure accurate alignment and sufficient lubrication; sealing choice depends on the environment. Follow the manufacturer's guidelines to prevent premature failure.
For equivalents, SKF deep groove ball bearings can be interchanged with other brands that share the same dimensional designation and clearance and treatment specifications. Always check tolerances and load capacities, as they may differ between manufacturers. When replacing, compare not only the basic number but also the suffixes, which define critical operating characteristics.
If you need help identifying the right bearing for your equipment, MR Industrial Accessories provides guidance. Send the complete part number via WhatsApp or email, and our team will respond promptly with a quote and can suggest equivalents or assist with selection.
Dimensions
45 x 85 x 19 mm (d x D x B): boundary dimensions for basic designation 6209, according to ISO 15.
- Bore
- 45mm
- Outside diameter (D)
- 85mm
- Width (B)
- 19mm
Same size, other brands
Other brands' pages with basic designation 6209: 45 x 85 x 19 mm (d x D x B) per ISO 15.
- FAG6209-C6209-C-2Z6209-C-2HRS
- KOYO6209
- NSK62096209 ZZ
- NTN62096209ZZ6209LLB4 more →
- RKB6209
- TIMKEN62096209M
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 6209/C3S1 bearing: what are its dimensions?
- SKF 6209/C3S1 measures 45 mm across the bore and 85 mm across the outside diameter; its width is 19 mm (45 x 85 x 19 mm). Those are the boundary dimensions standardized in ISO 15 for basic designation 6209.
- What does the C3 suffix mean on an SKF bearing?
- C3 indicates radial internal clearance greater than normal. It is used when the mounting fit is tight or when thermal differences between inner and outer rings exist, to prevent the bearing from losing clearance and failing early.
- What is the difference between S0 and S1 treatments?
- S0 is the standard heat treatment for normal operating temperatures. S1 is a special treatment that provides greater dimensional stability at high temperatures, helping the bearing maintain its properties in more demanding applications.
- Can I replace an SKF bearing with another brand?
- Yes, as long as the dimensional designation and suffixes match. Verify that tolerances and load capacities are equivalent. To be sure, consult our specialists by sending the part number via WhatsApp or email.