1. the bead is Si3N4 black ceramic, with self-lubricated character;
2. 7-balls design with non-deformed structure;
3. black oxide surface, never get rusted;
4. strengthen cage avoid cracking;
وصف
bearing
Features:
1. the bead is Si3N4 black ceramic, with self-lubricated character;
2. 7-balls design with non-deformed structure;
3. black oxide surface, never get rusted;
4. strengthen cage avoid cracking;
Package included:
16 pieces bearings