Modify 8mm Steel Ball Bearing Sets - 6pcs

Modify 6mm Steel Ball Bearing Set (GB-03-03)(4713072160935)
Modify 7mm Steel Bearing Set (GB-03-37)(4713072161154)
Modify 8mm Steel Ball Bearing Set (GB-03-38)(4713072161161)
Modify 8mm Ceramic Bearing Set (GB-03-33)(4713072161147)

About Modify 6mm Steal Ball Bearing Set (GB-03-03)(4713072160935):

• Hybrids Bearing (Steel and silicon nitride)
• Extended Bearing Life
• Highly stable 
• Grade P5

About Modify 7mm Steel Bearing Set (GB-03-37)(4713072161154):

• Hybrids Bearing (Steel and silicon nitride)
• Extended Bearing Life
• Highly stable 
• Grade P5

About Modify 8mm Ceramic Bearing Set (GB-03-33)(4713072161147):

• Grade: P5
• 2.5mm thick for minimum interference
• Bigger size steel balls

About Modify 8mm Ceramic Bearing Set (GB-03-33)(4713072161147):
Ceramic balls are over 100% harder than steel balls. In a hybrid bearing, the extremely hard and smooth Ceramic Ball keeps raceways clear of contaminants by pushing them away from the contact patch. In addition, the ceramic ball remains extremely smooth, preventing ball to race damage. For the end user, this means reduced bearing wear and longer bearing life at high precision.

1) Rolling Element: Silicon Nitride Balls.2) Ceramic balls are over 100% harder than steel balls. 3) In a hybrid bearing, the extremely hard and smooth.4) Ceramic Ball keeps raceways clear of contaminants by pushing them away from the contact patch. 5) The ceramic ball remains extremely smooth, preventing ball to race damage. 6) For the end user, this means reduced bearing wear and longer bearing life at high precision. * Vickers Hardness 10 KG Load: Ceramic = 1550, Steel = 730 Benefits of Hybrid Bearing Attributes: -Dissimilar Materials (Steel and silicon nitride) -Less Wear -Lower Operating Temperature -Higher Speed -Extended Bearing Life -Lower Friction Stiffness -Lower Vibration