The TIMKEN 73551/73875 tapered roller bearings consist of a bearings cone and bearings cup which belong in the single row tapered roller bearings class. As different row configurations for rollers are required| tapered roller bearings can also be divided to double row tapered roller bearings and four row tapered roller bearings.
Super Precision Bearings - NSK Europe Ltd. - PDF Catalogs
22 23 Part 1 Part2 Part 3 Part 4 Part 5 Part 6 Part 7 Part 8 Super Precision Bearings—Product Range Several types of super precision bearings are available from NSK, including the ROBUST™ series of high performance bearings, the special series of bearings for unique and specialized applications, and the standard series bearings.
BEARING DESIGNATION SYSTEMS -
NSK RHP Definition B Bearing with special dimensions, example: B 15 B Housing insert with no eccentric ring, example: B1030,30DEC F Bearing with flanged outer ring, example: 684 ZZ MC3 NS7LF HR For tapered roller bearings and deep,groove ball bearings: higher load rating, example: HR 32210 J J