SKF 6409/C4 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 6409/C4
- 64Series
- Deep groove ball bearings, 64 series. Series differ in outside diameter and width even when the bore is the same.
- 09Bore
- Bore 45 mm (09 × 5).
- C4Suffix
- SKF suffix: identifies the variant, such as seals or shields, cage, internal clearance or other features.
6409 is the standard ISO basic designation, which sets the bearing type, series and bore.
Description
SKF 6409/C4 measures 45 mm across the bore and 120 mm across the outside diameter; its width is 29 mm (45 x 120 x 29 mm).
SKF 6409/C4 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 6409/C4 and any equivalents.
SKF 60 Series deep groove ball bearings handle moderate radial and axial loads in both directions and are built for high-speed operation. Their thin cross-section lets them fit into assemblies where radial space is tight. Typical equipment includes electric motors, pumps, fans and light-duty transmissions. MR Industrial Accessories LLC supplies this line and can help you pick the right internal clearance for the job.
Reading the designation is the first step in getting the correct bearing. The basic number tells you the size and series, and each series has its own section height. Suffixes carry the extra detail: /C2 means internal clearance below normal, while /C3 means clearance above normal. A 6005/C2 and a 6005/C3 are the same size but differ in clearance, so the suffix matters when you match a bearing to its application.
You will find these bearings in many types of industrial equipment. They are common in low- and medium-power electric motors, centrifugal pumps, fans, small compressors, machine tools and transmission units. Automotive uses include alternators and tensioners. Their versatile design suits the food, textile, chemical and general manufacturing sectors, especially where radial space is limited and quiet, smooth running is needed.
Selection depends on load, speed and operating environment. Choose C2 clearance when you need a more precise fit and running temperatures stay low. Choose C3 when temperatures are high or when an interference fit will reduce clearance during operation. Sealing options include open, shielded or sealed, depending on contamination levels. Lubrication may be grease or oil. During mounting, keep the bearing aligned and avoid impacts that could damage the raceways.
Equivalent bearings from other manufacturers use similar designations, and C2 or C3 deep groove ball bearings follow an international standard, so interchangeability is common. Tolerances and quality can vary between suppliers, so it is worth confirming that the bearing meets the applicable standards. If you are replacing a bearing, compare the dimensions and the internal clearance before you order.
Send the code of your bearing by WhatsApp or email to MR Industrial Accessories LLC and we will prepare a quote. If you are unsure whether C2 or C3 is right for your equipment, or if you need a special sealing variant, our team can point you to the correct option and suggest equivalents. We serve customers throughout the United States and in several Latin American countries.
More SKF versions in the 6409 series
SKF lists these 6409 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 6409 N
Dimensions
45 x 120 x 29 mm (d x D x B): boundary dimensions for basic designation 6409, according to ISO 15.
- Bore
- 45mm
- Outside diameter (D)
- 120mm
- Width (B)
- 29mm
Same size, other brands
Other brands' pages with basic designation 6409: 45 x 120 x 29 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 6409/C4 bearing: what are its dimensions?
- SKF 6409/C4 measures 45 mm across the bore and 120 mm across the outside diameter; its width is 29 mm (45 x 120 x 29 mm). Those are the boundary dimensions standardized in ISO 15 for basic designation 6409.
- What does the C3 suffix mean on an SKF bearing?
- C3 indicates radial internal clearance above normal. It suits applications with high operating temperatures or interference fits, where clearance is reduced during mounting, helping to prevent a preloaded condition.
- What is the difference between a 6005/C2 bearing and a 6005/C3?
- Both have the same dimensions, but 6005/C2 has internal clearance below normal and 6005/C3 has clearance above normal. The choice depends on operating conditions: C2 for precise fits and low temperatures, C3 for high temperatures or interference fits.
- How do I know if I can replace a bearing from another brand with an SKF one?
- If the other bearing shares the same basic designation and suffixes, such as 6000/C3, it is interchangeable. Still, verify dimensions and tolerances. MR Industrial Accessories LLC can advise you so the replacement is safe and reliable.