KOYO Bearing

KOYO tapered roller bearings 68450/68712

KOYO BEARING

Tapered roller bearings

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KOYO BEARING

Boundary dimensions

d                           D                       T                     B                     C              r

mm         1/25.4           mm       1/25.4         mm     1/25.4        mm     1/25.4        mm     1/25.4    min.

 

r1    min.

 

Bearing No. 1)

De-   sign   Basic load ratings

(kN)

Cr              C0r

Fatigue   load limit

(kN)

Cu

Load

center (mm)

a

 

da

min.

 

db    max.

Mounting dimensions

(mm)

Da                       Db           Sa

max.      min.       min.     min.

 

Sb    min.

 

ra     max.

 

rb     max.

Con-

stant

e

Axial load factors

Y1            Y0

(Refer.)

Mass

(kg)

105 160 35 35 26 2.5 2 32021JR 1   270 344 49.9 34.5 117 116 150 143 154 6 9 2 2 0.44 1.35 0.74 2.45
  160   43   43   34   2.5 2 33021JR 1   335 461 67.4 30.9 117 116 150 145 153 7 9 2 2 0.28 2.12 1.17 3.08
  190   39   36   30   3 2.5 30221JR 1   360 380 52.3 39.0 119 122 178 165 178 6 9 2.5 2 0.42 1.43 0.79 4.49
  190 53 50 43 3 2.5 32221JR 1   490 567 73.0 44.8 119 120 178 161 180 6 10 2.5 2 0.42 1.43 0.79 6.37
  225   58   53   36   4 3 31321JR 1   495 489 59.4 70.3 123 126 211 193 211 6 18 3 2.5 0.83 0.73 0.40 9.72
106.362 4.1875 165.100 6.5000 36.513 1.4375 36.513 1.4375 26.988 1.0625 3.6 3.2 56418/56650 1   231 300 42.9 38.5 119 120 153 148 157 5.5 9.5 3.6 3.2 0.50 1.21 0.66 2.65
107.950 4.2500 158.750 6.2500 23.020 0.9063 21.438 0.8440 15.875 0.6250 3.6 3.2 37425/37625 1   130 169 23.9 36.5 121 121 147 141 148 4.3 7.1 3.6 3.2 0.61 0.99 0.54 1.38
  4.2500 161.925 6.3750 34.925 1.3750 34.925 1.3750 26.988 1.0625 3.6 3.2 48190/48120 1   216 293 41.8 39.1 121 120 150 145 154 4.2 7.9 3.6 3.2 0.51 1.19 0.65 2.39
  4.2500 165.100 6.5000 36.513 1.4375 36.513 1.4375 26.988 1.0625 3.6 3.2 56425/56650 1   231 300 42.9 38.5 121 120 153 148 157 5.5 9.5 3.6 3.2 0.50 1.21 0.66 2.57
  4.2500 190.500 7.5000 47.625 1.8750 49.212 1.9375 34.925 1.3750 3.6 3.2 71425/71750 1   381 483 60.9 40.9 121 131 179 167 177 6.4 12.7 3.6 3.2 0.42 1.44 0.79 5.48
  4.2500 212.725 8.3750 66.675 2.6250 66.675 2.6250 53.975 2.1250 7.9 3.2 HH224340/HH224310 1   641 699 87.1 47.6 129 134 201 189 201 7 12.7 7.9 3.2 0.33 1.84 1.01 10.2
109.987 4.3302 159.987 6.2987 34.925 1.3750 34.925 1.3750 26.988 1.0625 7.9 3.2 LM522548/LM522510 1   231 319 45.8 32.9 131 121 148 146 153 5.5 7.9 7.9 3.2 0.40 1.50 0.82 2.30
  4.3302 159.987 6.2987 34.925 1.3750 34.925 1.3750 26.988 1.0625 3.6 3.2 LM522549/LM522510 1   231 319 45.8 32.9 123 121 148 146 153 5.5 7.9 3.6 3.2 0.40 1.50 0.82 2.33
110 150 25 25 20 1.5 1.5 32922JR 1   162 231 33.3 26.3 119 118 141 138 145 5 5 1.5 1.5 0.36 1.69 0.93 1.28
110.000 4.3307 165.000 6.4961 35.000 1.3780 35.000 1.3780 26.500 1.0433 3.0 2.5 JM822049/JM822010 1   245 325 46.3 38.1 121 121 155 148 157 4.8 8.5 3.0 2.5 0.50 1.21 0.66 2.44
110 170 38 38 29 2.5 2 32022JR 1   312 395 56.7 36.1 122 122 160 152 163 7 9 2 2 0.43 1.39 0.77 3.12
  170   47   47   37   2.5 2 33022JR 1   360 502 64.9 33.4 122 123 160 152 161 7 10 2 2 0.29 2.09 1.15 3.81
110.000 4.3307 180.000 7.0866 47.000 1.8504 46.000 1.8110 38.000 1.4961 3.0 2.5 JHM522649/JHM522610 1   385 487 62.3 40.6 121 125 170 160 171 6 9 3.0 2.5 0.41 1.48 0.81 4.57
110 180 56 56 43 2.5 2 33122JR 1   464 634 78.6 44.5 122 121 170 155 174 9 13 2 2 0.42 1.43 0.79 5.52
  200   41   38   32   3 2.5 30222JR 1   405 434 58.1 40.8 124 129 188 174 188 6 9 2.5 2 0.42 1.43 0.79 5.33
  200 56 53 46 3 2.5 32222JR 1   547 640 80.4 46.7 124 126 188 170 190 6 10 2.5 2 0.42 1.43 0.79 7.45
  240 54.5 50 42 4 3 30322JR 1   601 590 75.2 46.3 128 141 226 206 222 8 12.5 3 2.5 0.35 1.74 0.96 11.4
114.300 4.5000 180.975 7.1250 34.925 1.3750 31.750 1.2500 25.400 1.0000 3.6 3.2 68450/68712 1   216 247 35.1 40.6 127 131 169 161 169 2.5 9.5 3.6 3.2 0.50 1.21 0.66 2.92
  4.5000 190.500 7.5000 47.625 1.8750 49.212 1.9375 34.925 1.3750 3.6 3.2 71450/71750 1   381 483 60.9 40.9 127 131 179 167 177 6.4 12.7 3.6 3.2 0.42 1.44 0.79 5.05

CMTG BEARING CO.,LIMITED.  has been engaged in bearing industry for many years, we provide a wide selections of brands, including FAG bearingSKF bearing,NSK bearing,Nachi bearing, TIMKEN bearing, THK Linear Guide and Linear Block …ect.

Bearing typies including standard bearing and non-standard bearings, linear bearings, automotive bearings, large bearings, railway bearings,spherical plain bearings, high temperature,super-precision bearings, as well as some rare types customized to your need.

Contact us if any bearing in demand . we will check and revert ASAP.

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