Machined Brass Cage 150TAC20D+L Super Precision Angular Contact Thrust Ball Bearings
The 150TAC20D+L 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 150TAC20D+L bearing is a Super Precision Angular Contact Thrust Ball Bearings, Double-Direction with an inner diameter of 150 mm , an outer diameter of 225 mm, a width of 90 mm. Bearing steel (SUJ2) rings, Bearing steel (SUJ2) rolling mlement. Its dynamic axial rated load is approximately 171013 N, its static axial rated load is approximately 619482 N. together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.
150TAC20D+L bearings ( 150 mm x 225 mm x 90 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 | 150TAC20D+L |
| Interchangeable | NSK 150TAC20D+L |
| Contact Angle [°] | 60 |
| Bearing Type | Super Precision Angular Contact Thrust Ball Bearings, Double-Direction |
| Spacer | L = Inner ring spacer |
| Dimension series | 20D = For combination with NN30 series |
| Type | TAC |
| Bearing Mass - m [lb] | 23.5892 |
| Ca Dynamic Axial [lbf] | 38443 |
| C0a Static Axial [lbf] | 139259 |
| nB Speed ratings (grease) [rpm] | 2373 |
| nG Speed ratings (oil) [rpm] | 2665 |
| d φ Inside [inch] | 5.9055 |
| D Φ Outside [inch] | 8.8582 |
| T Inner Ring Width [inch] | 3.5433 |
| C Outer Ring Width [inch] | 1.7717 |
| r min Chamfer [inch] | 0.0827 |
| r1 min Chamfer [inch] | 0.0433 |
| ra max Fillet Radius [inch] | 0.0787 |
| rb max Fillet Radius [inch] | 0.0394 |
| da Abutment Dimensions Shaft [inch] | 7.0079 |
| Da Abutment Dimensions Housing [inch] | 8.3858 |
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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