FAG NU411-XL-M1 cylindrical roller bearing
- Brand
- FAG
- Category
- Bearings
- Subcategory
- Cylindrical roller bearings
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Decoding FAG NU411-XL-M1
- NU 4Series
- Cylindrical roller bearings, NU 4 series. Series differ in outside diameter and width even when the bore is the same.
- 11Bore
- Bore 55 mm (11 × 5).
- XL-M1Suffix
- FAG suffix: identifies the variant, such as seals or shields, cage, internal clearance or other features.
NU 411 is the standard ISO basic designation, which sets the bearing type, series and bore.
Description
FAG NU411-XL-M1 measures 55 mm across the bore and 140 mm across the outside diameter; its width is 33 mm (55 x 140 x 33 mm).
FAG NU411-XL-M1 belongs to cylindrical 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 NU411-XL-M1 and any equivalents.
For equipment that carries heavy radial forces at speed, the FAG NU series cylindrical roller bearing is a common choice. Its separable layout simplifies installation and servicing, and the range covers machine tools, gearboxes and pumps where stiffness and accuracy matter. MR Industrial Accessories supplies this brand and can help you match the right part number to your application.
Reading an NU part number is straightforward. The NU letters denote a single-row cylindrical roller bearing whose inner ring has no flanges, so the shaft can move axially. The digits that follow, as in NU406-XL-M1 or NU410-XL-M1, set the size and load rating. XL marks the X-life version, with refined surfaces for longer operating life. M and the trailing digit, such as M1, identify the cage: a machined brass design. Understanding these elements lets you order the exact replacement.
These bearings appear in gearboxes, centrifugal pumps, compressors, machine tools and conveyors, as well as in metallurgical, food and petrochemical plants where radial loads are high and reliability is critical. Their capacity for elevated speeds suits electric motors and spindles. Because they separate, maintenance in continuously running facilities is easier.
Selection depends on the radial load, rotation speed and operating environment. Confirm that shaft and housing tolerances are correct and alignment is precise to avoid extra stress. Lubrication matters: pick a lubricant that matches temperature and speed, and ensure the seal keeps contaminants out. During mounting, use heating or pressing methods that will not damage rollers or raceways. Careful installation extends bearing life.
Bearings from different brands may be interchangeable when principal dimensions and design agree, but tolerances, cage type and load ratings must be checked before substituting one make for another. FAG NU series equivalents exist, yet letter and number codes can differ. A specialist can confirm compatibility. At MR Industrial Accessories we help you make a safe, efficient replacement.
To request a FAG NU series cylindrical roller bearing, send the part number or model through WhatsApp or email. Our team replies promptly with the information your equipment needs. MR Industrial Accessories is ready to assist.
Dimensions
55 x 140 x 33 mm (d x D x B): boundary dimensions for basic designation NU 411, according to ISO 15.
- Bore
- 55mm
- Outside diameter (D)
- 140mm
- Width (B)
- 33mm
SKF and other brands, same size
Other brands' pages with basic designation NU 411: 55 x 140 x 33 mm (d x D x B) per ISO 15.
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 NU411-XL-M1 bearing: what are its dimensions?
- FAG NU411-XL-M1 measures 55 mm across the bore and 140 mm across the outside diameter; its width is 33 mm (55 x 140 x 33 mm). Those are the boundary dimensions standardized in ISO 15 for basic designation NU 411.
- What does the XL suffix indicate on a FAG bearing?
- XL identifies the X-life execution, which uses design and manufacturing improvements intended to increase service life and load capacity. These bearings typically have optimized contact surfaces and tighter tolerances.
- How do I decide between an NU and an NJ bearing?
- NU has an inner ring without flanges, permitting axial displacement. NJ has a flange on the inner ring, providing axial location in one direction. Your choice depends on whether axial movement must be free or restricted.
- What should I check before mounting?
- Verify shaft and housing alignment, use the correct tools, and follow the maker's guidance for heating or pressing. Proper lubrication and effective sealing are also vital for performance.