Pfeiffer TMH 521 / TMU 521 Ceramic Turbopump Bearing Kit (2000016403 / PM E11 001-T)

High-precision replacement hybrid ceramic lower bearing assembly engineered specifically for Pfeiffer Vacuum turbomolecular pumps. Direct OEM cross-reference for part numbers 2000016403 and PM E11 001-T.

Key Features:

• 12-Point Wick Lubrication: Features 12 precision radial oil feed ports around the outer ring to seamlessly integrate with Pfeiffer's bottom wick lubrication system.
• Hybrid Ceramic Construction: Silicon Nitride (Si3N4) ceramic balls paired with precision raceways reduce friction, thermal expansion, and vibration at extreme rotational speeds (60,000+ RPM).
• Plug-and-Play Fitment: Precision 7mm x 19mm x 7mm dimensional standards ensure exact drop-in replacement during standard pump overhauls.

Technical Specifications:

• Dimensions: 7 mm x 19 mm x 7 mm
• Lubrication Ports: 12 Radial Outer Ring Oil Holes
• OEM Cross-Ref: 2000016403 / PM E11 001-T
• Bearing Type: High-Speed Hybrid Ceramic (Si3N4)
• Position Fitment: Lower Main Bearing Assembly

Compatible Pump Models:

• Pfeiffer TMH Series: TMH 521, TMH 520, TMH 261, TMH 260
• Pfeiffer TMU Series: TMU 521, TMU 520
• Pfeiffer HiPace Series

Shipping & Fulfillment: Supplied by Strativ Components with tracked express courier dispatch across Australia and New Zealand.

Notice: Strativ Components is an independent supplier of high-vacuum replacement components. All OEM part numbers are listed for compatibility reference only.