d 40-50mm
Product Parameter
Designation Interchangeable dimensions to
ISO355
X-life Mass/ m
≈kg
Principal dimensions
mm
Fitting dimansion
mm
Basic load ratings
KN
Calculation coefficient Fatigue limit load
Cur/ N
Limiting Speed
nG
min–1
Reference Speed
nB
min–1
d D B C T r1, r2
min
r3, r4
min
a
d1
da
max
db
min
Da
min
Da
max
Db
min
Ca
min
Cb
min
ra
max
rb
max
Dyc
Cr
Stc
Cor
e Y Y0
32008-XA T3CD040 - 0.312 40 68 19 14.5 19 1 1 15 55 46 46 60 62 65 4 4.5 1 1 53000 71000 0.38 1.58 0.87 8300 9800 6200
33108 T2CE040 - 0.541 40 75 26 20.5 26 1.5 1.5 18 58.7 47 47 65 68 71 4 5.5 1.5 1.5 79000 103000 0.36 1.69 0.93 12800 8800 5500
30208-A T3DB040 - 0.435 40 80 18 16 19.75 1.5 1.5 17 58.4 49 47 69 73 74 3 3.5 1.5 1.5 61000 67000 0.37 1.6 0.88 7600 8800 5900
32208-A T3DC040 - 0.551 40 80 23 19 24.75 1.5 1.5 19 59.2 48 47 68 73 75 3 5.5 1.5 1.5 79000 93000 0.37 1.6 0.88 11200 8800 5300
33208 T2DE040 - 0.741 40 80 32 25 32 1.5 1.5 21 60.1 47 47 67 73 76 5 7 1.5 1.5 105000 134000 0.36 1.68 0.92 16600 8400 5700
T2EE040 - - 0.881 40 85 32.5 28 33 2.5 2 22 61.9 48 51 70 75 80 6 5 2.5 2 114000 139000 0.34 1.74 0.96 17000 8400 5600
31308-A T7FB040 - 0.727 40 90 23 17 25.25 2 1.5 30 68.2 51 49 71 81 86 4 8 2 1.5 76000 83000 0.83 0.73 0.4 9400 7400 5200
30308-A T2FB040 - 0.812 40 90 23 20 25.25 2 1.5 20 63.3 52 49 77 81 82 3 5 2 1.5 91000 102000 0.35 1.74 0.96 11900 7800 5800
32308-A T2FD040 - 1.06 40 90 33 27 35.25 2 1.5 23 63.3 50 49 73 81 82 4 8 2 1.5 120000 146000 0.35 1.74 0.96 17900 7800 5600
32308-B - - 1.18 40 90 33 27 35.25 2 1.5 28 67 50 49 69 81 85 4 8 2 1.5 120000 149000 0.55 1.1 0.6 18100 7400 5500
32009-XA T3CC045 - 0.329 45 75 20 15.5 20 1 1 17 62 51 51 67 69 72 4 4.5 1 1 61000 86000 0.39 1.53 0.84 10200 8800 5500
33109 T3CE045 - 0.597 45 80 26 20.5 26 1.5 1.5 19 63.8 52 52 69 73 77 4 5.5 1.5 1.5 84000 115000 0.38 1.57 0.86 14400 8400 5000
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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