SKF 2306 M/P6 self-aligning ball bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Self-aligning ball bearings
We respond promptly.
Since 1945 · Martínez, Buenos Aires, Argentina
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Other brands in this category
Ask us about alternatives. Equivalence is verified for each reference and application.
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How to read SKF 2306 M/P6
- 23Series
- Self-aligning ball bearings, 23 series. For the same bore, each series has a different outside diameter and width.
- 06Bore
- 30 mm bore: 06 × 5.
- M/P6Suffix
- SKF suffix: it defines the variant (sealing, cage, internal clearance or other features).
2306 is the standard (ISO) basic designation: it defines the type, the series and the bore.
Description
The SKF 2306 M/P6 bearing has a 30 mm bore, a 72 mm outside diameter and a 27 mm width (30 x 72 x 27 mm).
SKF 2306 M/P6 is a reference of self-aligning ball bearing, within Bearings. Request a quote for 2306 M/P6 via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
The SKF self-aligning ball bearing of the 2305 M/P6 series is a double-row ball bearing with a spherical outer ring surface, which allows it to self-align and compensate for angular misalignment between shaft and housing. It is used in equipment where perfect alignment is not guaranteed, such as transmissions, pumps and industrial fans. Its robust design and its ability to support radial and moderate axial loads make it a reliable option in demanding applications.
The designation of these bearings is interpreted as follows: the prefix 23 corresponds to the series of double-row self-aligning ball bearings; the number that follows indicates the bore diameter (multiplied by 5). The suffix M indicates that the cage is machined brass, suitable for high speeds and elevated temperatures. The suffix /P6 indicates precision class 6 according to ISO standard, with tighter tolerances than the normal class. Knowing these codes lets you quickly identify the bearing's characteristics.
These bearings are used in a wide variety of industries in Argentina: food plants, cement plants, steel mills, paper mills and petrochemical plants. They are common in industrial fans, centrifugal pumps, compressors, conveyor belts and machine tools. Their self-aligning capability makes them ideal for equipment where shafts may flex or where housings are not perfectly machined. They are also used in applications with combined loads, where the axial component is moderate.
To correctly select a self-aligning bearing, take into account the radial and axial load it must support, the rotation speed and the environmental conditions. Sealing is key: if there is dust or moisture, choose versions with seals or shields. Lubrication must be adequate: high-quality grease for high temperatures or oil in circulation systems. During mounting, check the initial alignment and avoid striking the outer ring. The M brass cage requires careful handling so as not to deform it.
As for equivalents, self-aligning ball bearings are manufactured under international standards, so a similar code from another brand may be interchangeable, but always verify the exact dimensions and tolerances. The SKF 23 series with M suffix and P6 class has equivalents in other brands, although the suffixes may vary. Do not assume that a similar code is identical: consult the manufacturer's tables. At MR Accesorios Industriales we sell SKF and can advise you on interchangeability.
If you need to replace a self-aligning bearing, send us the full code via WhatsApp to MR Accesorios Industriales. We help you identify the right part and request a quote for it. Let's not improvise with measurements: the exact code prevents errors and plant downtime.
Dimensions
Boundary dimensions of the basic designation 2306 per ISO 15: 30 x 72 x 27 mm (d x D x B).
- Bore
- 30mm
- Outside diameter (D)
- 72mm
- Width (B)
- 27mm
The same size in other brands
Pages from other brands with the basic designation 2306: 30 x 72 x 27 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 2306 M/P6 bearing?
- The SKF 2306 M/P6 bearing has a 30 mm bore, a 72 mm outside diameter and a 27 mm width (30 x 72 x 27 mm). These are the standardised boundary dimensions (ISO 15) of the basic designation 2306.
- What does the suffix M mean on an SKF bearing?
- The suffix M indicates that the cage is machined brass, a material that withstands high speeds and temperatures better than stamped steel cages. It is common in precision bearings.
- What does precision class P6 indicate?
- Class P6 is a precision tolerance according to ISO, tighter than the normal class. It is used in applications where greater rotational accuracy is required, such as machine tool spindles.
- Is this bearing interchangeable with other brands?
- It may be if dimensions and tolerances match, but suffixes vary between manufacturers. Always verify the full code and consult us before replacing.