NU1038-XL-M1

 

Main Dimensions & Performance Data

d	190 mm	Bore diameter
D	290 mm	Outside diameter
B	46 mm	Width
Cr	435,000 N	Basic dynamic load rating, radial
C0r	550,000 N	Basic static load rating, radial
Cur	66,000 N	Fatigue load limit, radial
nG	4,350 1/min	Limiting speed
nϑr	2,410 1/min	Reference speed
≈m	14.7 kg	Weight

Mounting dimensions

da min	200 mm	Minimum diameter shaft shoulder
da max	213 mm	Maximum diameter of shaft shoulder
db min	219 mm	Minimum shaft shoulder
Da max	280 mm	Maximum diameter of housing shoulder
ra max	2.1 mm	Maximum recess radius
ra1 max	2.1 mm	Maximum recess radius

Dimensions

rmin	2.1 mm	Minimum chamfer dimension
r1 min	2.1 mm	Minimum chamfer dimension
s	5 mm	Axial displacement
E	265 mm	Raceway diameter outer ring
F	215 mm	Raceway diameter inner ring
D1 min	255.9 mm	Minimum rib diameter outer ring

Temperature range

Tmin	-30 °C	Operating temperature min.
Tmax	150 °C	Operating temperature max.

NU1038-XL-M1 Cylindrical Roller Bearing: Robust Design for Heavy-Duty Applications
The NU1038-XL-M1 cylindrical roller bearing is engineered for high radial load capacity and operational reliability in demanding environments. Featuring a single-row, cage-guided design with optimized roller and raceway geometry, this bearing minimizes friction while maximizing load distribution. Its enhanced internal clearance (XL grade) ensures stable performance under heavy loads, thermal expansion, or misalignment. The M1 designation indicates superior machining tolerances for precision applications. Ideal for industrial machinery, this bearing is commonly used in gearboxes, pumps, and mining equipment where durability and extended service life are critical. Its interchangeable design simplifies maintenance and reduces downtime in production systems.

Advanced Material and Heat Treatment for Longevity
Constructed from high-grade chromium steel and subjected to advanced heat treatment processes, the NU1038-XL-M1 delivers exceptional wear resistance and fatigue strength. The brass cage (MA designation) provides superior guidance for rollers, even at high speeds, while reducing vibration and noise. A specialized surface finish on rollers and raceways enhances lubrication retention, making it suitable for applications with intermittent oil supply or grease lubrication. These features make the bearing a top choice for wind turbine main shafts, steel mill conveyors, and paper processing machinery. Its corrosion-resistant variants are also available for marine or chemically aggressive environments.

Versatile Solutions for Industrial and Renewable Energy Sectors
The NU1038-XL-M1 excels in applications requiring axial displacement accommodation, such as expanding shafts in heavy rotating equipment. Its compact design supports high power density in electric motors and generators, particularly in renewable energy systems like hydroelectric turbines. OEMs in the automotive sector utilize this bearing for rear axle configurations and transmission systems due to its shock load resilience. With customizable sealing options, it adapts to contaminated environments in agricultural or construction machinery. Global suppliers stock this model with ISO compliance, ensuring seamless integration into both legacy and modern industrial setups.

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