When precision and reliability are crucial, the 73 and 74 series angular ontact ball bearings deliver exceptional performance for a wide range of industrial and mechanical applications. Engineered for high-speed operations, axial and radial load handling, and long service life, these bearings are a preferred choice for engineers and equipment manufacturers worldwide.
Investing in high-quality angular contact ball bearings can significantly improve the performance and longevity of your equipment. The 73 and 74 Series offer:
Reduced Downtime: Longer operational life minimizes maintenance intervals
High Efficiency: Low friction design ensures smoother rotation and energy savings
Flexibility: Available in multiple sizes and configurations for diverse applications
Reliability: Manufactured to international quality standards for consistent performance
Whether you’re upgrading your machinery or designing a new system, the 73 and 74 Series Angular Contact Ball Bearings provide a reliable foundation for precision and durability.
| Dimensions of 73 and 74 Series Angular Contact Ball Bearings | |||||||||||||
| Column 1 | Column 2 | Column 3 | Column 4 | Column 5 | Column 6 | Column 7 | Column 8 | Column 9 | Column 10 | Column 11 | Column 12 | Column 13 | Column 14 |
| Model | Inner Diameter | Outer Diameter | Width | Central Economic | Sphere Diameter | Number of Pitches | Outer Trench | Outer Inner Diameter | Groove Curvature | Inner Trench | Inner and Outer Diameter | Groove Curvature | |
| 7300 | 10 | 35 | 11 | 23.5 | 6.35 | 7 | 29.858 | 27.6 | 3.27 | 17.15 | 19.4 | 3.27 | |
| 7301 | 12 | 37 | 12 | 24.5 | 7.938 | 6 | 32.43 | 29.7 | 4.08 | 16.562 | 19.3 | 4.08 | |
| 7302 | 15 | 42 | 13 | 29.5 | 7.938 | 7 | 37.44 | 34.7 | 4.08 | 21.56 | 24.3 | 4.08 | |
| 7303 | 17 | 47 | 14 | 32.5 | 8.731 | 7 | 41.24 | 38.6 | 4.49 | 23.76 | 26.8 | 4.49 | |
| 7304 | 20 | 52 | 15 | 36 | 9.525 | 7 | 45.53 | 42.2 | 4.9 | 26.47 | 29.8 | 4.9 | |
| 7305 | 25 | 62 | 17 | 43.5 | 11.509 | 7 | 55.01 | 51 | 6.03 | 31.99 | 36 | 5.92 | |
| 7306 | 30 | 72 | 19 | 52 | 12 | 8 | 64.01 | 59.2 | 6.18 | 40 | 44.8 | 6.18 | |
| 7307 | 35 | 80 | 21 | 58.5 | 13.494 | 8 | 71.99 | 66.8 | 6.94 | 45 | 50 | 6.94 | |
| 7308 | 40 | 90 | 23 | 65.5 | 15.081 | 8 | 80.58 | 75.2 | 7.76 | 50.41 | 56.5 | 7.76 | |
| 7309 | 45 | 100 | 25 | 73.5 | 17.462 | 8 | 90.96 | 84.5 | 8.99 | 56.03 | 62.4 | 8.99 | Big ball |
| 7309 | 45 | 100 | 25 | 72.5 | 16.669 | 8 | 89.169 | 83.3 | 8.58 | 55.831 | 61.7 | 8.58 | Small Ball |
| 7310 | 50 | 110 | 27 | 80 | 19.05 | 8 | 99.05 | 92.3 | 9.81 | 60.95 | 67.6 | 9.81 | Big ball |
| 7310 | 50 | 110 | 27 | 80 | 17.4625 | 8 | 97.4625 | 91.3 | 8.99 | 62.5375 | 68.7 | 8.99 | Small Ball |
| 7311 | 55 | 120 | 29 | 87.5 | 20.638 | 8 | 108.138 | 100.9 | 10.63 | 66.862 | 74 | 10.63 | |
| 7312 | 60 | 130 | 31 | 95 | 22.225 | 7 | 117.225 | 109.4 | 11.45 | 72.775 | 80.5 | 11.45 | |
| 7313 | 65 | 140 | 33 | 102.5 | 23.813 | 8 | 126.313 | 117.9 | 12.26 | 78.687 | 87 | 12.26 | |
| 7314 | 70 | 150 | 35 | 110 | 25.4 | 8 | 135.4 | 126.5 | 13.08 | 84.6 | 93.5 | 13.08 | |
| 7315 | 75 | 160 | 37 | 117.5 | 26.988 | 8 | 144.48 | 135 | 13.9 | 90.51 | 99.9 | 13.9 | |
| 7316 | 80 | 170 | 39 | 125 | 26.988 | 8 | 151.988 | 142.5 | 13.9 | 98.012 | 107.4 | 13.9 | |
| 7317 | 85 | 180 | 41 | 132.5 | 28.757 | 8 | 161.257 | 151.2 | 14.8 | 103.743 | 113.8 | 14.8 | |
| 7318 | 90 | 190 | 43 | 140 | 30.163 | 8 | 170.16 | 158.1 | 15.53 | 109.84 | 121.9 | 15.53 | |
| 7319 | 95 | 200 | 45 | 147.5 | 31.75 | 8 | 179.25 | 168.1 | 16.35 | 115.75 | 126.9 | 16.35 | |
| 7320 | 100 | 215 | 47 | 157.5 | 33.3375 | 8 | 190.8375 | 17.16 | 124.1625 | 135.8 | 17.16 | ||
| 7400 | |||||||||||||
| 7401 | 12 | 42 | 13 | ||||||||||
| 7402 | 15 | 52 | 15 | ||||||||||
| 7403 | 17 | 62 | 17 | 39.5 | 12.7 | 6 | 52.2 | 47.1 | 6.54 | 26.8 | 31.8 | 6.54 | |
| 7404 | 20 | 72 | 19 | 46 | 14.288 | 6 | 60.288 | 54.5 | 7.35 | 31.712 | 37.4 | 7.35 | |
| 7405 | 25 | 80 | 21 | 52.5 | 16.669 | 6 | 69.169 | 62.5 | 8.58 | 35.831 | 42.5 | 8.58 | |
| 7406 | 30 | 90 | 23 | 60 | 17.4625 | 6 | 77.4625 | 70.5 | 8.99 | 42.5375 | 49.5 | 8.99 | |
| 7407 | 35 | 100 | 25 | 67.5 | 19.05 | 6 | 86.55 | 78.9 | 9.81 | 48.45 | 56.1 | 9.81 | |
| 7408 | 40 | 110 | 27 | 75 | 20.638 | 6 | 95.638 | 87.4 | 10.62 | 54.362 | 62.6 | 10.62 | |
| 7409 | 45 | 120 | 29 | 82.5 | 22.225 | 6 | 104.725 | 95.8 | 11.44 | 60.275 | 69.1 | 11.44 | |
| 7410 | 50 | 130 | 31 | 90 | 23.813 | ||||||||
| 7411 | 55 | 140 | 33 | 25.4 | |||||||||
| 7412 | 60 | 150 | 35 | 26.988 | |||||||||
| 7413 | 65 | 160 | 37 | 28.575 | |||||||||
| 7414 | 70 | 180 | 42 | ||||||||||
| 7415 | 75 | 190 | 45 | ||||||||||
| 7416 | 80 | 200 | 48 | ||||||||||
| 7417 | 85 | 210 | 52 | ||||||||||
| 7418 | 90 | 225 | 54 | ||||||||||
| 7419 | 95 | 240 | 55 | ||||||||||
| 7420 | 100 | 250 | 58 | ||||||||||
High Load Capacity
Both 73 and 74 Series bearings are designed to handle combined loads, including axial and radial forces. The optimized contact angle allows them to sustain higher axial loads in one direction, making them ideal for applications such as electric motors, pumps, gearboxes, and machine tools.
Precision and Rigidity
Manufactured with tight tolerances, these angular contact bearings provide superior rigidity and dimensional accuracy. This ensures stable performance in high-speed or high-precision environments, reducing vibration and noise.
Durable Materials
Made from high-quality bearing steel, the 73 and 74 Series offer excellent wear resistance, fatigue strength, and operational reliability. Certain models are available with advanced heat treatments or ceramic ball options for even greater durability under extreme conditions.
Versatile Configurations
The series includes single-row and double-row designs to suit various load and alignment requirements. Double-row configurations provide higher axial load support in both directions, which is ideal for applications where space is limited but load demands are high.
Enhanced Sealing Options
To extend service life and reduce maintenance, these bearings can be supplied with a variety of seals and shields. This helps protect against dust, moisture, and other contaminants, making them suitable for challenging industrial environments.
Machine Tool Spindles: High-speed rotation with minimal vibration
Pumps and Compressors: Handling radial and axial loads simultaneously
Robotics and Automation: Precise movement and long service intervals
Gearboxes and Transmission Units: Reliable support under heavy load and high rotation speeds
Electric Motors: Maintaining efficiency and reducing wear in high-speed operations
