To provide a bearing for a printer that achieves improvement in bearing stiffness by optimizing a preload set value without extremely reducing a bearing service lifetime.
The bearing 10 for a printer is provided with outer ring elements 12, 12 respectively having each double row raceway 12a, 12a on each inner peripheral face, inner ring elements 15, 15 respectively having each double row raceway 15a, 15a on each outer peripheral face, and a plurality of conical rollers 17, 17 provided in a freely rotatable way between both outer ring raceways 12a, 12a and both inner ring raceways 15a, 15a. The plurality of conical rollers 17, 17 are imparted with a preload in consideration of an elastic deformation amount by an external load at each contact part between each conical roller 17, 17 and each outer ring raceway 12a, 12a and between each conical roller and each inner ring raceway 15a, 15a.
Hironori Honda
Toshimitsu Ichikawa