求翻译：（1） 本滚子回转装置采用滚动轴承，需定期加脂润滑，位于滚子两端的集尘挡盖可防止灰尘的进入同时也防止润滑脂的挥发。是什么意思？

Roller rotary device (1) The use of rolling bearings and grease lubrication, requiring regular dust at both ends of the roller door to prevent dust from entering but also to prevent the grease of the volatilization.

(1) * This roller swing in a rolling bearing, the grease will be regularly, both ends of the roller is located on the dust cover to prevent dust from entering the same time prevent grease evaporation.

(1) This roller turning gear uses the rolling bearing, needs the regular stuffing lubrication, is located the roller both sides the collection dust to keep off the lid to be possible to prevent the dust enters simultaneously also prevents the lubricant the volatility.

(1) the adopted ball bearing roller slewing device, the need for periodic and grease lubrication, the dust at the ends of the roller block cover prevents dust from entering while also preventing grease volatile.

正在翻译，请等待...