SC050ARO bearings ( 5 inch x 5.75 inch x 0.375 inch) have the advantages of Extremely compact, lightweight design, composite load-bearing capacity, high rigidity, and flexible installation, and are therefore widely used in the Robot joints, aerospace, semiconductor equipment, medical instruments and optoelectronic turntables.

| Part Number | SC050ARO |
| Bore | Cylindrical |
| Balls | standard 3/16" balls |
| Bearing Type | Inch Open Type A Angular Contact Ball Bearings |
| Cage | Brass; one piece pocket separator |
| Series | SC SERIES 3/8" X 3/8" |
| Race Width Tolerance | +0.000 -0.005" |
| Contact angle [°] | 30 |
| Temperature - T(min) [°C] | -30 |
| Temperature - T(max) [°C] | 110 |
| Seal type | Open (No seal) |
| Units | Inch |
| Load | radial, axial, moment and combined loads |
| Rolling Element Type | Balls |
| Ball Material | AISI 52100 Steel |
| Rolling Element Material | AISI 52100 Steel |
| Precision Class | ISO Class NORMAL / ABEC-1 |
| Equivalent | KAYDON KDY.KC050AR0 SILVERTHIN SC050AR0 SKF FPAC500 FAG L15SA500 NSK NBA12709 INA CSEC050 SSB RC050AR0 NTN KYC050 |
| Interchangeable | SILVER THIN SC050ARO |
| Rows NO. | One |
| L1 Land Diameter [inch] | 5.277 |
| L2 Land Diameter [inch] | 5.473 |
| L3 Land Diameter [inch] | 5.552 |
| Fillet radius (Note 2) max | 0.040" |
| RADIAL DYNAMIC [lbf] | 1315 |
| RADIAL STATIC [lbf] | 3180 |
| THRUST DYNAMIC [lbf] | 3199 |
| THRUST STATIC [lbf] | 9169 |
| APPROX WEIGHT [lb] | 0.58 |
The SC050ARO Thin-section angular contact ball bearings mainly consist of a thin-walled inner ring, a thin-walled outer ring, steel balls, and a cage. Their cross-sectional dimensions are constant and extremely thin, with contact angles typically of 15°, 25°, or 30°, making them suitable for space-constrained installations.
Thin-section angular contact ball bearings utilize a thin-walled, constant cross-section design, resulting in lightweight construction and a small footprint, effectively reducing the overall weight of equipment. They can simultaneously withstand radial and axial loads, possessing high rigidity, high-speed capability, and good positioning accuracy, and are easy to install.















