SKF 6308 N deep groove ball bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Deep groove ball bearings
We respond promptly.
Since 1945 · Martínez, Buenos Aires, Argentina
Request your quote via WhatsApp or email, with the quantity you need.
Other brands in this category
Ask us about alternatives. Equivalence is verified for each reference and application.
Can't find the exact model? Write to us with the part number or model you're looking for: we'll find it and quote it, even if it's not listed in the catalog.
How to read SKF 6308 N
- 63Series
- Deep groove ball bearings, 63 series. For the same bore, each series has a different outside diameter and width.
- 08Bore
- 40 mm bore: 08 × 5.
- NSuffix
- SKF suffix: it defines the variant (sealing, cage, internal clearance or other features).
6308 is the standard (ISO) basic designation: it defines the type, the series and the bore.
Description
The SKF 6308 N bearing has a 40 mm bore, a 90 mm outside diameter and a 23 mm width (40 x 90 x 23 mm).
SKF 6308 N is a reference of deep groove ball bearing, within Bearings. Request a quote for 6308 N via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
SKF deep groove ball bearings with snap ring groove are single row bearings that incorporate a machined groove in the outer ring. This groove allows the bearing to be fixed axially in the housing by means of a snap ring, without the need for covers or shoulders. They are used in equipment where the aim is to simplify housing machining and facilitate assembly. MR Accesorios Industriales sells this line with technical advice to select the correct variant.
The designation of these bearings combines the series number with the suffix N. In the examples, 6006 N, 6205 N or 6308 N, the number identifies the dimensional series: 60 is the extra-light series, 62 the medium section and 63 the most robust, but other series are possible depending on the code. The suffix N indicates that the outer ring has a groove for a snap ring. Do not confuse this suffix with a loose letter: it always accompanies the series number and defines a specific constructional feature.
These bearings appear in electric motors, centrifugal pumps, fans, gearboxes and conveyors. In Argentine industry they are found in packaging lines, refrigeration equipment, machine tools and drives in food plants. The snap ring groove simplifies housing design: instead of a machined shoulder, a snap ring is used that locks the outer ring and absorbs moderate axial forces.
To select correctly, take into account internal clearance, sealing type and lubrication. If the equipment works with dust or humidity, it is advisable to evaluate variants with seals or shields. Alignment between shaft and housing is key: excessive misalignment shortens bearing life. During assembly, verify that the snap ring seats correctly in the groove and that the outer ring is free to expand.
Interchangeability between brands is handled by designation system: a series 62 bearing with groove from one brand can be replaced by the equivalent from another if dimensions, clearance and execution match. The series number alone is not enough: tolerances, cage type and lubricant must be compared. If you have doubts, send us the complete code and the housing dimensions.
At MR Accesorios Industriales we work with SKF bearings and other transmission lines. If you need to replace a bearing with groove, send us the code engraved on the ring, the equipment brand and a photo of the assembly. With that data we will quote the appropriate variant via WhatsApp and advise you on the compatible snap ring.
Dimensions
Boundary dimensions of the basic designation 6308 per ISO 15: 40 x 90 x 23 mm (d x D x B).
- Bore
- 40mm
- Outside diameter (D)
- 90mm
- Width (B)
- 23mm
The same size in other brands
Pages from other brands with the basic designation 6308: 40 x 90 x 23 mm (d x D x B) per ISO 15.
They share the boundary dimensions set by ISO 15, not the technical data: seals or shields, internal clearance, cage and load rating can differ by brand and suffix. We quote each one by its full part number.
Frequently Asked Questions
- What are the dimensions of the SKF 6308 N bearing?
- The SKF 6308 N bearing has a 40 mm bore, a 90 mm outside diameter and a 23 mm width (40 x 90 x 23 mm). These are the standardised boundary dimensions (ISO 15) of the basic designation 6308.
- What does the suffix N mean in a deep groove ball bearing?
- The suffix N indicates that the outer ring has a machined groove for fitting a snap ring. This ring fixes the bearing axially in the housing and prevents it from moving. It does not change the main dimensions or the load capacity of the bearing.
- How do I request a quote for an SKF bearing with groove?
- Send via WhatsApp the complete code that appears on the ring, for example 6205 N, together with the brand and model of the equipment. If you do not have it at hand, send us the shaft and housing dimensions. With that we will quote the correct variant.
- Can I replace a bearing with groove with one without groove?
- It is not recommended if the housing design depends on the snap ring for axial fixing. A bearing without groove does not allow mounting that ring. If the housing has another fixing system, consult us and we will evaluate the alternative.