tailieunhanh - Lubrication and Reliability Handbook 2010 Part 4

Tham khảo tài liệu 'lubrication and reliability handbook 2010 part 4', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | A14 Selection of lubrication systems METHODS OF SELECTION Table Oil systems Type Characteristics Application Hand Oil can Simple bearings Type D Small numbers T low duty o easy access T A Centralised Intermittent feed Small heat L Type D removal difficult access L large numbers o . . s Mist Aerosol spray. Rolling bearings s Tvpe H mechanisms s Splash Lubrication by Enclosed E Type G mist mechanisms L gearboxes Dip Ring or disc Plain bearings c Type F systems. Oil slow or o circulates moderate duty N T Wick Pad or wick feed Plain bearings A Type E from low duty. I reservoir Light loaded N total loss or mechanisms E limited D circulation Circulating Oil from tank or Almost all Type J sump fed by applications pressure pump where cost is to bearings justified or sprays Table Grease systems Type Characteristics Applications Non replenishable Type A Bearings packed on assembly. Refilling impossible without stripping Rolling bearings some plastic bushings Local hand Type Bi Grease nipple to each bearing Small numbers easy access cheap Centralised hand Type B2 Feed pipes brought to manifold or pump Reasonable numbers. Ina . Í essible bearings Centralised Grease pump Large numbers Table Relative merits of grease and oil systems Component or performance requirement Grease Oil Removing heat No Yes. Amount depends on system Keep out dirt Yes. Forms own seal No. But total loss systems can flush Operate in any attitude Yes. Check design of grease valves No. Unless specially designed Plain bearings Limited slow speed or light load Extensive Rolling bearings Extensive Extensive Sealed rolling bearings Almost universal No Very low temperatures No. Except for some special greases Yes check pour point of oil Very high temperatures No. Except for some special greases Yes. With correct system Very high speeds No. Except small rolling bearings Yes Very low or intermittent speeds Yes Hydrodynamic bearings limited. Hydrostatic bearings yes Rubbing plain bearings Yes Yes. .

TỪ KHÓA LIÊN QUAN
crossorigin="anonymous">
Đã phát hiện trình chặn quảng cáo AdBlock
Trang web này phụ thuộc vào doanh thu từ số lần hiển thị quảng cáo để tồn tại. Vui lòng tắt trình chặn quảng cáo của bạn hoặc tạm dừng tính năng chặn quảng cáo cho trang web này.