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Deep groove ball bearing SKF MRC.309MG
- Manufacturer Part Number
- MRC.309MG
- Brand
- SKFOfficial brand
- Category
- Bearings
- Subcategory
- Deep groove ball bearings
Other brands in this family
- FAG
- NTN
- TIMKEN
Ask us about alternatives. Equivalence is verified for each reference and application.
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Description
SKF MRC.309MG is a deep groove ball bearing reference, within Bearings. Request a quote for MRC.309MG via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
The SKF MRC MG series deep groove ball bearing is a single row bearing with a machined bronze cage, designed to support radial and moderate axial loads in both directions. It is used in equipment where cage robustness and dimensional stability matter more than limiting speed. MR Accesorios Industriales carries this line within its bearing catalog.
The designation of this series combines the MRC prefix with a three-digit number and the MG suffix. The central number identifies the bearing size within the series: the higher the number, the larger the outer diameter and width. The MG suffix indicates a machined bronze cage, riveted or machined depending on size, suitable for continuous service and elevated temperatures. In the examples MRC.308MG, MRC.309MG, MRC.312MG and MRC.412 MG you can see how the number changes and the suffix remains. To confirm dimensions for a specific part number, consult the manufacturer's table.
This type of bearing appears in power transmission equipment, centrifugal pumps, industrial fans, conveyor belts and machine tools. In the Argentine market it is found in food plants, petrochemical plants, cement plants and in maintenance workshops that replace bearings from imported equipment. The bronze cage makes it suitable for demanding duty cycles, with combined loads and grease or oil lubrication depending on the assembly. It is a frequent choice when durability is sought in equipment operating many hours per day.
To select the correct bearing, start with the shaft diameter, the housing and the type of load. Verify the internal clearance according to the application: assemblies with interference fit on the shaft usually require normal or C3 clearance. Lubrication should be chosen according to temperature and speed: grease for simple assemblies, oil when there is heat dissipation or high revolutions. During mounting, align both bearing seats well, avoid impacts on the rings and use suitable extraction and insertion tools. Correct sealing extends service life in dusty or humid environments.
Deep groove ball bearings are interchangeable between manufacturers when main dimensions, clearance and cage type match. A part number with MG suffix for bronze cage can be replaced by another manufacturer's with an equivalent cage, but tolerances, clearance and limiting speed must be verified before substituting. It is not advisable to mix bearings from different brands in the same assembly if uniform behavior is desired. When in doubt, compare the complete designations and consult the supplier for the exact equivalent.
If you have the part number of the bearing to replace, send it via WhatsApp to MR Accesorios Industriales along with a photo of the assembly or the equipment identification plate. With that data, the selection can be guided and the quote prepared. MR Accesorios Industriales carries SKF within its line of bearings, housings and power transmission.
This description provides guidance on the product type. Check the configuration and dimensions of this reference.
Dimensions
Dimensions and tolerances: Send us the part number via WhatsApp and we'll confirm dimensions, sealing, and internal clearance against the manufacturer's data sheet.
Frequently Asked Questions
- What does the MG suffix mean in an SKF MRC series bearing?
- The MG suffix identifies a machined bronze cage. It is a more robust cage than the steel plate one, suitable for demanding loads, elevated temperatures and continuous service. It is advisable to confirm in the complete bearing designation before ordering.
- How do I request a quote for an MRC MG bearing?
- Send the complete part number via WhatsApp, for example MRC.308MG, and if possible a photo of the old bearing or the assembly. With that data the designation is confirmed and the quote is prepared. MR Accesorios Industriales handles this type of technical inquiry.
- Can an MRC MG bearing be replaced by another brand?
- Yes, as long as main dimensions, internal clearance and cage type match. Designations change between manufacturers, so the complete technical data sheet must be compared. If the assembly is critical, it is advisable to consult before substituting to avoid differences in tolerance or limiting speed.

