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, 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 |
