WD40 I am not able to see your pictures, being where I am. But as a general quick fix, you can spray WD40 over the rusted area. Be careful. Do not overspray. Or you can dissemble the rusted components and immerse them in WD40. Make sure you know how to assemble them back.
Don,t！No everyone have good skill to avoid over spray！ 請噴在布、衛生紙、棉花棒上再擦！ 樂器行有賣比較細的粗臘差鍍鉻配件，Fender 有出！ ============================================== 基本上壞掉在換一顆，搖座是慢性消耗品
hjack, thank you. machi, if you are not confident whether you can do the job right, take the guitar to jeff or any reputed guitar techs. peace
wow JustPlay come from NEW YORK google翻譯幫了我大忙 我看最近要加強英文了 感謝各位 那生鏽是要換 整個搖座還是有換生鏽那部分的 這是我另外的疑問 忘了說 我的琴是Ibanez RBM 400 非常古老日場琴 現在換的跟原場出場的搖座 會差很多嗎 應該會先自己搞搞看 沒搞頭 我應該會拿去給 高雄 四哥 處理!!
RBM400應該是LO-PRO 直接換一般高階大搖座 如果是EDGE-PRO的(寬度不同)，除了換原廠 換floyd rose original要重新打洞 換其他的要挑一下款式， 基本上壞掉再換就好，會生鏽表示不是塑膠的零件，是好事！ 中低階只會掉漆，從來不鏽的... original一個搖座要六七千，只換六個saddle也要兩千多(金色可能要三千)