SD045CPO bearings ( 4.5 inch x 5.5 inch x 0.5 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 Robots, semiconductor equipment, medical instruments, radar antennas, and aerospace precision mechanisms.

| Part Number | SD045CPO |
| Bore | Cylindrical |
| Balls | standard 1/4" balls |
| Bearing Type | Inch Open Type C Radial Contact Ball Bearings |
| Cage | Brass; snapover separator |
| Series | SD SERIES 1/2" X 1/2" |
| Race Width Tolerance | +0.000 -0.005" |
| 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.KD045CP0 SILVERTHIN SD045CP0 SKF FPCD408 FAG L10TA408 NSK NBC11412 INA CSCD045 SSB RD045CP0 NTN KRD045 |
| Interchangeable | SILVER THIN SD045CPO |
| Rows NO. | One |
| L1 Land Diameter [inch] | 4.87 |
| L2 Land Diameter [inch] | 5.13 |
| Fillet radius (Note 2) max | 0.060" |
| RADIAL DYNAMIC [lbf] | 1860 |
| RADIAL STATIC [lbf] | 3420 |
| APPROX WEIGHT [lb] | 0.88 |
The SD045CPO Thin-section deep groove 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, typically conforming to ISO 12240 standards, and are available in open or sealed configurations.
Thin-section deep groove ball bearings utilize a thin-walled constant cross-section design, resulting in lightweight construction and a small footprint, significantly reducing the overall weight and size of equipment. They can simultaneously withstand radial and bidirectional axial loads, exhibiting low friction and high-speed characteristics, and are easy to install, making them suitable for light to medium load conditions.















