1. Structural features: ISO standard; Bearing ring material is made of high-purity bearing steel. After special heat treatment process, cold treatment process and material modification technology, the fatigue life of 72 series bearings is greatly improved.
2. Contact angle: 15° and 25°, used in pairs to withstand axial and radial loads or combined loads.
3. Cage: Outer ring oriented phenolic resin cage and rolling element oriented nylon cage can be used for different applications.
4. Application: High-precision angular contact ball bearings are mainly used for CNC lathe spindles, various grinding machine workpiece shafts, grinding wheel spindles, photovoltaic slicers, vacuum pumps, fans, precision transmission machinery.
| Part Number | Dimensions (mm) | Basic Load Ratings (kN) | Steel Ball Speed Limit (r/min) | Weight (kg) | |||||
| d | D | B | r (minimum) | r1 (minimum) | Ca (Dynamic) | Coa (Static) | Grease | ||
| 728C | 8 | 24 | 8 | 0.30 | 0.15 | 4.50 | 2.30 | 37500 | 0.021 |
| 728AC | 8 | 24 | 8 | 0.30 | 0.15 | 4.40 | 2.20 | 31250 | 0.022 |
| 7200C | 10 | 30 | 9 | 0.60 | 0.15 | 4.86 | 2.34 | 30000 | 0.030 |
| 7200AC | 10 | 30 | 9 | 0.60 | 0.15 | 4.68 | 2.21 | 25000 | 0.032 |
| 7201C | 12 | 32 | 10 | 0.60 | 0.15 | 5.27 | 2.61 | 27000 | 0.036 |
| 7201AC | 12 | 32 | 10 | 0.60 | 0.15 | 5.15 | 2.48 | 23000 | 0.038 |
| 7202C | 15 | 35 | 11 | 0.60 | 0.15 | 6.73 | 3.42 | 24000 | 0.043 |
| 7202AC | 15 | 35 | 11 | 0.60 | 0.15 | 6.52 | 3.24 | 20000 | 0.045 |
| 7203C | 17 | 40 | 12 | 0.60 | 0.30 | 8.31 | 4.32 | 21000 | 0.062 |
| 7203AC | 17 | 40 | 12 | 0.60 | 0.30 | 7.96 | 4.10 | 17500 | 0.065 |
| 7204C | 20 | 47 | 14 | 1.00 | 0.30 | 10.71 | 5.27 | 18000 | 0.100 |
| 7204AC | 20 | 47 | 14 | 1.00 | 0.30 | 10.26 | 5.04 | 15000 | 0.103 |
| 7205C | 25 | 52 | 15 | 1.00 | 0.30 | 12.15 | 6.48 | 15500 | 0.140 |
| 7205AC | 25 | 52 | 15 | 1.00 | 0.30 | 11.70 | 6.26 | 13000 | 0.145 |
| 7206C | 30 | 62 | 16 | 1.00 | 0.30 | 21.78 | 14.40 | 13000 | 0.190 |
| 7206AC | 30 | 62 | 16 | 1.00 | 0.30 | 21.06 | 13.77 | 11000 | 0.195 |
| 7207C | 35 | 72 | 17 | 1.10 | 0.60 | 28.71 | 19.44 | 11000 | 0.280 |
| 7207AC | 35 | 72 | 17 | 1.10 | 0.60 | 27.63 | 18.72 | 9300 | 0.285 |
| 7208C | 40 | 80 | 18 | 1.10 | 0.60 | 36.90 | 25.20 | 10000 | 0.360 |
| 7208AC | 40 | 80 | 18 | 1.10 | 0.60 | 35.10 | 24.30 | 8300 | 0.365 |
| 7209C | 45 | 85 | 19 | 1.10 | 0.60 | 38.07 | 27.90 | 9200 | 0.410 |
| 7209AC | 45 | 85 | 19 | 1.10 | 0.60 | 36.90 | 27.00 | 7700 | 0.420 |
| 7210C | 50 | 90 | 20 | 1.10 | 0.60 | 40.41 | 30.60 | 8500 | 0.460 |
| 7210AC | 50 | 90 | 20 | 1.10 | 0.60 | 38.07 | 29.25 | 7100 | 0.470 |
| 7211C | 55 | 100 | 21 | 1.50 | 0.60 | 49.77 | 38.70 | 7700 | 0.610 |
| 7211AC | 55 | 100 | 21 | 1.50 | 0.60 | 47.43 | 36.45 | 6500 | 0.620 |
| 7212C | 60 | 110 | 22 | 1.50 | 0.60 | 60.84 | 47.70 | 7100 | 0.809 |
| 7212AC | 60 | 110 | 22 | 1.50 | 0.60 | 57.33 | 45.00 | 5800 | 0.820 |
| 7213C | 65 | 120 | 23 | 1.50 | 0.60 | 68.49 | 54.00 | 6500 | 0.998 |
| 7213AC | 65 | 120 | 23 | 1.50 | 0.60 | 65.52 | 51.30 | 5400 | 1.023 |
| 7214C | 70 | 125 | 24 | 1.50 | 0.60 | 71.37 | 57.60 | 6100 | 1.113 |
| 7214AC | 70 | 125 | 24 | 1.50 | 0.60 | 68.49 | 55.80 | 5100 | 1.124 |
| 7215C | 75 | 130 | 25 | 1.50 | 0.60 | 74.88 | 62.55 | 5800 | 1.215 |
| 7215AC | 75 | 130 | 25 | 1.50 | 0.60 | 71.37 | 60.30 | 4800 | 1.222 |
| 7216C | 80 | 140 | 26 | 2.00 | 1.00 | 87.75 | 73.35 | 5400 | 1.453 |
| 7216AC | 80 | 140 | 26 | 2.00 | 1.00 | 83.07 | 70.20 | 4500 | 1.483 |
| 7217C | 85 | 150 | 28 | 2.00 | 1.00 | 89.55 | 79.20 | 5100 | 1.812 |
| 7217AC | 85 | 150 | 28 | 2.00 | 1.00 | 86.04 | 76.50 | 4200 | 1.832 |
| 7218C | 90 | 160 | 30 | 2.00 | 1.00 | 114.30 | 100.80 | 4800 | 2.251 |
| 7218AC | 90 | 160 | 30 | 2.00 | 1.00 | 108.90 | 95.40 | 4000 | 2.283 |
| 7219C | 95 | 170 | 32 | 2.10 | 1.10 | 124.20 | 108.00 | 4500 | 2.711 |
| 7219AC | 95 | 170 | 32 | 2.10 | 1.10 | 119.70 | 102.60 | 3700 | 2.741 |
| 7220C | 100 | 180 | 34 | 2.10 | 1.10 | 140.40 | 123.30 | 4200 | 3.253 |
| 7220AC | 100 | 180 | 34 | 2.10 | 1.10 | 133.20 | 116.10 | 3500 | 3.292 |
