SKF 3306 E/C3 double row angular contact ball bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Double row angular contact ball bearings
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Decoding SKF 3306 E/C3
- 33Series
- Double row angular contact ball bearings, 33 series. Series differ in outside diameter and width even when the bore is the same.
- 06Bore
- Bore 30 mm (06 × 5).
- E/C3Suffix
- SKF suffix: identifies the variant, such as seals or shields, cage, internal clearance or other features.
3306 is the standard ISO basic designation, which sets the bearing type, series and bore.
Description
SKF 3306 E/C3 measures 30 mm across the bore and 72 mm across the outside diameter; its width is 30.2 mm (30 x 72 x 30.2 mm).
SKF 3306 E/C3 belongs to double row angular contact 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 3306 E/C3 and any equivalents.
SKF double row angular contact bearings handle radial and axial loads in both directions within a compact footprint. The two-row ball design provides higher load capacity than a single-row bearing of the same size, making it a practical choice when axial space is limited and rigidity matters. MR Industrial Accessories supplies this line and can help you confirm the right part number.
The part number tells you most of what you need. In 3208 E/C3, the 3208 is the basic size and series, E denotes a higher-capacity ball execution, and C3 is an internal radial clearance above standard. The same logic applies to 3306 E/C3 and 3316 E/C3. Reading those suffixes correctly is the difference between a drop-in replacement and a return.
These bearings show up in centrifugal pumps, fans, small compressors, machine tools and conveyors across food, chemical and metallurgical plants. The double row suits shafts that see combined loads regularly, and the design keeps maintenance needs low in packaging lines, mills and transmission systems.
Selection comes down to radial and axial load, speed and the operating environment. C3 clearance helps when fits are tight or thermal gradients exist, since it guards against excessive preload. At assembly, check alignment between housing and shaft, and review sealing: dusty or damp conditions may call for sealed variants. Use the lubrication specified for the application.
Designations vary between manufacturers. An SKF number like 3208 E/C3 may have equivalents elsewhere, but suffixes and internal clearance do not always line up. Verify critical dimensions and operating conditions before substituting. MR Industrial Accessories can suggest equivalents and help you choose without compromising performance.
For a quote on an SKF double row angular contact bearing, send the complete part number by WhatsApp or email. The team replies promptly and can assist with selection.
Dimensions
30 x 72 x 30.2 mm (d x D x B): boundary dimensions for basic designation 3306, according to ISO 15.
- Bore
- 30mm
- Outside diameter (D)
- 72mm
- Width (B)
- 30.2mm
Frequently asked questions
- SKF 3306 E/C3 bearing: what are its dimensions?
- SKF 3306 E/C3 measures 30 mm across the bore and 72 mm across the outside diameter; its width is 30.2 mm (30 x 72 x 30.2 mm). Those are the boundary dimensions standardized in ISO 15 for basic designation 3306.
- What does the C3 suffix mean on an SKF bearing?
- C3 indicates internal radial clearance greater than standard. It is used with tight fits or temperature differences between shaft and housing to prevent the balls from becoming preloaded and overheating.
- Can a double row bearing replace a single row one?
- Not always directly. The double row handles higher radial and axial loads but may differ in dimensions and rigidity. Check shaft and housing dimensions, and consult us with the original part number to evaluate equivalence.
- What lubrication is recommended for these bearings?
- It depends on speed, temperature and environment. For general applications, a good quality lithium grease is usually suitable. Under extreme conditions, consult the manufacturer's data sheet or contact us for advice.