ProTech bearing isolators are
unitized two-piece, dynamic seals. The permanently assembled rotor
and stator utilize labyrinth technology for complete lubricant retention
exclusion with zero shaft wear. Custom designs are available for higher speeds, axial movement and high misalignment (STBM)
Proprietary PTFE compounds including FDA compliant materials
UL certified & IEEE IP-rated designs
ProTech Bearing Isolators are
unitized two-piece, dynamic seals. The permanently assembled rotor and stator
utilize labyrinth technology for complete lubricant retention and contaminant
exclusion, therebyextending bearing life -- with
zero shaft wear.
Bearing isolators are an upgrade from standard lip seals, however when one considers the total cost of the sealing system over the total life span, it is well worth it for key equipment such as pumps, motors, gear boxes, and split pillow blocks.
The cost of downtime in today’s
manufacturing environment has been the primary driver behind companies’ decisions to convert
from standard lip seals to bearing isolator-type seals. Standard lip seals have a
typical life of 3,000 to 5,000 hours. With true non-contact ProTech designs there is nothing to wear out; thereby extending mean time between failure (MTBF). With a bearing isolator solution, the seal is no longer the limiting factor for the bearings reaching the basic life rating stated by bearing manufacturers (L10 rating).
savings are realized by
Less unplanned downtime
Lower maintenance expenses with fewer
Lower torque consumption which results in
lower energy usage
some cases, the energy savings alone offsets upgrade costs.
standard profiles are available to meet specific design requirement and
with or without flange to provide
labyrinth sealing in restricted widths
and multiple expulsion (drain) ports when directional installation is a concern
IEEE-841 to provide premium bearing protection on severe-duty electric motors