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 target is to consolidate and improve the quality and service of existing products, meanwhile constantly develop new products to meet different customers' demands for High definition Roller Chain - Double Row Cylindrical Roller Bearing D 105-630mm – Demy, We welcome new and old customers from all walks of life to contact us for future business relationships and mutual success!
| 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 |
