High definition Roller Chain - Double Row Cylindrical Roller Bearing D 105-630mm – Demy
Short Description:
WELCOME TO DEMY BEARING，WELCOME TO VISIT OUR FACTORY
Our company has been focusing on brand strategy. Customers' satisfaction is our best advertising. We also supply OEM service for High definition Roller Chain - Double Row Cylindrical Roller Bearing D 105-630mm – Demy, We are confident that there will be a promising future and we hope we can have long term cooperation with customers from all over the world.
| Boundary dimensions(mm) | Load rating(kN) | Limiting speed (r/min) | Bearing numbers | Mounting dimensions(mm) | Weight (reference) Tapered bore (kg) |
|||||||||||||||
| d | D | B | r1,2 min |
Fw | Ew | b | k | Cr | Cor | Grease | Oil | Cylindrical bore | Tapered bore | da min |
da max |
db min |
Da max |
Da min |
ra max |
|
| 105 | 145 | 40 | 1.1 | 118.0 | – | 8 | 3.0 | 146.0 | 268.0 | 5300 | 6000 | NNU4921/W33 | NNU4921K/W33 | 111.5 | 116 | 120 | 138.5 | – | 1.0 | 2.000 |
| 105 | 160 | 41 | 2.0 | – | 146.0 | 12 | 4.0 | 190.0 | 306.0 | 5000 | 5600 | NN3021/W33 | NN3021 K/W33 | 114.0 | – | – | 151.0 | 148 | 2.0 | 2.660 |
| 110 | 150 | 40 | 1.1 | 123.0 | – | 8 | 3.0 | 151.0 | 284.0 | 5300 | 6000 | NNU4922/W33 | NNU4922K/W33 | 116.5 | 121 | 125 | 143.5 | – | 1.0 | 2.110 |
| 110 | 170 | 45 | 2.0 | – | 155.0 | 12 | 4.0 | 221.0 | 358.0 | 4800 | 5300 | NN3022/W33 | NN3022K/W33 | 119.0 | – | – | 161.0 | 157 | 2.0 | 3.380 |
| 120 | 165 | 45 | 1.1 | 134.5 | – | 8 | 3.0 | 215.0 | 362.0 | 4800 | 5300 | NNU4924/W33 | NNU4924K/W33 | 126.5 | 133 | 137 | 158.5 | – | 1.0 | 2.830 |
| 120 | 180 | 46 | 2.0 | – | 165.0 | 12 | 4.0 | 231.0 | 388.0 | 4500 | 5000 | W3024/W33 | NN3024K/W33 | 129.0 | – | – | 171.0 | 167 | 2.0 | 3.710 |
| 130 | 180 | 50 | 1.5 | 146.0 | – | 8 | 3.0 | 242.0 | 440.0 | 4300 | 4800 | NNU4926/W33 | NNU4926K/W33 | 138.0 | 144 | 149 | 172.0 | – | 1.5 | 3.820 |
| 130 | 200 | 52 | 2.0 | – | 182.0 | 12 | 4.0 | 312.0 | 495.0 | 4000 | 4500 | NN3026/W33 | NN3026K/W33 | 139.0 | – | – | 191.0 | 183 | 2.0 | 5.300 |
| 140 | 190 | 50 | 1.5 | 156.0 | – | 8 | 3.0 | 250.0 | 470.0 | 4000 | 4500 | NNU4928/W33 | NNU4928K/W33 | 148.0 | 154 | 158 | 182.0 | – | 1.5 | 4.040 |
| 140 | 210 | 53 | 2.0 | – | 192.0 | 12 | 4.0 | 297.0 | 516.0 | 3800 | 4300 | NN3028/W33 | NN3028K/W33 | 149.0 | – | – | 201.0 | 194 | 2.0 | 6.120 |
| 150 | 210 | 60 | 2.0 | 168.5 | – | 8 | 4.0 | 380.0 | 690.0 | 3800 | 4300 | NNU4930/W33 | NNU4930K/W33 | 159.0 | 166 | 171 | 201.0 | – | 2.0 | 6.370 |
| 150 | 225 | 56 | 2.1 | – | 206.0 | 14 | 4.5 | 334.0 | 579.0 | 3600 | 4000 | NN3030/W33 | NN3030K/W33 | 161.0 | – | – | 214.0 | 208 | 2.0 | 7.540 |
| 160 | 220 | 60 | 2.0 | 178.5 | – | 8 | 4.0 | 391.0 | 740.0 | 3600 | 4000 | NNU4932/W33 | NNU4932K/W33 | 169.0 | 176 | 182 | 211.0 | – | 2.0 | 6.730 |
| 170 | 230 | 60 | 2.0 | 188.5 | – | 8 | 4.0 | 396.0 | 765.0 | 3400 | 3800 | NNU4934/W33 | NNU4934K/W33 | 179.0 | 186 | 192 | 221.0 | – | 2.0 | 7.1 10 |
| 170 | 260 | 67 | 2.1 | – | 236.0 | 14 | 4.5 | 438.0 | 785.0 | 3000 | 3400 | – | NN3034K/W33 | 181.0 | – | – | 249.0 | 238 | 2.0 | 12.500 |
| 180 | 250 | 69 | 2.0 | 202.0 | – | 10 | 4.0 | 506.0 | 965.0 | 3000 | 3400 | NNU4936/W33 | NNU4936K/W33 | 189.0 | 199 | 205 | 241.0 | – | 2.0 | 10.400 |
| 180 | 280 | 74 | 2.1 | – | 255.0 | 14 | 4.5 | 562.0 | 986.0 | 2800 | 3200 | – | NN3036K/W33 | 191.0 | – | – | 269.0 | 257 | 2.0 | 16.400 |
| 190 | 260 | 69 | 2.0 | 212.0 | – | 10 | 4.0 | 523.0 | 1030.0 | 2800 | 3200 | NNU4938/W33 | NNU4938K/W33 | 199.0 | 209 | 215 | 251.0 | – | 2.0 | 10.900 |
| 190 | 290 | 75 | 2.1 | – | 265.0 | 14 | 4.5 | 645.0 | 1058.0 | 2600 | 3000 | – | NN3038K/W33 | 201.0 | – | – | 279.0 | 267 | 2.0 | 17.800 |
| 200 | 280 | 80 | 2.1 | 225.0 | – | 14 | 4.5 | 572.0 | 1260.0 | 2600 | 3000 | NNU4940/W33 | NNU4940K/W33 | 211.0 | 222 | 228 | 269.0 | – | 2.0 | 15.300 |
| 200 | 310 | 82 | 2.1 | – | 282.0 | 14 | 6.0 | 672.0 | 1177.0 | 2400 | 2800 | – | NN3040K/W33 | 211.0 | – | – | 299.0 | 285 | 2.0 | 22.500 |
| 220 | 300 | 80 | 2.1 | 245.0 | – | 14 | 4.5 | 600.0 | 1330.0 | 2400 | 2800 | NNU4944/W33 | NNU4944K/W33 | 231.0 | 242 | 248 | 289.0 | – | 2.0 | 16.600 |
| 220 | 340 | 90 | 3.0 | – | 310.0 | 14 | 6.0 | 809.0 | 1440.0 | 2200 | 2600 | – | NN3044K/W33 | 233.0 | – | – | 327.0 | 313 | 2.5 | 29.600 |
| 240 | 320 | 80 | 2.1 | 265.0 | – | 14 | 4.5 | 625.0 | 1450.0 | 2200 | 2600 | NNU4948/W33 | NNU4948K/W33 | 251.0 | 262 | 269 | 309.0 | – | 2.0 | 18.000 |
| Boundary dimensions(mm) | Load rating(kN) | Limiting speed (r/min) | Bearing numbers | Mounting dimensions(mm) | Weight (reference) Tapered bore (kg) |
|||||||||||||||
| d | D | B | r1,2 min |
Fw | Ew | b | k | Cr | Cor | Grease | Oil | Cylindrical bore | Tapered bore | da min |
da max |
db min |
Da max |
Da min |
ra max |
|
| 240 | 360 | 92 | 3.0 | – | 330.0 | 14 | 6.0 | 842.0 | 1560.0 | 2000 | 2400 | – | NN3048K/W33 | 253.0 | – | – | 347.0 | 333 | 2.5 | 32.7000 |
| 260 | 360 | 100 | 2.1 | 292.0 | – | 14 | 4.5 | 935.0 | 1620.0 | 2000 | 2400 | NNU4952/W33 | NNU4952K/W33 | 271.0 | 288 | 296 | 349.0 | – | 2.0 | 31.100 |
| 260 | 400 | 104 | 4.0 | – | 364.0 | 14 | 6.0 | 1020.0 | 1910.0 | 1900 | 2200 | – | NN3052K/W33 | 276.0 | – | – | 384.0 | 367 | 3.0 | 47.700 |
| 280 | 420 | 106 | 4.0 | – | 384.0 | – | – | 1060 | 2290 | 2200 | 1800 | – | NN3056K | 296 | – | – | – | 404 | 3 | 49.700 |
| 280 | 420 | 106 | 4.0 | – | 384.0 | – | – | 1060 | 2290 | 1700 | 1400 | NN3056 | – | 296 | – | – | – | 404 | 3 | 52.300 |
| 300 | 460 | 118 | 4.0 | – | 418.0 | – | – | 1290 | 2790 | 1200 | 1500 | – | 3182160* | 316 | – | – | – | 444 | 3 | 76.200 |
| 300 | 460 | 118 | 4.0 | – | 418.0 | – | – | 1290 | 2790 | 1200 | 1500 | – | 3282160* | 316 | – | – | – | 444 | 3 | 77.900 |
| 320 | 480 | 121 | 4.0 | – | 438.0 | 17.7 | 8 | 1360 | 2910 | 1100 | 1400 | NN3064/W33 | – | 336 | – | – | – | 464 | 3 | 76.300 |
| 320 | 480 | 145 | 3.7 | 364.0 | – | 18 | 8 | 1650 | 3870 | 1100 | 1300 | – | 482764* | – | – | – | – | – | – | 93.300 |
| 500 | 670 | 160 | 5.0 | 554.0 | – | – | – | 2230 | 6800 | 750 | 1000 | NNU49/500X2F1/YA34 | – | – | – | – | – | – | – | 174.000 |
| 530 | 710 | 180 | 5.0 | 588.0 | – | 17.7 | 6 | 2660 | 7450 | 700 | 950 | NNU49/530/HCW33 | – | – | – | – | – | – | – | 203.000 |
| 560 | 820 | 195 | 6.0 | – | 755.0 | – | – | 3380 | 8170 | 600 | 850 | – | NN30/560K | 590 | – | – | – | 790 | 6 | 337.000 |
| 600 | 870 | 200 | 6.0 | – | 805.0 | – | – | 4050 | 9850 | 600 | 800 | – | 31821/600* | 630 | – | – | – | 840 | 6 | 384.000 |
| 600 | 870 | 200 | 6.0 | – | 805.0 | 15 | 8 | 4050 | 9850 | 600 | 800 | – | 32821/600K* | 630 | – | – | – | 840 | 6 | 403.000 |
| 630 | 920 | 212 | 7.5 | – | 850.0 | – | – | 4350 | 10600 | 550 | 750 | – | 31821/630* | 660 | – | – | – | 890 | 6 | 438.000 |
| 630 | 920 | 212 | 7.5 | – | 850.0 | 15 | 8 | 4350 | 10600 | 550 | 750 | – | 32821/630K* | 660 | – | – | – | 890 | 6 | 460.000 |
