二轴205轴承(靠安装齿轮一侧)是小四轮拖拉机传动系的最薄弱环节,其使用寿命一般只有1000多小时(长期使用只有半年左右),个别机车几个月便损坏。205轴承损坏后如不及时发现,轴承珠粒会掉入 Two-shaft 205 bearings (on the gear side) are the weakest link in a small four-wheel tractor drivetrain. Their service life is typically over 1,000 hours (long-term use is only about six months) and individual locomotives are damaged in a matter of months. 205 bearing damage if not found in time, bearing beads will fall into