d 30-130mm
Product Parameter
Designation Mass
m
≈kg
Principal dimensions
mm
Fitting dimansion
mm
Basic load ratings
KN
Calculation coefficient Fatigue limit load
Cur/ N
Limiting Speed
(Matched Bearing)
nG
min–1
Reference Speed
(Matched Bearing)
nB
min–1
d D 2B 2T r3, r4
min
A da
max
Da
min
Da
max
Ca
min
rb
max
Dyc
Cr
Stc
Cor
e Y1 Y2 Y0
31317-N11CA-A120-160 10.4 85 180 82 89 3 33 103 143 166 6 3 435000 600000 0.83 0.82 1.22 0.8 68000 4200 2360
31318-N11CA-A120-160 11.8 90 190 86 93 3 33 109 151 176 6 3 470000 650000 0.83 0.82 1.22 0.8 71000 3900 2270
31318-N11CA-A160-200 11.8 90 190 86 93 3 33 109 151 176 6 3 470000 650000 0.83 0.82 1.22 0.8 71000 3900 2270
31319-A-N11CA-A120-160 14 95 200 90 99 3 35 114 157 186 6 3 520000 740000 0.83 0.82 1.22 0.8 79000 3650 2180
32020-X-N11CA-A200-230 4 100 150 64 64 1.5 16 109 134 141 6 1.5 295000 570000 0.46 1.47 2.19 1.44 67000 4500 2300
31320-A-N11CA-A120-160 19 100 215 102 113 3 43 121 168 201 7 3 660000 960000 0.83 0.82 1.22 0.8 102000 3100 2040
32222-A-N11CA-A50-280 14.9 110 200 106 112 2.5 20 126 170 188 5 2.5 710000 1180000 0.42 1.61 2.39 1.57 133000 3350 1910
31322-X-N11CA-A140-180 26.2 110 240 114 126 3 50 135 188 226 7 3 790000 1170000 0.83 0.82 1.22 0.8 141000 2800 1790
32224-A-N11CA-A230-280 19.1 120 215 116 123 2.5 23 136 181 203 7 2.5 830000 1450000 0.44 1.55 2.31 1.52 162000 3100 1700
31324-X-N11CA-A140-180 33.7 120 260 124 136 3 52 145 203 246 9 3 930000 1400000 0.83 0.82 1.22 0.8 165000 2500 1610
32026-X-N11CA-A200-250 10.3 130 200 90 90 2 22 144 178 190 8 2 560000 1100000 0.43 1.55 2.31 1.52 122000 3100 1870
31326-X-N11CA-A160-200 40.9 130 280 132 144 4 56 157 218 262 9 4 1050000 1590000 0.83 0.82 1.22 0.8 184000 2380 1460
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Introduction
features tapered roller bearing is composed of solid inner and outer rings with tapered raceway and tapered roller components with window cage. bearing forms are: ■ standard design ■ matching open variant design integrated design of single side seal, JK0S . open bearing is separable bearing. Therefore, the inner and outer rings with roller and cage assembly can be installed separately. provides metric and British bearings. The bearing with the letter k in the model is an English bearing. in the new design, please give priority to Metric tapered roller bearing. t7fc series tapered roller bearings belong to the design of X-life . The surface quality of these bearings has been further improved, and higher performance has been achieved through better materials, heat treatment and optimized contact geometry. This improves the friction characteristics and improves the basic dynamic load rating. under the same working conditions, the basic rated life of the bearing is significantly improved. This means that more compact bearing arrangements can be used in some applications. X-life please refer to the size table for bearings. tapered roller bearing can bear single direction axial load and high radial load. generally, two tapered roller bearings are used in symmetrical arrangement. bearing is of type o or x . Please refer to page 520 and figure 1 and figure 2 . the axial bearing capacity depends on the contact angle, that is, the larger the contact angle is, the greater the axial load the bearing can bear. the coefficient in the size table e indicates the size of bearing contact angle and bearing capacity. 313 , 323.. - B , t5ed and t7fc series bearings have large contact angle, so they have high axial bearing capacity. the improved contact line between the tapered roller and the inner and outer raceways optimizes the stress distribution at the contact point, prevents the generation of edge stress and allows the bearing not to center compensation. load ratio P / C R & le; 0.2 , the relative inclination angle of the bearing inner and outer rings cannot exceed 4 & prime;. if you need to bear more load or more tilt angle, please contact us. tapered roller bearing with suffix n11ca is a pair bearing of x type, which can bear large bidirectional axial load and moment load. the internal axial clearance of the matched bearing is set by the spacer between the two outer rings and expressed in the suffix, see page 529 . according to customer needs, we also provide o type matching bearing (n11cb) . when ordering bearings, you must specify the number of bearings, not the number of bearing pairs. tapered roller bearing JK0S is a one-sided sealed ready to install ready to use unit, mainly used for o layout