SKF 6336 M/C4HVQ6391 deep groove ball bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Deep groove ball bearings
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Decoding SKF 6336 M/C4HVQ6391
- 63Series
- Deep groove ball bearings, 63 series. Series differ in outside diameter and width even when the bore is the same.
- 36Bore
- Bore 180 mm (36 × 5).
- M/C4HVQ6391Suffix
- SKF suffix: identifies the variant, such as seals or shields, cage, internal clearance or other features.
6336 is the standard ISO basic designation, which sets the bearing type, series and bore.
Description
SKF 6336 M/C4HVQ6391 measures 180 mm across the bore and 380 mm across the outside diameter; its width is 75 mm (180 x 380 x 75 mm).
SKF 6336 M/C4HVQ6391 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 6336 M/C4HVQ6391 and any equivalents.
For maintenance and purchasing teams dealing with high-speed shafts, the SKF M/C HVQ deep groove ball bearing offers a combination of a machined brass cage and a special execution. This single-row bearing handles radial and axial loads in both directions. It is commonly found in electric motors, pumps, gearboxes, compressors, machine tools and large industrial fans, where low friction and high rigidity matter.
The code breaks down into distinct elements. The letter M denotes a machined brass cage, which provides strength for elevated temperatures and high speeds. The letter C followed by a number, such as C4 in 6336 M/C4HVQ6391, indicates internal radial clearance; C4 is greater than standard. HVQ identifies a special execution with tightly controlled tolerances and characteristics for applications requiring very stable performance. A manufacturer serial or batch number completes the full designation.
These bearings appear in steel, cement, paper and petrochemical plants, as well as in power generation and food processing, where equipment runs continuously and reliability is critical. Their ability to take combined loads and run at high speeds suits main drives and high-speed shafts. In such settings, they help lower corrective maintenance needs.
Choosing the right variant starts with the required internal radial clearance. A C4 clearance is selected when thermal expansion or heavy interference fits are present, as it prevents excessive preload. During mounting, use suitable tools and avoid direct blows on the rings; ensure careful alignment between shaft and housing. Follow the manufacturer's lubrication specification and check the sealing of the assembly to keep particles out, since contamination accelerates wear.
When considering interchangeability, deep groove ball bearings from other makers may carry similar but not identical designations. Compare main dimensions, internal clearance, cage type, and dimensional and running tolerances. A mismatch can cause premature failure or poor performance. Validate any equivalence with a specialist and review actual operating conditions before substituting one brand for another.
To request a quote for an SKF M/C HVQ series bearing or any other component, send the complete bearing code or your application dimensions via WhatsApp or email. The team at MR Industrial Accessories will help you confirm the correct solution and suggest equivalents when needed.
Dimensions
180 x 380 x 75 mm (d x D x B): boundary dimensions for basic designation 6336, according to ISO 15.
- Bore
- 180mm
- Outside diameter (D)
- 380mm
- Width (B)
- 75mm
Same size, other brands
Other brands' pages with basic designation 6336: 180 x 380 x 75 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 6336 M/C4HVQ6391 bearing: what are its dimensions?
- SKF 6336 M/C4HVQ6391 measures 180 mm across the bore and 380 mm across the outside diameter; its width is 75 mm (180 x 380 x 75 mm). Those are the boundary dimensions standardized in ISO 15 for basic designation 6336.
- What does the C4 suffix mean in the M/C4HVQ designation?
- C4 indicates an internal radial clearance greater than standard. It is specified for applications that must accommodate thermal expansion or interference fits, avoiding excessive preload that would shorten service life.
- Does this bearing come with a brass cage?
- Yes, the M in the designation stands for a machined brass cage. This cage type suits high speeds and temperatures and offers more precise ball guidance than stamped steel cages.
- Can I replace an SKF bearing of this series with one from another brand?
- Often yes, but you must verify that dimensions, internal clearance, cage type and tolerances match. Designations for equivalent characteristics vary between manufacturers, so consult a specialist before making the change.