ProTech™ Bearing Isolator Rotary Shaft Seals
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 with zero shaft wear. Custom designs are available for higher speeds, axial movement and high misalignment (STBM) conditions.
Parker Hannifin Corporation
Engineered Polymer Systems Div.
Phone: 801 972 3000
© 2016, Parker Hannifin Corporation
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, thereby extending 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).
Cost savings are realized by
In some cases, the energy savings alone offsets upgrade costs.
Multiple standard profiles are available to meet specific design requirement and geometry constraints
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