Protech Millennium

To meet the challenges of refineries, Parker Hannifin offers the Millennium metallic bearing isolator. The Millennium sets new standards for metallic bearing isolators. Standard features include oil return grooves specifically designed for severe oil splash retention, an internal labyrinth design that does not rely on an internal o-ring for sealing, a “wrap around” rotor to stator interface that maximizes contaminate exclusion and ease of installation. Millennium isolators are available in standard designs from bronze material or custom configurations and materials including stainless steel (304, 316 & 416), carbon steel, aluminum and exotic alloys.

• Fewer working components for increased reliability
• Easier to install than traditional metal bearing isolators
• Accommodates greater shaft misalignment and eccentricity
• Self-aligning
• Requires no lubrication
• Non-contact design for no wear and no heat generation
• Total exclusion of dust, water, and other contaminants
• Zero lubricant leakage

STANDARD OPERATING PARAMETERS
Standard Operating Parameters
A- Shaft Tolerances = ±.002" (± .05mm)
B- Bore Tolerances = ±.002" (±.05mm)
C- Cavity Width
D- Seal into Bore Depth
E- Seal Width
F- Overall Diameter (B+1/8")(B+3.2mm)
Total Eccentricity: .020" TIR (.51mm)
Shaft Speed: 10,000 fpm
(higher limits at lower temperatures)
Pressure: 0 psi
TEmperaature Range: -40ºF to +400ºF (-40ºF to+204ºC)
Chamfer Width-CHa: .032"-.063" (.8mm-1.6mm)
Bore Width-CHb: .032"-.063" (.8mm-1.6mm)

MILLENNIUM STANDARD SIZES
Minimum Standard Shaft Size: .500" (12.5mm) and up
Maximum Standard Shaft Size*: 6.0" (152mm)
Standard Cross Section: .312" (8mm) to .750" (19mm)
For Shaft Diameters Over 4": .375" (11mm) to.750" (19mm)
Standard Seal Width: .688" (17mm) to .750" (21mm)
(varies with shaft size)
Minimum Extension into Bore: .312" (8mm) nominal

*Note: Special sizes are available.