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Tham khảo tài liệu 'ntn, ball and roller bearing catalog part 7', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Self-Aligning Ball Bearings NTN Equivalent bearing load dynamic Pr XFr YFa Fa Fr e Fa Fr e X Y X Y 1 Y1 0.65 Y2 static Por Fr YoFa For values of e Y1 Y2 and Yo see the table below. Constant Axial load factors Mass kg cylindrical bore tapered bore e Y1 Y2 Yo approx. 0.32 0.64 2 0.98 3.09 1.52 2.09 1.03 0.033 0.047 0.34 1.85 2.87 1.94 0.058 0.67 0.95 1.46 0.99 0.083 0.36 1.76 2.73 1.85 0.04 0.58 1.09 1.69 1.14 0.051 0.33 1.91 2.95 2 0.066 0.61 1.03 1.59 1.08 0.091 0.33 0.50 1.91 1.25 2.95 1.94 2 1.31 0.049 0.06 0.34 1.86 2.88 1.95 0.092 0.52 1.22 1.88 1.27 0.114 0.31 2.03 3.14 2.12 0.072 0.51 1.23 1.90 1.29 0.088 0.32 1.97 3.06 2.07 0.128 0.52 1.22 1.88 1.28 0.156 0.29 2.2 3.4 2.3 0.116 0.114 0.49 1.3 2.01 1.36 0.14 0.137 0.29 2.16 3.34 2.26 0.16 0.158 0.51 1.23 1.9 1.29 0.206 0.201 0.28 2.28 3.53 2.39 0.138 0.135 0.41 1.55 2.39 1.62 0.157 0.153 0.28 2.28 3.53 2.39 0.255 0.251 0.48 1.32 2.05 1.39 0.334 0.326 0.25 2.55 3.94 2.67 0.217 0.213 0.38 1.64 2.53 1.72 0.256 0.25 0.26 2.40 3.72 2.52 0.383 0.377 0.44 1.42 2.2 1.49 0.496 0.485 0.23 2.71 4.2 2.84 0.317 0.312 0.37 1.69 2.61 1.77 0.392 0.382 0.25 2.48 3.84 2.60 0.5 0.492 0.46 1.37 2.13 1.44 0.671 0.653 B-79 Self-Aligning Ball Bearings NTN Cylindrical bore Tapered bore taper 1 12 d 40 75mm Boundary dimensions Basic load ratings Limiting speeds Bearing numbers Abutment and dynamic static dynamic static fillet dimensions mm kN kgf rpm mm cylindrical tapered2 da Da ras o d D B r min Cr Cor Cr Cor grease oil bore bore min max max 80 18 1.1 19.3 6.55 1 970 665 7 100 8 400 1208 1208K 46.5 73.5 1 80 23 1.1 22.3 7.35 2 270 750 6 700 7 900 2208 2208K 46.5 73.5 1 40 90 23 1.5 29.6 9.70 3 000 990 6 000 7 000 1308 1308K 48 82 1.5 90 33 1.5 45.0 13.5 4 600 1 380 5 600 6 600 2308 2308K 48 82 1.5 85 19 1.1 21.9 7.35 2 230 750 6 400 7 500 1209 1209K 51.5 78.5 1 85 23 1.1 23.2 8.15 2 360 830 6 000 7 100 2209 2209K 51.5 78.5 1 45 100 25 1.5 38.0 12.7 3 900 1 300 5 400 6 300 1309 1309K 53 92 1.5 100 36 1.5 54.0 16.7 5 500 1 700 5 000
