SB055CPO Bore 5.5 Inch, Imperial Open Type C, Radial Contact Ball Bearings
The SB055CPO Thin-section deep-groove ball bearings are primarily used in applications where space is limited, weight reduction is required, and loads are moderate. Typical applications include industrial robots (such as joints and end-effectors), semiconductor manufacturing equipment, medical imaging equipment (CT scanner gantries), optical trackers, radar antennas, packaging machinery spindles, and lightweight aerospace transmission mechanisms. They are capable of supporting both radial and bidirectional axial loads.
The SB055CPO bearing is a Inch Open Type C Radial Contact Ball Bearings with an inner diameter of 5.5 inch , an outer diameter of 6.125 inch, a width of 0.3125 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 985 N, its static radial rated load is approximately 2360 N. Open (No seal) type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.
Interchange code: KAYDON KDY.KB055CP0, SILVERTHIN SB055CP0, SKF FPCB508, FAG L10RA508, NSK NBC13907, INA CSCB055, SSB RB055CP0, NTN KRB055
SB055CPO bearings ( 5.5 inch x 6.125 inch x 0.3125 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 | SB055CPO |
| Bore | Cylindrical |
| Balls | standard 5/32" balls |
| Bearing Type | Inch Open Type C Radial Contact Ball Bearings |
| Cage | Brass; snapover separator |
| Series | SB SERIES 5/16" X 5/16" |
| 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.KB055CP0 SILVERTHIN SB055CP0 SKF FPCB508 FAG L10RA508 NSK NBC13907 INA CSCB055 SSB RB055CP0 NTN KRB055 |
| Interchangeable | SILVER THIN SB055CPO |
| Rows NO. | One |
| L1 Land Diameter [inch] | 5.731 |
| L2 Land Diameter [inch] | 5.893 |
| Fillet radius (Note 2) max | 0.040" |
| RADIAL DYNAMIC [lbf] | 985 |
| RADIAL STATIC [lbf] | 2360 |
| APPROX WEIGHT [lb] | 0.41 |
The SB055CPO 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.
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