Machined Brass Cage 50BAR10S Super Precision Angular Contact Thrust Ball Bearings
The 50BAR10S Ultra-precision angular contact thrust ball bearings are designed for high-load, high-speed applications with stringent requirements for axial runout, and are widely used in precision machine tool spindles, ball screws, industrial robot joints, aero-engine accessory transmission systems, and high-precision centrifuges.
The 50BAR10S bearing is a Super Precision Angular Contact Thrust Ball Bearings, High-Speed with an inner diameter of 50 mm , an outer diameter of 80 mm, a width of 28.5 mm. S = bearing steel (SUJ2) rings, S = bearing steel (SUJ2) rolling mlement. Its dynamic radial rated load is approximately 14700 N, its static radial rated load is approximately 27700 N. together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.
50BAR10S bearings ( 50 mm x 80 mm x 28.5 mm) have the advantages of perfect balance of rotational accuracy, speed and rigidity, and are therefore widely used in the Machine tools, ball screw, aerospace, medical equipment.
| Part Number | 50BAR10S |
| Interchangeable | NSK 50BAR10S |
| Contact Angle [°] | 30 |
| Bearing Type | Super Precision Angular Contact Thrust Ball Bearings, High-Speed |
| Dimension series | 10 = 10 Series bore and outside diameter, special width |
| Type | BAR |
| Bearing Mass - m [lb] | 0.5997 |
| Cr Radial Dynamic [lbf] | 3304 |
| C0r Radial Static [lbf] | 6226 |
| nB Speed ratings (grease) [rpm] | 11600 |
| nG Speed ratings (oil) [rpm] | 14700 |
| d φ Inside [inch] | 1.9685 |
| D Φ Outside [inch] | 3.1496 |
| 2B Total Width [inch] | 1.1220 |
| r min Chamfer [inch] | 0.0394 |
| r1 min Chamfer [inch] | 0.0236 |
| a Effective Load Center [inch] | 1.0118 |
| Pa Permissible Axial Load [lbf] | 4136 |
The core design of ultra-precision angular contact thrust ball bearings lies in their large contact angle (typically 60°) and high-precision matching steel balls, which can simultaneously withstand heavy axial loads and radial loads. With optimized raceway geometry and cage, they achieve extremely low friction and high rigidity, ensuring that they maintain nanometer-level rotational accuracy and excellent axial positioning capability during high-speed operation.
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