High precision angular contact ball bearings performance DRZ angular contact ball bearings can bear radial load and one direction axial load. When the bearing withstands radial loads, axial force will be generated on inner ring. Therefore, the single row angular contact ball bearings are often used with other bearings which can withstand axial load in the opposite direction. That is, angular contact ball bearings are commonly used in pair, or in groups with three, four and even five bearings.
1. Contact angles
The contact angles of DRZ angular contact ball bearings for machine tool are 15° and 25°. The bearing with 15° contact angle is used when the high speed and light axial load are needed, while the 25° contact angle bearing should be adopted on the contrary.
轴承Bearings | 尺寸 Demension | mounting dimensions 安装尺寸 | Loading 额定载荷 | 极限转速 | 重量 Weight | |||||||||
d | D | B | ramin | r1min | da | Da/Db | ra | rb | Cr | Cor | 脂Lub. | 油 Oil | ≈ | |
mm | min | max | max | max | kN | r/min | Kg | |||||||
7204C | 20 | 47 | 14 | 1 | 0.3 | 26.5 | 40.5 | 1 | 0.3 | 13.1 | 9.6 | 34000 | 50000 | 0.11 |
7204AC | 20 | 47 | 14 | 1 | 0.3 | 26.5 | 40.5 | 1 | 0.3 | 12.6 | 9.2 | 30000 | 45000 | 0.11 |
7205C | 25 | 52 | 15 | 1 | 0.3 | 30.5 | 46.5 | 1 | 0.3 | 16.8 | 13.1 | 30000 | 45000 | 0.14 |
7205AC | 25 | 52 | 15 | 1 | 0.3 | 30.5 | 46.5 | 1 | 0.3 | 16.1 | 12.5 | 26000 | 40000 | 0.14 |
7206C | 30 | 62 | 16 | 1 | 0.3 | 36.5 | 55.5 | 1 | 0.3 | 23.4 | 18.8 | 24000 | 38000 | 0.21 |
7206AC | 30 | 62 | 16 | 1 | 0.3 | 36.5 | 55.5 | 1 | 0.3 | 22.3 | 18 | 20000 | 34000 | 0.21 |
7207C | 35 | 72 | 17 | 1.1 | 0.6 | 44 | 63 | 1.1 | 0.6 | 25.8 | 22.9 | 18000 | 30000 | 0.31 |
7207AC | 35 | 72 | 17 | 1.1 | 0.6 | 44 | 63 | 1.1 | 0.6 | 24.5 | 21.9 | 17000 | 28000 | 0.31 |
7208C | 40 | 80 | 18 | 1.1 | 0.6 | 49 | 71 | 1.1 | 0.6 | 34.1 | 30.9 | 17000 | 28000 | 0.4 |
7208AC | 40 | 80 | 18 | 1.1 | 0.6 | 49 | 71 | 1.1 | 0.6 | 32.5 | 29.5 | 15000 | 24000 | 0.4 |
7209C | 45 | 85 | 19 | 1.1 | 0.6 | 54 | 76 | 1.1 | 0.6 | 35.5 | 33.8 | 16000 | 26000 | 0.45 |
7209AC | 45 | 85 | 19 | 1.1 | 0.6 | 54 | 76 | 1.1 | 0.6 | 33.8 | 32.3 | 14000 | 22000 | 0.45 |
7210C | 50 | 90 | 20 | 1.1 | 0.6 | 57.5 | 83 | 1.1 | 0.6 | 43.3 | 40.6 | 15000 | 24000 | 0.49 |
7210AC | 50 | 90 | 20 | 1.1 | 0.6 | 57.5 | 83 | 1.1 | 0.6 | 41.3 | 38.7 | 14000 | 22000 | 0.49 |
7211C | 55 | 100 | 21 | 1.5 | 0.6 | 63 | 92 | 1.5 | 0.6 | 53.6 | 51.1 | 14000 | 22000 | 0.65 |
7211AC | 55 | 100 | 21 | 1.5 | 0.6 | 63 | 92 | 1.5 | 0.6 | 51.1 | 48.8 | 13000 | 20000 | 0.65 |
7212C | 60 | 110 | 22 | 1.5 | 0.6 | 71.5 | 100.5 | 1.5 | 0.6 | 55.8 | 56.2 | 12000 | 19000 | 0.86 |
7212AC | 60 | 110 | 22 | 1.5 | 0.6 | 71.5 | 100.5 | 1.5 | 0.6 | 53 | 53.5 | 11000 | 18000 | 0.86 |
7213C | 65 | 120 | 23 | 1.5 | 0.6 | 76.5 | 108.5 | 1.5 | 0.6 | 67.5 | 69 | 11000 | 18000 | 1.08 |
7213AC | 65 | 120 | 23 | 1.5 | 0.6 | 76.5 | 108.5 | 1.5 | 0.6 | 64.2 | 65.8 | 9500 | 16000 | 1.08 |
7214C | 70 | 125 | 24 | 1.5 | 0.6 | 81.5 | 113.5 | 1.5 | 0.6 | 70.2 | 74.6 | 10000 | 17000 | 1.19 |
7214AC | 70 | 125 | 24 | 1.5 | 0.6 | 81.5 | 113.5 | 1.5 | 0.6 | 66.6 | 71.1 | 9000 | 15000 | 1.19 |
7215C | 75 | 130 | 25 | 1.5 | 0.6 | 86.5 | 118.5 | 1.5 | 0.6 | 72.7 | 80.2 | 9500 | 16000 | 1.29 |
7215AC | 75 | 130 | 25 | 1.5 | 0.6 | 86.5 | 118.5 | 1.5 | 0.6 | 68.9 | 76.3 | 8500 | 14000 | 1.29 |
7216C | 80 | 140 | 26 | 2 | 1 | 92.5 | 128 | 2 | 1 | 86.5 | 96.5 | 9000 | 15000 | 1.58 |
7216AC | 80 | 140 | 26 | 2 | 1 | 92.5 | 128 | 2 | 1 | 82.1 | 91.9 | 8000 | 13000 | 1.58 |
7217C | 85 | 150 | 28 | 2 | 1 | 98.5 | 137 | 2 | 1 | 97.4 | 107.5 | 8500 | 14000 | 1.96 |
7217AC | 85 | 150 | 28 | 2 | 1 | 98.5 | 137 | 2 | 1 | 92.5 | 102.4 | 7500 | 12000 | 1.96 |
7218C | 90 | 160 | 30 | 2 | 1 | 103 | 147 | 2 | 1 | 121.9 | 131.3 | 8000 | 13000 | 2.44 |
7218AC | 90 | 160 | 30 | 2 | 1 | 103 | 147 | 2 | 1 | 115.8 | 124.6 | 7000 | 11000 | 4.44 |
7219C | 95 | 170 | 32 | 2.1 | 1.1 | 112 | 153 | 2.1 | 1.1 | 128.9 | 145.1 | 7500 | 11000 | 2.93 |
7219AC | 95 | 170 | 32 | 2.1 | 1.1 | 112 | 153 | 2.1 | 1.1 | 122.5 | 138.3 | 6700 | 10000 | 2.93 |
7220C | 100 | 180 | 34 | 2.1 | 1.1 | 116 | 164 | 2.1 | 1.1 | 146.2 | 165.9 | 7000 | 11000 | 3.51 |
7220AC | 100 | 180 | 34 | 2.1 | 1.1 | 116 | 164 | 2.1 | 1.1 | 138.9 | 158.2 | 6700 | 10000 | 3.51 |
7221C | 105 | 190 | 36 | 2.1 | 1.1 | 122 | 173 | 2.1 | 1.1 | 164.3 | 188.2 | 7000 | 11000 | 4.17 |
7221AC | 105 | 190 | 36 | 2.1 | 1.1 | 122 | 173 | 2.1 | 1.1 | 156.3 | 179.5 | 6300 | 9500 | 4.17 |
7222C | 110 | 200 | 38 | 2.1 | 1.1 | 130 | 181 | 2.1 | 1.1 | 170.4 | 202.5 | 6700 | 10000 | 4.95 |
7222AC | 110 | 200 | 38 | 2.1 | 1.1 | 130 | 181 | 2.1 | 1.1 | 161.8 | 193 | 6000 | 9000 | 4.95 |
7224C | 120 | 215 | 40 | 2.1 | 1.1 | 143 | 192 | 2.1 | 1.1 | 175.4 | 218.4 | 6000 | 9000 | 6.01 |
7224AC | 120 | 215 | 40 | 2.1 | 1.1 | 143 | 192 | 2.1 | 1.1 | 166.3 | 207.9 | 5300 | 8000 | 6.01 |
7226C | 130 | 230 | 40 | 3 | 1.1 | 151.5 | 209 | 3 | 1.1 | 200.6 | 258.3 | 5600 | 8500 | 6.41 |
7226AC | 130 | 230 | 40 | 3 | 1.1 | 151.5 | 209 | 3 | 1.1 | 190.4 | 246.2 | 5000 | 7500 | 6.41 |
7228C | 140 | 250 | 42 | 3 | 1.1 | 165 | 225.5 | 3 | 1.1 | 223.6 | 306.6 | 5000 | 7500 | 8.17 |
7228AC | 140 | 250 | 42 | 3 | 1.1 | 165 | 225.5 | 3 | 1.1 | 212.3 | 292.2 | 4500 | 6700 | 8.17 |
7230C | 150 | 270 | 45 | 3 | 1.1 | 178.5 | 242 | 3 | 1.1 | 240.9 | 341.5 | 4500 | 6700 | 10.38 |
7230AC | 150 | 270 | 45 | 3 | 1.1 | 178.5 | 242 | 3 | 1.1 | 228.7 | 325.5 | 4000 | 6000 | 10.38 |
7232C | 160 | 290 | 48 | 3 | 1.1 | 193.5 | 257 | 3 | 1.1 | 248.6 | 365.8 | 4300 | 6300 | 13.1 |
7232AC | 160 | 290 | 48 | 3 | 1.1 | 193.5 | 257 | 3 | 1.1 | 236.1 | 348.6 | 3800 | 5600 | 13.1 |
7234C | 170 | 310 | 52 | 4 | 1.5 | 202 | 278.5 | 4 | 1.5 | 300.2 | 459.2 | 3800 | 5600 | 15.93 |
7234AC | 170 | 310 | 52 | 4 | 1.5 | 202 | 278.5 | 4 | 1.5 | 285 | 437.6 | 3600 | 5300 | 15.93 |
7236C | 180 | 320 | 52 | 4 | 1.5 | 212 | 288.5 | 4 | 1.5 | 311.2 | 490.8 | 3800 | 5600 | 16.61 |
7236AC | 180 | 320 | 52 | 4 | 1.5 | 212 | 288.5 | 4 | 1.5 | 295.5 | 467.7 | 3400 | 5000 | 16.61 |
7238C | 190 | 340 | 55 | 4 | 1.5 | 227 | 303.5 | 4 | 1.5 | 321.3 | 524.8 | 3400 | 5000 | 20.29 |
7238AC | 190 | 340 | 55 | 4 | 1.5 | 227 | 303.5 | 4 | 1.5 | 305.1 | 500.1 | 3200 | 4800 | 20.29 |
7240C | 200 | 360 | 58 | 4 | 1.5 | 242 | 318.5 | 4 | 1.5 | 330.9 | 558.6 | 3200 | 4800 | 24.49 |
7240AC | 200 | 360 | 58 | 4 | 1.5 | 242 | 318.5 | 4 | 1.5 | 314.2 | 532.3 | 3000 | 4500 | 24.49 |