KOYO Bearing

KOYO tapered roller bearings 31328JR

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)

139.700   5.5000 228.600 9.0000 57.150 2.2500 57.150 2.2500 44.450 1.7500 6.4 3.2 898A/892 1   552 730 87.3 50.6 158 158 217 201 214 6 12.7 6.4 3.2 0.42 1.43 0.78 8.66
5.5000 236.538 9.3125 57.150 2.2500 56.642 2.2300 44.450 1.7500 3.6 3.2 HM231132/HM231110 1   628 832 98.8 45.2 152 168 225 213 222 8 12.7 3.6 3.2 0.32 1.88 1.04 10.1
5.5000 254.000 10.0000 66.675 2.6250 66.675 2.6250 47.625 1.8750 7.1 3.2 99550/99100 1   690 913 107 55.0 159 174 242 223 236 8 19.1 7.1 3.2 0.41 1.47 0.81 14.1
5.5000 295.275 11.6250 82.550 3.2500 87.313 3.4375 57.150 2.2500 9.5 6.4 HH231649/HH231615 1   1 020 1 090 130 56.3 164 176 277 252 264 11 25.4 9.5 6.4 0.32 1.88 1.04 24.9
140 190 32 32          — 25          — 2 1.5 32928JR 1   258 390 53.2 33.6 150 150 181 174 184 6 7 2 1.5 0.36 1.67 0.92 2.57
210   45   45           — 34          — 2.5 2 32028JR 1   435 585 79.2 45.6 152 153 200 187 202 8 11 2 2 0.46 1.31 0.72 5.28
  210   56   56          — 44           — 2.5 2 33028JR 1   510 758 90.9 45.6 152 152 200 186 202 7 12 2 2 0.36 1.67 0.92 6.61
140.000   5.5118 215.000 8.4646 47.625 1.8750 47.625 1.8750 34.925 1.3750 3.6 3.2 74551X/74846X 1   403 549 66.1 49.7 153 156 203 193 204 5 12.7 3.6 3.2 0.49 1.23 0.68 5.74
140 250 71.75 68          — 58          — 4 3 32228JR 1   796 961 112 60.0 158 158 236 210 238 9 13.5 3 2.5 0.44 1.38 0.76 14.7
300 77 70          — 47           — 5 4 31328JR 1   841 865 99.1 93.8 162 167 282 254 280 8 26 4 3 0.83 0.73 0.40 23.3
142.875   5.6250 193.675 7.6250 28.575 1.1250 28.575 1.1250 23.020 0.9063 1.6 1.6 36686/36620 1   234 375 50.6 33.7 152 158 185 179 185 5.5 5.6 1.6 1.6 0.37 1.63 0.90 2.41
5.6250 200.025 7.8750 41.275 1.6250 39.688 1.5625 34.130 1.3437 3.6 3.3 48685/48620 1   307 491 66.5 38.4 156 157 188 182 190 4 7.1 3.6 3.3 0.34 1.78 0.98 3.84
5.6250 222.250 8.7500 34.925 1.3750 31.623 1.2450 23.813 0.9375 3.6 3.2 73562/73875 1   263 302 40.8 41.9 156 163 210 197 204 4 11.1 3.6 3.2 0.44 1.37 0.75 4.15
5.6250 241.300 9.5000 57.150 2.2500 56.642 2.2300 44.450 1.7500 3.6 3.2 HM231136/HM231115 1   628 832 98.8 45.2 156 168 229 213 222 8 12.7 3.6 3.2 0.32 1.88 1.04 10.4
146.050   5.7500 193.675 7.6250 28.575 1.1250 28.575 1.1250 23.020 0.9063 1.6 1.6 36690/36620 1   234 375 50.6 33.7 155 158 185 179 185 5.5 5.6 1.6 1.6 0.37 1.63 0.90 2.25
5.7500 193.675 7.6250 28.575 1.1250 28.575 1.1250 23.020 0.9063 4.8 1.6 36691/36620 1   234 375 50.6 33.7 161 158 185 179 185 5.5 5.6 4.8 1.6 0.37 1.63 0.90 2.23
5.7500 236.538 9.3125 57.150 2.2500 56.642 2.2300 44.450 1.7500 3.6 3.2 HM231140/HM231110 1   628 832 98.8 45.2 159 168 225 213 222 8 12.7 3.6 3.2 0.32 1.88 1.04 9.45
5.7500 241.300 9.5000 57.150 2.2500 56.642 2.2300 44.450 1.7500 3.6 3.2 82576/82950 1   527 728 85.3 53.4 159 169 229 211 224 7 12.7 3.6 3.2 0.44 1.36 0.75 10.0
5.7500 268.288 10.5625 74.613 2.9375 74.613 2.9375 57.150 2.2500 6.4 6.4 EE107057/107105 1   825 1 050 120 59.4 164 178 250 234 249 8 17.5 6.4 6.4 0.39 1.55 0.85 17.9
5.7500 304.800 12.0000 88.900 3.5000 82.550 3.2500 57.150 2.2500 6.4 6.4 HH932145/HH932110 1   987 1 060 119 92.1 164 178 287 259 287 7 31.8 6.4 6.4 0.73 0.82 0.45 26.9
149.225   5.8750 236.538 9.3125 57.150 2.2500 56.642 2.2300 44.450 1.7500 3.6 3.2 82587/82931 1   527 728 85.3 53.4 162 169 225 211 224 7 12.7 3.6 3.2 0.44 1.36 0.75 9.07
5.8750 236.538 9.3125 57.150 2.2500 56.642 2.2300 44.450 1.7500 6.4 3.2 HM231148/HM231110 1   628 832 98.8 45.2 167 168 225 213 222 8 12.7 6.4 3.2 0.32 1.88 1.04 9.10
5.8750 236.538 9.3125 57.150 2.2500 56.642 2.2300 44.450 1.7500 3.6 3.2 HM231149/HM231110 1   628 832 98.8 45.2 162 168 225 213 222 8 12.7 3.6 3.2 0.32 1.88 1.04 9.13
150 210 38 38          — 30          — 2.5 2 32930JR 1   358 536 72.1 36.1 162 163 200 194 202 7 8 2 2 0.33 1.83 1.01 3.96
225   48           — 48           — 36          — 3 2.5 32030JR 1   492 668 79.6 48.8 164 164 213 200 216 8 12 2.5 2 0.46 1.31 0.72 6.41

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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