SA090XPO Bore 9 Inch, Imperial Open Type X, 4-Point Contact Ball Bearings
The SA090XPO Thin-section four-point contact ball bearings are widely used in fields with stringent space and precision requirements, including: industrial robots (wrist and elbow joints), medical equipment (CT scanner rotating frames, surgical robots), aerospace (satellite antenna drive mechanisms), semiconductor equipment (wafer handling robotic arms), optical instruments (laser trackers, precision rotary tables), and precision machine tools (rotary worktables).
The SA090XPO bearing is a Inch Open Type X 4-Point Contact Ball Bearings with an inner diameter of 9 inch , an outer diameter of 9.5 inch, a width of 0.25 inch. It typically uses ISO Class NORMAL / ABEC-1 grade precision tolerances and AISI 52100 Steel rings, AISI 52100 Steel rolling mlement. Its dynamic radial rated load is approximately 1210 N, its static radial rated load is approximately 2810 N. Its dynamic axial rated load is approximately 9074 N, its static axial rated load is approximately 31225 N. Open (No seal) type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.
Interchange code: KAYDON KDY.KA090XP0, SILVERTHIN SA090XP0, SKF FPXA900, FAG L18QA900, NSK NBX22806, INA CSXA090, SSB RA090XP0, NTN KXA090
SA090XPO bearings ( 9 inch x 9.5 inch x 0.25 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 | SA090XPO |
| Bore | Cylindrical |
| Balls | standard 1/8" balls |
| Bearing Type | Inch Open Type X 4-Point Contact Ball Bearings |
| Cage | Brass; snapover separator |
| Series | SA SERIES 1/4" X 1/4" |
| 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 KDY.KA090XP0 SILVERTHIN SA090XP0 SKF FPXA900 FAG L18QA900 NSK NBX22806 INA CSXA090 SSB RA090XP0 NTN KXA090 |
| Interchangeable | SILVER THIN SA090XPO |
| Rows NO. | One |
| L1 Land Diameter [inch] | 9.186 |
| L2 Land Diameter [inch] | 9.314 |
| Fillet radius (Note 2) max | 0.025" |
| RADIAL DYNAMIC [lbf] | 1210 |
| RADIAL STATIC [lbf] | 2810 |
| THRUST DYNAMIC [lbf] | 2039 |
| THRUST STATIC [lbf] | 7019 |
| MOMENT DYNAMIC [LBS-in] | 4205 |
| MOMENT STATIC [LBS-in] | 12990 |
| APPROX WEIGHT [lb] | 0.44 |
The SA090XPO 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.
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