SC180XP0 bearings ( 18 inch x 18.75 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 Robotics, aerospace, semiconductor equipment, medical instruments and optoelectronic turntables.

| Part Number | SC180XP0 |
| Bore | Cylindrical |
| Balls | standard 3/16" balls |
| Bearing Type | Inch Open Type X 4-Point Contact Ball Bearings |
| Cage | Brass; snapover 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 | moment loading and reversing axial loading |
| Rolling Element Type | Balls |
| Ball Material | AISI 52100 Steel |
| Rolling Element Material | AISI 52100 Steel |
| Precision Class | ISO Class NORMAL / ABEC-1 |
| Equivalent | KAYDON KDN.KC180XP0 SILVERTHIN SC180XP0 SKF FPXC1800 FAG L18SA1800 NSK NBX45709 INA CSXC180 SSB RC180XP0 NTN KXC180 |
| Interchangeable | SILVER THIN SC180XP0 |
| Rows NO. | One |
| L1 Land Diameter [inch] | 18.277 |
| L2 Land Diameter [inch] | 18.473 |
| Fillet radius (Note 2) max | 0.040" |
| RADIAL DYNAMIC [lbf] | 3295 |
| RADIAL STATIC [lbf] | 8840 |
| THRUST DYNAMIC [lbf] | 5759 |
| THRUST STATIC [lbf] | 22087 |
| MOMENT DYNAMIC [LBS-in] | 22710 |
| MOMENT STATIC [LBS-in] | 81190 |
| APPROX WEIGHT [lb] | 1.94 |
The SC180XP0 Thin-section four-point contact ball bearings are mainly composed of a thin-walled inner ring, a thin-walled outer ring, steel balls, and a cage. The raceway has a Gothic arch shape, and the steel balls form four-point contact with the inner and outer rings. The cross-sectional dimensions are constant and extremely thin.
Thin-section four-point contact ball bearings utilize a thin-walled constant cross-section design, resulting in lightweight construction and a small footprint. A single bearing can simultaneously withstand radial loads, bidirectional axial loads, and overturning moments. They possess high rigidity, high-speed capability, and are easy to install, making them a viable replacement for traditional combined bearings.















