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Model: NN Double Row Cylindrical Roller Bearings
Brand: MBY
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NN Double Row Cylindrical Roller Bearings

Product Description
MBY® cylindrical roller bearings have many designs, dimension series and sizes. The majority is single row bearings with a cage. Single and double row full complement bearings (without cage) complete the MBY® standard assortment for general engineering. Bearings with a cage can accommodate heavy radial loads and operate at high speeds. Full complement cylindrical roller bearings are suitable for very heavy radial loads at moderate speeds.

The rollers of MBY® cylindrical roller bearings are key components. Their geometry, the so-called logarithmic profile, provides an optimum stress distribution in the contact zones in the bearing. Their surface finish maximizes lubricant film formation and optimizes rolling motion of the rollers. The benefits derived from this compared with traditional designs include enhanced operational reliability and a greater insensitivity to misalignment.

The range of MBY® cylindrical roller bearings comprises the basic types.
MBY® single row cylindrical roller bearings, caged, mainly of the NU, NJ, NUP and N designs.
MBY® double row cylindrical roller bearings, caged, mainly of the NNUand NN designs.
MBY® single row full complement cylindrical roller bearings, mainly of the NCF and NJG designs.
MBY® double row full complement cylindrical roller bearings, mainly of the NNF design.

MBY® cylindrical roll bearings have the following design features:
1. Optimized design in ribs and rollers to enhance the axial load capacity
2. Optimized design in the geometric surface between rollers and raceway to balance the radial load  distribution
3. Limit the width of raceway undercut, increase the contact area between raceway and rollers and  enhance the radial load capacity
4. High standard material, strictly control the element content, e.g. Ti<30ppm
5. Low noise design, reaches to V1 grade noise level, contributes to the quieter running of automobile  engine and gearbox.


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d D B rsmin E Mass CrKN CorKN Reference Limit  Bearing Code D1min D4max D5min
speed Speed
30 55 19 1 48.5 0.191 29 34 16000 19000 NN3006ASK 35 50 49
35 62 20 1 55 0.249 35.5 44 14000 17000 NN3007ASK 40 57 56
40 68 21 1 61 0.303 45 58.5 12000 15000 NN3008ASK 45 63 62
45 75 23 1 67.5 0.393 54 72 11000 14000 NN3009ASK 50 70 69
50 80 23 1 72.5 0.426 57 80 10000 13000 NN3010ASK 55 75 74
55 90 26 1.1 81 0.63 57 80 9000 11000 NN3011ASK 61 84 82
60 95 26 1.1 86.1 0.674 75 110 8500 10000 NN3012ASK 66 89 87
65 100 26 1.1 91 0.715 76.5 116 8000 9500 NN3013ASK 71 94 92
70 110 30 1.1 100 1.04 98 150 7000 8500 NN3014ASK 76 104 702
75 115 30 1.1 105 1.09 100 156 6700 8000 NN3015ASK 81 109 107
80 125 34 1.1 113 1.51 120 186 6300 7500 NN3016ASK 86 119 115
85 130 34 1.1 118 1.58 125 200 6000 7000 NN3017ASK 91 124 120
90 140 37 1.5 127 2.05 140 224 5600 6700 NN3018ASK 98 132 129
95 145 37 1.5 132 2.14 143 236 5300 6300 NN3019ASK 103 137 134
100 150 37 1.5 137 2.23 146 245 5300 6300 NN3020ASK 108 142 139
105 160 41 2 146 2.84 190 310 4800 5600 NN3021ASK 114 151 148
110 170 45 2 155 3.61 220 360 4500 5300 NN3022ASK 119 161 157
120 180 46 2 165 3.94 232 390 4300 5000 NN3024ASK 129 171 167
130 200 52 2 182 5.79 290 500 3800 4500 NN3026ASK 139 191 184
140 210 53 2 192 6.22 300 520 3600 4300 NN3028ASK 149 201 194
150 225 56 2.1 206 7.58 335 585 3400 4000 NN3030ASK 160 215 208
160 240 60 2.1 219 9.23 375 670 3200 3800 NN3032ASK 170 230 222
170 260 67 2.1 236 12.5 450 800 3000 3600 NN3034ASK 180 250 239
180 280 74 2.1 255 16.4 570 1000 2800 3400 NN3036ASK 190 270 258
190 290 75 2.1 265 17.3 585 1040 2600 3200 NN3038ASK 200 280 268
200 310 82 2.1 282 22.2 655 1200 2400 3000 NN3040ASK 210 300 285
220 340 90 3 310 29.1 800 1460 2200 2800 NN3044ASK 232 328 313
240 360 92 3 330 31.6 850 1560 2000 2600 NN3048ASK 252 348 334
260 400 104 4 364 46.2 1060 2000 1900 2400 NN3052ASK 275 385 368
280 420 106 4 384 49.7 1080 2080 1800 2200 NN3056ASK 295 405 388
300 460 118 4 418 68.8 1270 2400 1600 1900 NN3060ASK 315 445 422
320 480 121 4 438 74.2 1320 2600 1600 1900 NN3064ASK 335 465 442
340 520 133 5 473 99.3 1630 3250 1400 1700 NN3068ASK 357 503 477
360 540 134 5 493 104 1660 3350 1400 1700 NN3072ASK 377 523 497
380 560 135 5 513 110 1700 3450 1300 1600 NN3076ASK 397 543 517
400 600 148 5 549 143 2160 4500 1200 1500 NN3080ASK 417 583 553

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