表2(续一)轴承类别轴承名称简图新标准旧标准根据类型代号尺寸系列代号或配合特征尺寸代号 轴承基本代号轴承代号滚针·…‘………外圈有双挡边无内圈有保持架的双列滚针轴承l氧RNA69 RNA69(洲)(FW〕40mm)63549《X】}孟之/z‘妇z//Z崖日门心外圈带双锁圈的滚针轴承NANA4849NA48 Table 2 (Continued) Bearing Name Bearing New Standard Old Standard According to the type code size series code or with the feature size code bearing basic code bearing code needle · ... ’......... outer ring with double ribs no inner ring Cage double row needle roller bearings l oxygen RNA69 RNA69 (cont) (FW) 40mm) 63549 “X”} Meng of / z ’women z // Z Yaqian door outer ring with double lock ring needle roller bearings NANA4849NA48