Brochure
X$DUltra 841 IEC motors–
built to a higher standard
Six Star Bearing System™
Bearings, the life force of a motor, are what keep
the X$D Ultra 841 IEC running smoothly. These
features protect and lubricate the bearings,
adding to the durability and longevity of the
X$D Ultra 841 IEC.
• Oversized bearings on both ends of the motor
offer optimum performance.
• Cast-iron bearing caps with gaskets retain
lubrication and protect the bearing system
from contaminants.
• Low temperature rise designs– 15% cooler on
average than IEEE standards– increase bearing life.
• Overall vibration of 1.4mm/s peak results in
smooth, reliable operation and extends bearing life.
• 130,000 hour L10 direct
connected and 26,280
hours belted bearing
life increases uptime
and decreases
maintenance costs.
• Full charged lubrication
system with a tem-
perature resistant
polyurea grease, suitable
for a wide temperature
range (-40°C to +130°C).
Safety
• Safer lifting is possible with a four point lifting
system versus a single eyebolt. Cast-in lifting lugs
eliminate eyebolts that may strip, shear, get lost
or be improperly selected.
• Extended grease fittings for easy and safe access.
IEC Design N electrical design
• Normal starting torque and low
inrush current
Rotor assembly balanced
to ISO 1940 Grade 1.0 for
low vibration.
The vibration level is
50% lower than the
requirement of IEEE
841-2009 Standard
and can increase bearing
life by as much as 60%