ION - Precision ABEC-5 Yellow Seal Main Shaft Bearing Upgrade Set - TREX 500EFL PRO / 500ESP / GAUI X4 / X4II / NX4 / X5

Includes: (2) Precision Deep Groove Ball Bearings.

ABEC-5 Yellow Seal 8x16x5 Precision Deep Groove Ball Bearings set, replacement bearings to fit : GAUI X4 / X4II / NX4/ X5 / Goblin 380/420 / Trex 500EFL /PRO /DFC / 500ESP.

Direct replacement for Stock ALIGN part H50067

Direct replacement for Stock GAUI part 208761 and 803730

Direct replacement for Stock SAB Goblin Bearing HC419-S

NOTE: Also will fit KDE-Direct bearing Blocks for the TREX 500EFL PRO / 500E PRO / 500ESP / 500E

• Replace stock bearings with these high quality ABEC-5 "Yellow nitrile rubber seal" bearings with high tolerance, and more smoothness.
• These bearings are sealed and pre-greased.
• The Yellow Nitrile Rubber seales keep gear dust and metal shavings out, which is what can damage normal bearings that are not sealed.
  
• Nitrile rubber seals keep the grease clean and contained.
• Sealed bearings have a longer life span than regular bearings in RC helicopter applications, especially when dust and debris are present.
• The special nitrile yellow seals can be removed and reinstalled quickly and easily, if so desired.

If a Retailer/Vendor does not specify which ABEC rating, it's likely ABEC-1, or lower(not rated)!  Many helicopter kits come standard with ABEC-1 bearings. ABEC-5 bearings are much tighter in tolerance than ABEC-1 bearings, thus providing much higher accuracy, longer life, and more smoothness.

Example: