
中福单列CRB的标准产品具有基本径向间隙,也可以有3、4组间隙。
中福双列CRB的标准产品有1组间隙,圆柱孔轴承也可以有2组、3组间隙,圆锥孔轴承也有2组间隙。
中福四排CRB的标准产品有3组清仓,也有其他清仓产品。
径向间隙大于或小于标准值的轴承也可根据用户要求生产。
/C9T Double-row CRB have different clearances between the two rows of raceways.
D Split bearing.
DR Two rows of split bearings are used in pairs.
E Internal design change with reinforced structure. (The raceway size conforms to the current national standard (reinforced type), and the roller diameter and the length are increased compared with the non-reinforced type.)
FC…ZW Four-row CRB with single inner ring, double outer rings with double ribs, and two rows of rollers against each other.
J Pressed sheet-steel cage, with additional number distinction when the material has a change.
JA Steel plate stamping cage with outer ring guide.
JE Stamping cage of hardened steel plate after phosphating treatment.
K Tapered bore bearing, with taper of 1:12.
K30 Tapered bore bearing, with taper of 1:30.
L Light-alloy solid cage. When there is a change in the cage material, it shall be indicated by an additional number.
LA Light-alloy solid cage with outer ring guide.
LB Light-alloy solid cage with inner ring guide.
M Brass solid cage.
MA Brass solid cage with outer ring guide.
MB Brass solid cage with inner ring guide.
N There is a snap groove on the outer ring of the bearing.
NB Narrow inner ring bearing.
NB1 Narrow inner ring bearing, with narrow on one side.
NC Narrow outer ring bearing.
NR The bearing has a snap groove on the outer ring with a snap ring.
N1 The outer ring of the bearing has a positioning notch.
N2 The outer ring of the bearing has two or more symmetrical positioning notches.
Q Bronze solid cage, with additional numbers to indicate different materials.
/QR Combination of four CRB with equal distribution of radial loads.
R The outer ring of the bearing has a stop rib (flange outer ring).
-RS One side of the bearing is equipped with a skeleton rubber sealing ring.
-2RS Bearings with RS seals on both sides.
-RSZ One side of the bearing is equipped with a skeleton rubber sealing ring (contact type) and the other side is equipped with a dustproof cover.
-RZ One side of the bearing is equipped with a skeleton rubber sealing ring (non-contact).
-2RZ Bearings with RZ seals on both sides.
S Martensite quenching.
VB Vibrating screen bearing.
W B Wide inner ring bearing (double-sided width).
W B1 Wide inner ring bearing (one-side width).
W C Wide outer ring bearing.
X CRB fully equipped with flat retaining ring rollers.
X1 The outer diameter is non-standard.
X2 The width (height) is non-standard.
X3 The outer diameter and width (height) are non-standard (standard inner diameter).
-Z Bearing with shield on one side .
-2Z Bearing with shield on both sides.



| 基本尺寸 mm | 基本额定载荷 kN | 极限转速 rmin | 轴承代号 | 安装尺寸 mm | 重量 kg | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| d | D | B | r1min | rmin | E | Cr | Cor | 脂润滑 | 油润滑 | 轴承代号 | damin | damax | Dbmax | Dbmin | 重量 |
| 140 | 300 | 62 | 4 | 4 | 260 | 595 | 806 | 1900 | 2400 | IS-N328M | 156 | 256 | 284 | 264 | 21.9 |
| 130 | 230 | 40 | 3 | 3 | 209.5 | 354 | 496 | 2200 | 2800 | IS-N226EM | 143 | 206 | 217 | 213 | 7.09 |
| 120 | 215 | 40 | 2.1 | 2.1 | 191.5 | 270 | 391 | 2400 | 3000 | IS-N224M | 131 | 140 | 204 | 195 | 6.11 |
| 110 | 240 | 50 | 3 | 3 | 211 | 420 | 596 | 2000 | 2600 | IS-N322EM | 123 | 204 | 227 | 215 | 11.4 |
| 110 | 240 | 50 | 3 | 3 | 207 | 373 | 479 | 2000 | 2600 | IS-N322 | 123 | 208 | 227 | 210 | 10.2 |
| 105 | 225 | 49 | 3 | 3 | 201 | 416 | 527 | 2200 | 2800 | IS-N321EM | 118 | 130 | 212 | 203 | 10.5 |
| 100 | 215 | 47 | 3 | 3 | 191.5 | 372 | 468 | 2400 | 3000 | IS-N320EM | 113 | 188 | 202 | 195 | 9.67 |
| 100 | 215 | 47 | 3 | 3 | 185.5 | 335 | 400 | 2400 | 3000 | IS-N320M | 113 | 182 | 202 | 190 | 8.24 |
| 100 | 180 | 34 | 2.1 | 2.1 | 163 | 242 | 333 | 3200 | 3800 | IS-N220EM | 111 | 160 | 169 | 166 | 3.77 |
| 95 | 200 | 45 | 3 | 3 | 177.5 | 307 | 390 | 2600 | 3200 | IS-N319EM | 108 | 174 | 187 | 181 | 7.1 |
| 基本尺寸 mm | 基本额定载荷 kN | 其他尺寸 mm | 轴承代号 | 重量 kg | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| d | D | B | C | r1min | rmin | Cr | Cor | D1 | d1 | G | b | δ | 轴承代号 | 重量 |
| 770 | 950 | 380 | 290 | 6 | 6 | 3950 | 11700 | 890 | 820 | 882 | 6º | ND6/770D/HCR | 550 | |
| 750 | 960 | 380 | 290 | 5 | 15 | 3940 | 10800 | 887 | 806 | 870 | 6º | ND6/750DF3/HCR | 626 | |
| 750 | 960 | 380 | 290 | 5 | 15 | 3940 | 10800 | 887 | 806 | 870 | 6º | ND6/750D/HCR | 626 | |
| 750 | 920 | 185 | 106 | 7.5 | 7.5 | 2400 | 6250 | 864 | 802 | 863 | 8 | 6º | N6/750DF3 | 241 |
| 750 | 920 | 185 | 106 | 7.5 | 7.5 | 2400 | 6250 | 864 | 802 | 863 | 8 | 6º | N6/750D | 241 |
| 711.2 | 892.2 | 184.15 | 87.3 | 5 | 7.5 | 1790 | 5600 | 823 | 767.5 | 820 | 8 | 6º | N6/711.2DF3 | 225 |
| 711.2 | 892.2 | 184.15 | 87.3 | 5 | 7.5 | 1790 | 5600 | 823 | 767.5 | 820 | 8 | 6º | N6/711.2D | 225 |
| 700 | 870 | 380 | 290 | 12 | 12 | 3500 | 10200 | 749 | 811 | 821 | 10 | 6º | ND6/700D/HCRYA8 | 494 |
| 650 | 840 | 390 | 300 | 6 | 6 | 4130 | 11200 | 794 | 706 | 772 | 6º | ND6/650D-1/DR | 538 | |
| 650 | 820 | 380 | 290 | 5 | 17 | 3250 | 9100 | 762 | 700 | 758 | 6º | ND6/650D/DR | 455 | |
| 630 | 794 | 380 | 278 | 5 | 10 | 3500 | 9400 | 740 | 676 | 736 | 10 | 6º | ND6/630D/DR | 407 |
| 620 | 820 | 380 | 290 | 5 | 12 | 3400 | 9100 | 752 | 671 | 740 | 6º | ND6/620D/DR | 505 | |
| 500 | 670 | 450 | 360 | 5 | 5 | 3300 | 8700 | 613 | 543 | 610 | 6º | ND69/500X2D/DR-SY | 402 | |
| 400 | 685.8 | 292 | 166.7 | 3 | 8 | 3340 | 6250 | 596 | 458 | 548 | 12 | 6º | N680D | 378 |
| 200 | 368.3 | 156.369 | 90.488 | 4 | 4 | 1060 | 1600 | 244 | 290 | 8.5 | 6º | N640D-1 | 61.4 | |
| 200 | 368.3 | 156.369 | 90.488 | 4 | 4 | 1060 | 1600 | 312 | 244 | 290 | 8.5 | 6º | N640D | 63 |
| 基本尺寸 mm | 基本额定载荷 kN | 极限转速 rmin | 轴承代号 | 安装尺寸 mm | 重量 kg | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| d | D | B | C | r1min | rmin | Cr | Cor | 脂润滑 | 轴承代号 | e | F | 重量 |
| 150 | 360 | 173 | 171 | 5 | 3.75×45° | 1570 | 3040 | 200 | NNTR150-2ZL | 196 | 191 | 105 |
| 140 | 320 | 170 | 170 | 5 | 2.5 | 1500 | 2830 | 210 | NNTR140-2ZL-1/HCOYA1 | 145 | 300 | 70.2 |
| 140 | 320 | 170 | 170 | 5 | 2.5 | 1500 | 2830 | 210 | NNTR140-2ZL-1/HCO | 145 | 300 | 80 |
| 140 | 250 | 115 | 115 | 20×23° | 4 | 755 | 1570 | 220 | NUTR140250XS | 160 | 160 | 27.1 |
| 140 | 250 | 114 | 114 | 5 | 4 | 610 | 1300 | 220 | NNTR140-2ZL | 179 | 158 | 27.7 |
| 130 | 310 | 146 | 144 | 5 | 3 | 1150 | 1930 | 260 | NNTR130-2ZL-1 | 165 | 153 | 65 |
| 130 | 275 | 110 | 110 | 2 | 7 | 660 | 1180 | 250 | NNTR130-XRS | 170 | 154 | 29.4 |
| 130 | 250 | 106 | 103 | 4 | 4 | 800 | 1330 | 240 | NNTR130-2ZL | 160 | 147 | 26.8 |
| 130 | 230 | 120 | 120 | 4 | 3 | 1050 | 1610 | 230 | NUTR130230XS/YAD | 173 | 146 | 23.5 |
| 130 | 230 | 120 | 120 | 4 | 3 | 880 | 1550 | 230 | NUTR130230XS | 186.5 | 130 | 23.6 |
| 120 | 290 | 135 | 133 | 3 | 2 | 880 | 1600 | 260 | NNTR120-2Z | 157 | 143 | 50.9 |
| 110 | 260 | 115 | 113 | 4 | 2 | 775 | 1350 | 240 | NNTR110-2ZL | 143 | 133 | 35.6 |
| 110 | 250 | 100 | 100 | 3 | 1.1×45° | 380 | 695 | 250 | NNTR110 | 132 | 124 | 27.3 |
| 110 | 240 | 190 | 180 | 4 | 3 | 1260 | 2720 | 260 | NNTR110X3-2ZL | 142 | 134 | 49.1 |
| 110 | 200 | 60 | 58 | 4 | 1.5×45° | 500 | 760 | 300 | NUTR110 200 | 160.9 | 126 | 8.93 |
| 105 | 280 | 135 | 135 | 2 | 2 | 1040 | 1800 | 320 | NNTRP105R-2ZL/S2YA2 | 152.4 | 142 | 44.2 |
| 100 | 250 | 106 | 103 | 5 | 1.5×45° | 680 | 1020 | 350 | NNTR100-2ZL/HCO | 180 | 105 | 30.1 |
| 100 | 300 | 82 | 80 | 1.5 | 1×45° | 710 | 1220 | 350 | NNTR100-1/C9 | 152 | 134 | 36.7 |
| 基本尺寸 mm | 轴承代号 | 基本额定载荷 kN | 重量 kg | 图例 | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| d | D | B | C | r1min | rmin | F | 轴承代号 | Cr | Cor | 重量 | 图例 |
| 258 | 520 | 160 | 160 | 1 | 3 | 258 | BNPF41104160 | 2480 | 4150 | 207 | 图十四 |
| 215 | 550 | 205 | 200 | 1.1 | 1.1 | SJ-NNUP215-XRS | 2600 | 4500 | 293 | 图十二 | |
| 180 | 406.42 | 171.04 | 171.04 | 1.5 | 4 | BNPF3680170X3 | 2070 | 3850 | 128 | 图四 | |
| 180 | 410 | 240 | 220 | 1.1 | 1.1 | SJ-TCNP180-2 | 2500 | 4950 | 170 | 图十三 | |
| 180 | 406.6 | 181 | 179 | 2.5 | 1.1 | 222 | SJ-TCNP180-XRS-1 | 1800 | 3300 | 133 | 图七 |
| 180 | 406.42 | 224 | 1.5 | 4 | 217.3 | SJ-TCNB180X2 | 2640 | 5250 | 171 | 图四 | |
| 180 | 406.42 | 224 | 222 | 2.5 | 1.1 | 222 | SJ-TCNP180-XRS-3 | 2200 | 4300 | 166 | 图七 |
| 180 | 406.42 | 171 | 169 | 2.5 | 1.1 | 222 | SJ-TCNP180-XRS-2 | 1700 | 3100 | 124 | 图七 |
| 180 | 406.42 | 182 | 179 | 2.5 | 1.1 | 222 | SJ-TCNP180-XRS | 1740 | 3200 | 133 | 图七 |
| 180 | 406.42 | 171.04 | 1.5 | 4 | 217.3 | SJ-TCNB180-PX | 2360 | 4050 | 130 | 图四 | |
| 180 | 406.42 | 171.04 | 1.5 | 4 | 217.3 | SJ-TCNB180-1 | 2360 | 4050 | 130 | 图四 | |
| 180 | 406.42 | 171.04 | 1.5 | 4 | 217.3 | SJ-TCNB180 | 2360 | 4050 | 130 | 图四 | |
| 180 | 406.42 | 171.04 | 1.5 | 10×15° | 217 | SJ-NNJ180-2RS | 1450 | 2770 | 125 | 图八 | |
| 130 | 300.2 | 170 | 168 | 2.5 | 1.1 | 158.455 | SJ-TCNP130-XRS | 1300 | 2230 | 68.5 | 图七 |
| 130 | 300.02 | 172.65 | 171.6 | 3.1 | 2 | 156 | SJ-NNUP130-2ZL-1 | 1450 | 2430 | 69.8 | 图二 |
| 130 | 300.02 | 172.65 | 171.6 | 2.5 | 2.5 | 156 | SJ-NNUP130-2ZL | 1450 | 2430 | 70.1 | 图二 |
| 130 | 300.02 | 132 | 129 | 3.1 | 2 | 156 | SJ-NNUP130 | 1090 | 1820 | 53.8 | 图六 |
| 130 | 300 | 172.644 | 2.5 | 2.5 | 161 | SJ-TCNB130-3 | 1480 | 2810 | 72 | 图四 | |
| 130 | 300 | 172.664 | 2.5 | 2.5 | 158.7 | SJ-TCNB130-1 | 1510 | 2790 | 72.9 | 图四 | |
| 130 | 300 | 172.64 | 2.5 | 3 | 159.5 | SJ-TCNB130-5 | 1480 | 2720 | 72.3 | 图四 | |
| 130 | 300 | 172.64 | 2.7 | 2 | 159.455 | SJ-TCNB130-4 | 1880 | 2940 | 73.6 | 图四 | |
| 130 | 300 | 172.64 | 4 | 2.5 | 159.455 | SJ-TCNB130-2 | 1880 | 2940 | 73.6 | 图四 | |
| 130 | 300 | 172.64 | 4 | 2.5 | 158.455 | SJ-TCNB130/WN26 | 1720 | 2670 | 72.2 | 图四 | |
| 130 | 300 | 172.64 | 4 | 2.5 | 158.455 | SJ-TCNB130 | 1720 | 2670 | 72.3 | 图四 | |
| 130 | 300 | 172 | 172 | 1 | 2 | 159.3 | BNPF2660172 | 1500 | 2740 | 71.1 | 图四 |
| 130 | 300.02 | 132 | 129 | 2 | 2 | 156 | SJ-NNFP130X2 | 1100 | 1860 | 53.1 | 图三 |
| 130 | 300 | 172.64 | 172.64 | 4 | 2 | 158.45 | SJ-NNFP130 | 1390 | 2500 | 69.6 | 图三 |
| 130 | 300 | 172.664 | 172.661 | 6 | 10×15° | 157 | SJ-NNJ130-2RS | 1320 | 2210 | 68.9 | 图八 |
| 100 | 225 | 100 | 95 | 1 | 1.2 | 119.5 | BNPF2045100 | 520 | 795 | 21.6 | 图十五 |
| 60 | 150 | 75 | 73 | 1 | 1.2 | 75 | BNPF123075-2RZ-1 | 270 | 390 | 7.85 | 图二 |
| 60 | 150 | 75 | 73 | 1 | 0.8 | 75 | BNPF123075-2RZ | 270 | 390 | 7.85 | 图二 |
| 55 | 126 | 64 | 63.2 | 2 | 0.5×45° | 69 | BNPF112564X1-2RZ | 172 | 260 | 4.53 | 图二 |
| 55 | 120 | 52 | 51.2 | 1.2 | 0.8 | 65 | SJ-NNUPTR3311X2/HCOC9 | 165 | 225 | 3.21 | 图十五 |
| 51 | 98.4 | 60 | 54 | 2 | 0.5×45° | 61.14 | BNPF102060X1V-2RZ | 170 | 250 | 2.25 | 图一 |
| 51 | 98.4 | 60 | 54 | 2 | 0.5×45° | 61.14 | BNPF102060X1-2RZ | 154 | 270 | 4.53 | 图一 |
| 50 | 110 | 32 | 30 | 2 | 1 | 57.3 | SJ-NUTR50110-2RZ/HCO | 108 | 173 | 1.7 | 图十七 |
| 40 | 105 | 48 | 46 | 1 | 1 | 51 | SJ-NUPT608Q1/HCO | 114 | 148 | 2.43 | 图十六 |
| 35 | 110 | 40 | 39 | 1 | 1.5 | 45 | SJ-NNUPTR2047X3/HCO | 83 | 100 | 2.46 | 图六 |
| 基本尺寸 mm | 基本额定载荷 kN | 极限转速 rmin | 轴承代号 | 其他尺寸 mm | 接触面和倒角尺寸 mm | 止动环尺寸 mm | 重量 kg | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| d | D | B | r1min | rmin | E.F | Cr | Cor | 脂润滑 | 油润滑 | 轴承代号 | d1 | D1 | b | k | damin | Damax | ramax | rbmax | B1 | B2 | b1 | Ca | 重量 |
| 300 | 460 | 200 | 1.5 | 3×30° | 415 | 2430 | 5400 | 550 | 800 | NNF5060X2-2LSNRV | 360 | 315 | 430 | 3 | 1.5 | 172 | 14 | 7.5 | 158 | 129 | |||
| 280 | 420 | 190 | 1.5 | 2×30° | 382.5 | 2050 | 4910 | 680 | 840 | NNF5056-2LS1NRV | 326 | 288 | 410 | 2 | 1.5 | 168.2 | 10.4 | 8.1 | 154 | 95.8 | |||
| 260 | 400 | 190 | 1.1 | 3×30° | 361 | 2180 | 4800 | 740 | 920 | NNF5052-2LS1NRV | 309 | 275 | 392 | 3 | 1 | 168 | 10.5 | 8.1 | 154 | 92.4 | |||
| 240 | 360 | 160 | 1.1 | 2×30° | 328 | 1580 | 3850 | 1000 | 1300 | NNF5048-2LS1NRV | 279.5 | 248 | 352 | 2 | 1 | 142.6 | 8.2 | 6.3 | 130 | 60.7 | |||
| 160 | 240 | 109 | 1.1 | 2×30° | 222.6 | 835 | 1680 | 1400 | 1700 | NNF5032-2LS1NRV/YB2 | 191 | 167 | 232 | 2 | 1 | 95 | 6.5 | 4 | 89 | 18.4 | |||
| 160 | 240 | 109 | 0.6 | 2×30° | 222.6 | 835 | 1680 | 1400 | 1700 | NNF5032-2LSNRV | 191 | 167 | 235 | 2 | 0.5 | 96 | 6 | 6 | 86 | 18.8 | |||
| 150 | 225 | 100 | 0.6 | 2×30° | 207.5 | 710 | 1400 | 1500 | 1900 | NNF5030-2LSNRV | 177.5 | 9.3 | 4.5 | 159 | 218 | 2 | 0.5 | 87.2 | 5.9 | 5.2 | 81 | 13.7 | |
| 150 | 210 | 80 | 0.6 | 1.8×30° | 193.3 | 490 | 1100 | 1600 | 2000 | NNF5930-2LSNRV | 171.3 | 7.2 | 3.5 | 159 | 204 | 1.8 | 0.5 | 71.2 | 3.9 | 5.2 | 65 | 8.6 | |
| 140 | 210 | 94 | 1 | 3.0×30° | 191.3 | 560 | 1123 | 1600 | 2000 | NNF5028-2ZNRV/C9-ZT | 166 | 147 | 204 | 1.8 | 0.5 | 11.9 | |||||||
| 140 | 210 | 95 | 0.6 | 1.8×30° | 191.3 | 610 | 1100 | 1600 | 2000 | NNF5028-2LSNRV | 166 | 7.2 | 3.5 | 147 | 204 | 1.8 | 0.5 | 83.2 | 5.4 | 5.2 | 77 | 11.7 | |
| 140 | 200 | 80 | 0.6 | 1.8×30° | 183.2 | 470 | 960 | 1700 | 2100 | NNF4028X2-2LSNRV | 159.6 | 7.2 | 3.5 | 147 | 194 | 1.8 | 0.5 | 71.2 | 3.9 | 4.2 | 65 | 8.17 | |
| 140 | 190 | 50 | 1.5 | 1.5 | 176.5 | 280 | 550 | 1800 | 2200 | NNCD4928V-2RS | 159.5 | 171.5 | 150 | 180 | 1.5 | 1.5 | 4.03 | ||||||
| 130 | 200 | 94 | 1 | 1.8×30° | 185.2 | 540 | 1000 | 1800 | 2200 | NNF5026-2ZNRV/C9-ZT | 158 | 137 | 195 | 1.8 | 1 | 83 | 5.5 | 3.2 | 77 | 10.8 | |||