Introduces a bearing the difference between the micro series ZZ and RS

Analysis the difference between the bearing series miniature ZZ and RS of miniature bearing refers to metric series, outer diameter less than 9 mm; Inch series, outer diameter less than 9. All kinds of bearing 525 mm! Main material is carbon steel, bearing steel, stainless steel, plastic, ceramic, etc. , including minimum inner diameter can be 0. 6 mm, inner diameter of 1 mm more commonly. Miniature bearing series: 1, open without sealing advantages: ultra-high-speed mute idling better faults: dustproof effect is less susceptible to stuff into suitable for: sufficient lubrication work environment, closed 2, metal sealed bearing advantages: ultra-high-speed high-temperature dust effect of medium maintenance free faults: not prevent debris into liquid suitable for: high speed run 3, rubber seal bearing advantages: dustproof effect the invasion of the master can prevent all sorts of sundry faults: not suitable for high temperature environment suitable for: the use environment of bad dust waterproof bearing on the difference between ZZ and RS: deep groove ball bearing models at the back of the letter, usually with Z or ZZ behind and it is said the bearing seal is metal dust cover; RS or 2 RS said bearing seal is rubber sealing ring. The ZZ said steel dust cover, it usually applies to: 1. The external environment better occasion; 2. Suitable for high-speed operation and has high temperature requirements of the occasion. 2 rs said rubber seal, contact sealed performance is good, suitable for: 1. The requirement of the external environment is poor, dust prevention occasions; 2. Start speed general occasions.