FEATURES: Assembled with diamond polished super lightweight Ceramic Nitride
Balls which do not deform under load and also insure low friction
and low heat buildup
Over 33% less bearing friction compared to conventional bearings
Exclusive no contact seals for the lowest friction and best dirt
resistance
Lightly oiled with Acer's SIN synthetic oil that creates an ionic
bond between the oil and bearing parts for silky frictionless
action
INCLUDES: Two 8 x 12 x 3.5mm bearings