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SRBF Bearing > CATALOGUES > Four-point contact ball bearing> QJ series> 300 Series

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300 Series

 
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300 Series
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  • 300 Series



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Principal dimensions （mm)

Basic load ratings KN

Pu

Speed ratings rpm

Weight kg

Designation

Dimensions mm

Locating slots dimensions mm

Abutment and fillet dimensions mm

d

D

B

dyc Cr

stc Cor

Limiting Speed

Speed Ratings

Limiting Speed

Bearings with locating slots

Without locating slots

d

d1 ～

D1 ～

r1,2 Min

a

b

h

ro

da Min

Da Max

ra Max
SRBF 17 47 14 23.4 15 0.64 17000 28000 0.14 QJ303N2MA - 17 27.7 36.3 1 22 4.5 3.5 0.5 22.6 41.4 1
SRBF 20 52 15 29.6 20 0.85 15000 24000 0.18 QJ304N2MA QJ304MA 20 31.2 40.8 1.1 25 4.5 3.5 0.5 27 45 1
SRBF 25 62 17 39 28 1.18 12000 20000 0.29 QJ305N2MA QJ305MA 25 38 49 1.1 30 4.5 3.5 0.5 32 55 1
SRBF 30 72 19 49.4 38 1.63 10000 17000 0.42 QJ306N2MA QJ306MA 30 45.8 58.2 1.1 36 4.5 3.5 0.5 37 65 1
SRBF 35 80 21 59.2 46.5 1.96 9500 15000 0.57 QJ307N2MA QJ307MA 35 50.7 64.3 1.5 40 5.5 4 0.5 44 71 1.5
SRBF 40 90 23 71.5 58.5 2.45 8500 14000 0.78 QJ308N2MA QJ308MA 40 57.5 72.5 1.5 46 5.5 4 0.5 49 81 1.5
SRBF 45 100 25 93.6 76.5 3.25 7500 12000 1.05 QJ309N2MA QJ309MA 45 63.8 81.2 1.5 51 6.5 5 0.5 54 91 1.5
SRBF 50 110 27 111 91.5 3.9 6700 11000 1.35 QJ310N2MA QJ310MA 50 70 90 2 56 - - - 61 99 2
SRBF 55 120 29 127 108 4.55 6000 10000 1.75 QJ311N2MA QJ311MA 55 77.2 97.8 2 61 6.5 8.1 0.5 66 109 2
SRBF 60 130 31 146 125 5.3 5600 9000 2.15 QJ312N2MA QJ312MA 60 84 106 2.1 67 6.5 8.1 0.5 72 118 2
SRBF 65 140 33 165 146 6.1 5300 8500 2.70 QJ313N2MA QJ313MA 65 90 115 2.1 72 - - - 77 128 2
SRBF 70 150 35 186 166 6.7 4800 8000 3.15 QJ314N2MA QJ314MA 70 97.3 123 2.1 77 8.5 10.1 2 82 138 2
SRBF 75 160 37 199 186 7.35 4500 7500 3.90 QJ315N2MA - 75 104 131 2.1 82 8.5 10.1 2 87 148 2
SRBF 80 170 39 216 208 8 4300 7000 4.60 QJ316N2MA - 80 111 139 2.1 88 8.5 10.1 2 92 158 2
SRBF 85 180 41 234 236 8.65 4000 6700 5.45 QJ317N2MA - 85 117 148 3 93 10.5 11.7 2 99 166 2.5
SRBF 90 190 43 265 285 10.2 3800 6300 6.45 QJ318N2MA - 90 124 156 3 98 10.5 11.7 2 104 176 2.5
SRBF 95 200 45 286 315 11 3600 6000 7.45 QJ319N2MA - 95 131 165 3 103 10.5 11.7 2 109 186 2.5
SRBF 100 215 47 307 340 11.6 3400 5600 9.30 QJ320N2MA - 100 139 176 3 110 10.5 11.7 2 114 201 2.5
SRBF 110 240 50 390 475 15 3000 4800 12.5 QJ322N2MA - 110 154 196 3 123 10.5 11.7 2 124 226 2.5
SRBF 120 260 55 390 490 15 2800 4500 16.0 QJ324N2MA - 120 169 211 3 133 10.5 11.7 2 134 246 2.5
SRBF 130 280 58 423 560 16.6 2600 4000 19.5 QJ326N2MA - 130 182 227 4 144 10.5 12.7 2 147 263 3
SRBF 140 300 62 468 640 18.6 2400 3800 24.0 QJ328N2MA - 140 196 244 4 154 10.5 12.7 2 157 283 3
SRBF 150 320 65 494 710 19.6 2200 3600 29.0 QJ330N2MA - 150 211 259 4 165 10.5 12.7 2 167 303 3
SRBF 160 340 68 540 815 21.6 2000 3400 34.5 QJ332N2MA - 160 224 276 4 175 10.5 12.7 2 177 323 3
SRBF 170 360 72 618 965 25 1900 3200 41.5 QJ334N2MA - 170 237 293 4 186 10.5 12.7 2 187 343 3
SRBF 180 380 75 637 1020 26 1800 3000 47.5 QJ336N2MA - 180 252 309 4 196 10.5 12.7 2 197 363 3
SRBF 190 400 78 702 1160 28.5 1700 2800 49.0 QJ338N2MA - 190 263 326 5 207 10.5 12.7 2 210 380 4
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300 Series
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