FAG 248/1800-B-MB spherical roller bearing
- Brand
- FAG
- Category
- Bearings
- Subcategory
- Spherical roller bearings
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Decoding FAG 248/1800-B-MB
- 248Series
- Spherical roller bearings, 248 series. Series differ in outside diameter and width even when the bore is the same.
- /1800Bore
- Bore: 1800 mm.
- B-MBSuffix
- FAG suffix: identifies the variant, such as seals or shields, cage, internal clearance or other features.
248/1800 is the standard ISO basic designation, which sets the bearing type, series and bore.
Description
FAG 248/1800-B-MB measures 1800 mm across the bore and 2180 mm across the outside diameter; its width is 375 mm (1800 x 2180 x 375 mm).
FAG 248/1800-B-MB belongs to spherical roller 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 248/1800-B-MB and any equivalents.
FAG spherical roller bearings handle radial and axial loads in both directions, and they tolerate shaft misalignment. Their two rows of rollers make them a common choice where heavy equipment runs under demanding conditions. MR Industrial Accessories LLC supplies this line and can help you match the right part number to your application.
The part code tells you a lot once you know how to read it. A series number comes first, then suffixes for design details. In large sizes, the digits after the slash often give the bore in millimeters, as in 230/1060-B-MB. The B suffix points to a machined brass cage, and MB confirms that cage style. Other series follow the same logic, so the code helps you identify the exact bearing your equipment needs.
These bearings show up in steel, cement, mining, paper, wind energy and material handling equipment, as well as in gearboxes, presses, mills and other large machines. The self-aligning feature suits long shafts that deflect under load, or assemblies where supports cannot be perfectly aligned. MR Industrial Accessories LLC supplies them for replacement and new projects across the United States and in several Latin American countries.
When selecting, look at radial and axial load, speed and shaft diameter. Check cage type and internal clearance: more clearance may be needed with interference fits or high temperatures. Lubrication should match the environment, with grease for normal conditions or oil for high-speed use. During mounting, align carefully and avoid direct blows on the rollers. Clean the seat and use the right tools to support service life.
For replacements, equivalent codes between manufacturers are common. Each brand may use its own suffixes for cage, clearance or heat treatment. The safest approach is to request a quote with the complete code from the bearing or with the main dimensions. MR Industrial Accessories LLC can help you find the FAG reference that fits your equipment and maintains the original performance.
If you need a FAG spherical roller bearing, send the part number or dimensions by WhatsApp or email to MR Industrial Accessories LLC. We reply promptly and can suggest equivalents and help you choose.
Dimensions
1800 x 2180 x 375 mm (d x D x B): boundary dimensions for basic designation 248/1800, according to ISO 15.
- Bore
- 1800mm
- Outside diameter (D)
- 2180mm
- Width (B)
- 375mm
Same size, other brands
Other brands' pages with basic designation 248/1800: 1800 x 2180 x 375 mm (d x D x B) per ISO 15.
- RKB248/1800
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
- FAG 248/1800-B-MB bearing: what are its dimensions?
- FAG 248/1800-B-MB measures 1800 mm across the bore and 2180 mm across the outside diameter; its width is 375 mm (1800 x 2180 x 375 mm). Those are the boundary dimensions standardized in ISO 15 for basic designation 248/1800.
- What does the B-MB suffix mean in a FAG bearing?
- The B suffix usually indicates a design with a one-piece machined brass cage, and MB confirms that cage type. These details matter when you need to maintain the same performance in a replacement.
- How do I choose the right spherical roller bearing?
- Consider radial and axial load, speed, shaft diameter and environmental conditions. Also check internal clearance and lubrication type. With that data, we can advise you on the correct FAG part number.
- What applications do these bearings have?
- They are used in steel, cement, mining, paper, wind energy and material handling equipment, as well as in gearboxes, presses and mills. Their self-aligning capability makes them suitable for shafts that deflect under load.