SKF 71909 CB/P4AL super-precision Angular contact ball bearings

Bearing number:B71909-C-T-P4S; Size (mm):45x68x12(mm); Brand:FAG; Bore Diameter (mm):45(mm); Outer Diameter (mm):68(mm); Width (mm):12(mm); d:45 mm 1.7717 in; D:68 mm 2.6772 in; B:12 mm 0.4724 in; a:14 mm 0.5512 in; D_a:63,5 mm / Tolerance: H12 2.5 in; d_a:50 mm / Tolerance: h12 1.9685 in; r_{1 min}:0,6 mm 0.0236 in; r_{a max}:0,6 mm 0.0236 in; r_{a1 max}:0,6 mm 0.0236 in; r_min:0,6 mm 0.0236 in; α:15 ° / Angle; m:0,117 kg / Weight; C_r:19100 N / Dynamic load rating (radial); C_0r:11200 N / Static load rating (radial); n_{G Fett}:20000 1/min / Limiting speed for grease lubrication; n_{G Ol}:32000 1/min / Limiting speed for minimal quantity oil lubrication;

d:45 mm 1.7717 in; D:68 mm 2.6772 in; B:12 mm 0.4724 in; d₁:53.45 mm 2.1043 in; d₂:52.4 mm 2.063 in; D₂:61.8 mm 2.4331 in; b:2 mm 0.0787 in; C₁:5.9 mm 0.2323 in; C₂:2.8 mm 0.1102 in; C₃:1.7 mm 0.0669 in; r_1,2 min.:0.6 mm 0.0236 in; r_3,4 min.:0.3 mm 0.0118 in; a:16.1 mm 0.6339 in; d_a min.:48.2 mm 1.8976 in; d_b min.:48.2 mm 1.8976 in; D_a max.:64.8 mm 2.5512 in; D_b max.:66 mm 2.5984 in; r_a max.:0.6 mm 0.0236 in; r_b max.:0.3 mm 0.0118 in; d_n:54.2 mm 2.1339 in; Basic dynamic load rating C:9.95 kN; Basic static load rating C₀:9.65 kN; Fatigue load limit P_u:0.245 kN; Attainable speed for grease lubrication:28000 r/min; Attainable speed for oil-air lubrication:43000 r/min; Ball diameter D_w:4.762 mm 0.1875 in; Number of balls z:27; Reference grease quantity G_ref:1.75 cm³; Preload class A G_A:24 N; Static axial stiffness, preload class A:28 N/µm; Preload class B G_B:48 N; Static axial stiffness, preload class B:37 N/µm; Preload class C G_C:145 N; Static axial stiffness, preload class C:60 N/µm; Calculation factor f:1.08; Calculation factor f₁:1; Calculation factor f_2A:1; Calculation factor f_2B:1.02; Calculation factor f_2C:1.07; Calculation factor f_HC:1; Calculation factor f₀:9.7; Mass bearing:0.13 kg;

d:30 mm; D:55 mm; B:13 mm; d1:38.2 mm; d2:36.4 mm; D1:45.81 mm; r1,2 min.:1 mm; r3,4 min.:0.6 mm; a:12.2 mm; da min.:34.6 mm; db min.:34.6 mm; Da max.:50.4 mm; Db max.:50.8 mm; ra max.:1 mm; rb max.:0.6 mm; Basic dynamic load rating C:9.36 kN; Basic static load rating C0:5.2 kN; Fatigue load limit P

d:55 mm; D:80 mm; B:13 mm; d1:62.7 mm; d2:62.7 mm; D1:72.3 mm; r1,2 min.:1 mm; r3,4 min.:0.3 mm; a:22.4 mm; da min.:59.6 mm; db min.:59.6 mm; Da max.:75.4 mm; Db max.:78 mm; ra max.:1 mm; rb max.:0.3 mm; Basic dynamic load rating C:18.2 kN; Basic static load rating C0:13.7 kN; Fatigue load limit Pu:

d:30 mm; D:55 mm; B:13 mm; d1:37.7 mm; d2:37.7 mm; D1:47.3 mm; r1,2 min.:1 mm; r3,4 min.:0.3 mm; a:16.6 mm; da min.:34.6 mm; db min.:34.6 mm; Da max.:50.4 mm; Db max.:53 mm; ra max.:1 mm; rb max.:0.3 mm; Basic dynamic load rating C:13.8 kN; Basic static load rating C0:7.65 kN; Fatigue load limit Pu:

d:65 mm; D:100 mm; B:18 mm; d1:77.26 mm; d2:74.9 mm; D1:87.72 mm; r1,2 min.:1.1 mm; r3,4 min.:0.6 mm; a:20.2 mm; da min.:71 mm; db min.:71 mm; Da max.:94 mm; Db max.:95.8 mm; ra max.:1 mm; rb max.:0.6 mm; Basic dynamic load rating C:20.3 kN; Basic static load rating C0:15.6 kN; Fatigue load limit Pu

d:45 mm; D:75 mm; B:16 mm; d1:55.7 mm; d2:53.6 mm; D1:64.25 mm; r1,2 min.:1 mm; r3,4 min.:0.6 mm; a:22.2 mm; da min.:49.6 mm; db min.:49.6 mm; Da max.:70.4 mm; Db max.:70.8 mm; ra max.:1 mm; rb max.:0.6 mm; Basic dynamic load rating C:12.1 kN; Basic static load rating C0:8.15 kN; Fatigue load limit

d:90 mm; D:140 mm; B:24 mm; d1:108.33 mm; d2:105.5 mm; D1:121.66 mm; r1,2 min.:1.5 mm; r3,4 min.:1 mm; a:27.5 mm; da min.:97 mm; db min.:97 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 rating C0:32 kN; Fatigue load limit P

d:110 mm; D:170 mm; B:28 mm; d1:128.5 mm; d2:128.5 mm; D2:155.15 mm; r1,2 min.:2 mm; r3,4 min.:1 mm; a:32.9 mm; da min.:119 mm; da max.:127.9 mm; db min.:119 mm; db max.:127.9 mm; Da max.:161 mm; Db max.:165 mm; ra max.:2 mm; rb max.:1 mm; Basic dynamic load rating C:111 kN; Basic static load rating

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; D2:72.9 mm; r1,2 min.:1 mm; r3,4 min.:0.6 mm; a:16.8 mm; da min.:54.6 mm; da max.:59.7 mm; db min.:54.6 mm; db max.:57.3 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 rati

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:8.4 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:6.05 kN; Basic static load rating C0:3.2 kN; Fatigue load limit Pu:0.1

d:60 mm; D:95 mm; B:18 mm; d1:70.8 mm; d2:70.8 mm; D1:84.2 mm; r1,2 min.:1.1 mm; r3,4 min.:0.6 mm; a:19.4 mm; da min.:66 mm; db min.:66 mm; Da max.:89 mm; Db max.:91.8 mm; ra max.:1 mm; rb max.:0.6 mm; Basic dynamic load rating C:40.3 kN; Basic static load rating C0:34.5 kN; Fatigue load limit Pu:1.

d:75 mm; D:115 mm; B:20 mm; d1:87.3 mm; d2:87.3 mm; D1:102.7 mm; K:0.5 mm; C1:5.4 mm; r1,2 min.:1.1 mm; r3,4 min.:0.6 mm; a:22.8 mm; da min.:81 mm; db min.:81 mm; Da max.:109 mm; Db max.:111 mm; ra max.:1 mm; rb max.:0.6 mm; dn:90 mm; Basic dynamic load rating C:52.7 kN; Basic static load rating C0:

d:90 mm; D:140 mm; B:24 mm; d1:105.4 mm; d2:105.4 mm; D1:124.6 mm; r1,2 min.:1.5 mm; r3,4 min.:1 mm; a:39 mm; da min.:97 mm; db min.:97 mm; Da max.:133 mm; Db max.:136 mm; ra max.:1.5 mm; rb max.:1 mm; Basic dynamic load rating C:74.1 kN; Basic static load rating C0:72 kN; Fatigue load limit Pu:2.85

d:80 mm; D:125 mm; B:22 mm; d1:93.9 mm; d2:93.9 mm; D2:113.95 mm; r1,2 min.:1.1 mm; r3,4 min.:0.6 mm; a:24.8 mm; da min.:86 mm; da max.:93.3 mm; db min.:86 mm; db max.:93.3 mm; Da max.:119 mm; Db max.:121 mm; ra max.:1 mm; rb max.:0.6 mm; Basic dynamic load rating C:65 kN; Basic static load rating C

d:30 mm; D:47 mm; B:9 mm; d1:35.6 mm; d2:35.6 mm; D1:41.4 mm; r1,2 min.:0.3 mm; r3,4 min.:0.2 mm; a:9.7 mm; da min.:32 mm; db min.:32 mm; Da max.:45 mm; Db max.:45.6 mm; ra max.:0.3 mm; rb max.:0.2 mm; Basic dynamic load rating C:7.15 kN; Basic static load rating C0:4.55 kN; Fatigue load limit Pu:0.