SKF 71930 ACD/P4AH1 Super Precision Angular Contact bearings

Bearing number:71930 C-UD; Size (mm):150x210x56(mm); Brand:CX; Bore Diameter (mm):150(mm); Outer Diameter (mm):210(mm); Width (mm):56(mm); d:150 mm 5.9055 in; D:210 mm 8.2677 in; B1:56 mm 2.2047 in; Angle (α):15 °; Weight:5 Kg; Basic dynamic load rating (C):187 kN; Basic static load rating (C0):263 kN; (Grease) Lubrication Speed:3700 r/min;

d:150 mm 5.9055 in; D:210 mm 8.2677 in; B:28 mm 1.1024 in; d₁:168.5 mm 6.6339 in; d₂:168.5 mm 6.6339 in; D₁:191.5 mm 7.5394 in; K:0.6 mm 0.0236 in; C₁:7.32 mm 0.2882 in; r_1,2 min.:2 mm 0.0787 in; r_3,4 min.:1 mm 0.0394 in; a:56.1 mm 2.2087 in; d_a min.:159 mm 6.2598 in; d_b min.:159 mm 6.2598 in; D_a max.:201 mm 7.9134 in; D_b max.:205 mm 8.0709 in; r_a max.:2 mm 0.0787 in; r_b max.:1 mm 0.0394 in; d_n:173.5 mm 6.8307 in; Basic dynamic load rating C:108 kN; Basic static load rating C₀:125 kN; Fatigue load limit P_u:3.9 kN; Attainable speed for grease lubrication:5600 r/min; Attainable speed for oil-air lubrication:8500 r/min; Ball diameter D_w:19.05 mm 0.75 in; Number of balls z:23; Reference grease quantity G_ref:35 cm³; Preload class A G_A:740 N; Static axial stiffness, preload class A:340 N/µm; Preload class B G_B:1480 N; Static axial stiffness, preload class B:447 N/µm; Preload class C G_C:2960 N; Static axial stiffness, preload class C:596 N/µm; Preload class D G_D:5920 N; Static axial stiffness, preload class D:814 N/µm; Calculation factor f:1.24; Calculation factor f₁:0.98; Calculation factor f_2A:1; Calculation factor f_2B:1.04; Calculation factor f_2C:1.08; Calculation factor f_2D:1.14; Calculation factor f_HC:1; Calculation factor e:0.68; Calculation factor (single, tandem) Y₂:0.87; Calculation factor (single, tandem) Y₀:0.38; Calculation factor (single, tandem) X₂:0.41; Calculation factor (back-to-back, face-to-face) Y₁:0.92; Calculation factor (back-to-back, face-to-face) Y₂:1.41; Calculation factor (back-to-back, face-to-face) Y₀:0.76; Calculation factor (back-to-back, face-to-face) X₂:0.67; Mass bearing:2.5 kg;

d:110 mm; D:170 mm; B:28 mm; d1:128.5 mm; d2:128.5 mm; D1:151.5 mm; r1,2 min.:2 mm; r3,4 min.:1 mm; a:46.8 mm; da min.:119 mm; db min.:119 mm; Da max.:161 mm; Db max.:165 mm; ra max.:2 mm; rb max.:1 mm; Basic dynamic load rating C:104 kN; Basic static load rating C0:104 kN; Fatigue load limit Pu:3.7

d:25 mm; D:42 mm; B:9 mm; d1:30.6 mm; d2:30.6 mm; D2:39.15 mm; r1,2 min.:0.3 mm; r3,4 min.:0.2 mm; a:12.4 mm; da min.:27 mm; da max.:30.1 mm; db min.:27 mm; db max.:30.1 mm; Da max.:40 mm; Db max.:40.6 mm; ra max.:0.3 mm; rb max.:0.2 mm; Basic dynamic load rating C:6.37 kN; Basic static load rating

d:80 mm; D:125 mm; B:22 mm; d1:93.9 mm; d2:93.9 mm; D1:111.1 mm; r1,2 min.:1.1 mm; r3,4 min.:0.6 mm; a:35 mm; da min.:86 mm; db min.:86 mm; Da max.:119 mm; Db max.:121 mm; ra max.:1 mm; rb max.:0.6 mm; Basic dynamic load rating C:62.4 kN; Basic static load rating C0:58.5 kN; Fatigue load limit Pu:2.

d:25 mm; D:47 mm; B:12 mm; d1:31.6 mm; d2:29.8 mm; D1:39.21 mm; r1,2 min.:0.6 mm; r3,4 min.:0.3 mm; a:14.4 mm; da min.:28.2 mm; db min.:28.2 mm; Da max.:43.8 mm; Db max.:44.6 mm; ra max.:0.6 mm; rb max.:0.3 mm; Basic dynamic load rating C:7.93 kN; Basic static load rating C0:3.9 kN; Fatigue load lim

d:25 mm; D:42 mm; B:9 mm; d1:30.6 mm; d2:30.6 mm; D1:36.4 mm; r1,2 min.:0.3 mm; r3,4 min.:0.2 mm; a:9 mm; da min.:27 mm; db min.:27 mm; Da max.:40 mm; Db max.:40.6 mm; ra max.:0.3 mm; rb max.:0.2 mm; Basic dynamic load rating C:6.76 kN; Basic static load rating C0:4 kN; Fatigue load limit Pu:0.17 kN

d:50 mm; D:80 mm; B:16 mm; d1:60.25 mm; d2:57.9 mm; D1:69.75 mm; r1,2 min.:1 mm; r3,4 min.:0.6 mm; a:16.8 mm; da min.:54.6 mm; db min.:54.6 mm; Da max.:75.4 mm; Db max.:75.8 mm; ra max.:1 mm; rb max.:0.6 mm; Basic dynamic load rating C:15.6 kN; Basic static load rating C0:10.6 kN; Fatigue load limit

d:20 mm; D:37 mm; B:9 mm; d1:25.6 mm; d2:25.6 mm; D2:34.15 mm; r1,2 min.:0.3 mm; r3,4 min.:0.2 mm; a:8.4 mm; da min.:22 mm; da max.:25.1 mm; db min.:22 mm; db max.:25.1 mm; Da max.:35 mm; Db max.:35.6 mm; ra max.:0.3 mm; rb max.:0.2 mm; Basic dynamic load rating C:6.05 kN; Basic static load rating C

d:20 mm; D:37 mm; B:9 mm; d1:25.6 mm; d2:25.6 mm; D1:31.4 mm; r1,2 min.:0.3 mm; r3,4 min.:0.2 mm; a:11.2 mm; da min.:22 mm; db min.:22 mm; Da max.:35 mm; Db max.:35.6 mm; ra max.:0.3 mm; rb max.:0.2 mm; Basic dynamic load rating C:5.72 kN; Basic static load rating C0:3.05 kN; Fatigue load limit Pu:0

d:20 mm; D:42 mm; B:12 mm; d1:26.6 mm; d2:24.8 mm; D1:34.21 mm; r1,2 min.:0.6 mm; r3,4 min.:0.3 mm; a:13.2 mm; da min.:22 mm; db min.:22 mm; Da max.:40 mm; Db max.:39.6 mm; ra max.:0.6 mm; rb max.:0.3 mm; Basic dynamic load rating C:7.15 kN; Basic static load rating C0:3.25 kN; Fatigue load limit Pu

d:40 mm; D:62 mm; B:12 mm; d1:46.5 mm; d2:44.8 mm; D1:54.15 mm; b:2 mm; C1:5.9 mm; C2:1.8 mm; C3:1.8 mm; r1,2 min.:0.6 mm; r3,4 min.:0.3 mm; a:18.6 mm; da min.:43.2 mm; db min.:42 mm; Da max.:58.8 mm; Db max.:60 mm; ra max.:0.6 mm; rb max.:0.3 mm; dn:48 mm; Basic dynamic load rating C:9.23 kN; Basic

d:55 mm; D:90 mm; B:18 mm; d1:67.73 mm; d2:65.6 mm; D1:77.25 mm; b:1.6 mm; C1:5.65 mm; C2:3.4 mm; C3:3.4 mm; r1,2 min.:1.1 mm; r3,4 min.:0.6 mm; a:18.8 mm; da min.:61 mm; db min.:61 mm; Da max.:84 mm; Db max.:85.8 mm; ra max.:1 mm; rb max.:0.6 mm; dn:69.6 mm; Basic dynamic load rating C:16.8 kN; Bas

d:35 mm; D:55 mm; B:10 mm; d1:41.6 mm; d2:41.6 mm; D2:50.07 mm; r1,2 min.:0.6 mm; r3,4 min.:0.3 mm; a:15.6 mm; da min.:38.2 mm; da max.:41.1 mm; db min.:38.2 mm; db max.:41.1 mm; Da max.:51.8 mm; Db max.:53.6 mm; ra max.:0.6 mm; rb max.:0.3 mm; Basic dynamic load rating C:9.23 kN; Basic static load

d:120 mm; D:180 mm; B:28 mm; d1:138.5 mm; d2:138.5 mm; D1:161.5 mm; b:2.8 mm; C1:15 mm; C2:6.2 mm; C3:5.4 mm; r1,2 min.:2 mm; r3,4 min.:1 mm; a:34.2 mm; da min.:129 mm; db min.:129 mm; Da max.:171 mm; Db max.:175 mm; ra max.:2 mm; rb max.:1 mm; dn:142.6 mm; Basic dynamic load rating C:114 kN; Basic

d:70 mm; D:110 mm; B:20 mm; d1:82.3 mm; d2:82.3 mm; D2:100.64 mm; r1,2 min.:1.1 mm; r3,4 min.:0.6 mm; a:22.1 mm; da min.:76 mm; da max.:81.7 mm; db min.:76 mm; db max.:81.7 mm; Da max.:104 mm; Db max.:106 mm; ra max.:1 mm; rb max.:0.6 mm; Basic dynamic load rating C:52 kN; Basic static load rating C

d:90 mm; D:140 mm; B:24 mm; d1:108.33 mm; d2:105.5 mm; D2:125.2 mm; r1,2 min.:1.5 mm; r3,4 min.:1 mm; a:27.5 mm; da min.:97 mm; da max.:107.6 mm; db min.:97 mm; db max.:104.8 mm; Da max.:133 mm; Db max.:134.4 mm; ra max.:1.5 mm; rb max.:1 mm; Basic dynamic load rating C:35.8 kN; Basic static load ra