MRC

MRC double-row angular contact bearings are used in equipment that experiences combined radial and axial loads. Common applications include centrifugal pumps, gear reducers, compressors, and electric motors. The 30° contact angle provides a balance between radial and axial load capacity, making these bearings suitable for medium-duty industrial machinery. They are often found in process industries, power generation, and manufacturing plants where rotating equipment is critical. The open design allows for relubrication, which can extend service life in contaminated or high-temperature environments. When selecting a bearing, consider the bore size, load magnitude, and speed requirements to ensure compatibility.

The MRC 3205 and 5205 refer to the same double-row angular contact ball bearing. The two numbers reflect different part numbering systems used by MRC over time. The 3205 is a metric series designation, while 5205 is an inch-series equivalent. Both have a 25 mm bore, a 30° contact angle, an open design, ABEC 1 precision, and a steel cage. When ordering, either number can be used to identify the bearing, but it is always good to confirm the bore and other specifications to ensure you receive the correct part. 3G Electric lists both designations for clarity.

No, the MRC double-row angular contact bearings listed by 3G Electric are supplied as single, unmatched bearings. This means they are not preloaded or matched as a pair. The double-row design inherently provides two rows of balls, so a single bearing can handle combined loads. If your application requires a matched set for specific preload or axial clearance, you would need to specify that separately. The standard supply is a single bearing, which simplifies inventory and replacement. Always consult the machinery manual for mounting and preload requirements.

The MRC double-row angular contact bearings in the 3G Electric catalog are ABEC 1 precision. ABEC 1 is a standard tolerance class defined by the Annular Bearing Engineers' Committee. It is suitable for many general industrial applications where high precision is not critical. For applications requiring tighter tolerances, such as machine tool spindles, higher ABEC classes (e.g., ABEC 3, 5, 7) would be needed. However, ABEC 1 bearings are commonly used in pumps, gearboxes, and other equipment where moderate precision is acceptable. The ABEC 1 rating ensures interchangeability and reliable performance in standard mounting arrangements.

3G Electric stocks MRC double-row angular contact bearings with bore sizes ranging from 15 mm to 75 mm. Specific sizes include 15 mm (3302/5302), 25 mm (3205/5205), 30 mm (3206/5206 and 3306/5306), 50 mm (3310/5310), 70 mm (3314/5314), and 75 mm (3315/5315). These metric bore sizes cover a wide range of shaft diameters. If you need a size not listed, it may be available on request. The part numbers typically include both the 3300 and 5300 series designations, which can help in cross-referencing. Always verify the bore diameter and other dimensions before ordering.

3G Electric distributes MRC double-row angular contact bearings and maintains inventory of multiple SKUs. The company provides logistics support for global shipping, allowing customers to procure these bearings from various locations. 3G Electric's catalog includes detailed specifications for each bearing, such as bore, contact angle, precision, and cage type, which helps buyers confirm compatibility. For procurement, 3G Electric offers quotation and order fulfillment services. Technical support is available to assist with part number identification based on application requirements. 3G Electric does not manufacture MRC bearings but serves as a distributor, ensuring access to these components for maintenance, repair, and operations.