440C + Si3N4 +ZrO2 Ceramic Ball bearing upgrade | For SRBS + MRBS for Sale

440C + Si3N4 +ZrO2 Ceramic Ball bearing upgrade | For SRBS + MRBS For Sale

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440C + Si3N4 +ZrO2 Ceramic Ball bearing upgrade | For SRBS + MRBS:
$12.00

Same day shipping Mon - Sat.USA: $2 Shipping via USPS Ground Advantage**Other countries: Shipping via International Mail for $1.50
**Due to the number of requests and refunds for missing packages, US shipments will be shipped via tracked service only.
(50 count)Bearing Balls.Included a few extra for good measure -SRBS use 36; MRBS use 42.Verified fitment with SRBS, MRBS equipped models and variants of: Quantum, F95, F3, Neon, 111, Hati, and Stellar.
Choose between:(a) AISI 440C | Stainless steel.(b)Si3N4Silicon Nitride | Ceramic.(c)ZrO2 Zirconium Dioxide | CeramicAISI 440C Stainless steel:Higher wear resistance hardness for extended life, 16-18% chromium 0.75-1.2 carbon, compared to original equipment AISI 420\'s 12-14% chromium 0.5-0.75 carbon. Small/insignificant reduction in corrosion resistance to original bearings made of AISI 420.
Si3N4Silicon Nitride Ceramic vs.ZrO2 Zirconium Dioxide Ceramic:They carry near identical attributes as ceramics. For a pocket knife, where they deviate is the user\'s need for specific attributes. Si3N4\'s lower requirement for lubrication where they can be run dry without performance degradation, whereas ZrO2 is even more resistant to abrasion. They are both Grade 5 in finish and sphericity, and the differences are imperceptible.These ceramic ball bearings cured a slow and stiff F95T Gen4, and added additional corrosion resistance to the main moving parts of the knife.Like my other listings, the on-hand quantity does reflect actual inventory.