High definition Roller Chain - Double Row Cylindrical Roller Bearing D 105-630mm – Demy
Short Description:
WELCOME TO DEMY BEARING，WELCOME TO VISIT OUR FACTORY
We are proud of the high customer satisfaction and wide acceptance due to our persistent pursuit of high quality both on product and service for High definition Roller Chain - Double Row Cylindrical Roller Bearing D 105-630mm – Demy, If you are interested in our products, please feel free to send us your inquiry. We sincerely hope to establish win-win business relationships with you.
| 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 |
