CRB12025UUC2 Sealed Standard Crossed Roller Bearings Full Complement
The CRB12025UUC2 Crossed roller bearings are suitable for high-precision, high-rigidity, and space-constrained rotary applications. Classic applications include industrial robot joints and positioners, CNC machine tool rotary tables and indexing heads, medical CT scanner rotating frames, radar antenna rotation mechanisms, precision measuring instruments, and aerospace simulation rotary tables.
The CRB12025UUC2 bearing is a Sealed Standard Crossed Roller Bearings Full complement with an inner diameter of 120 mm , an outer diameter of 180 mm, a width of 25 mm. It typically uses P0 (ISO Class NORMAL / ABEC-1) grade precision tolerances and 50Mn,42CrMo rings, GCr15 rolling mlement. It primarily bears radial, thrust and moment, Its dynamic radial rated load is approximately 59900 N, its static radial rated load is approximately 95400 N. It uses C2 standard radial clearance, UU = Two sides sealed type, Special synthetic rubber. together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.
CRB12025UUC2 bearings ( 120 mm x 180 mm x 25 mm) have the advantages of The rollers are arranged in a cross pattern, allowing them to withstand radial, axial, and overturning moments simultaneously. They offer high rigidity and rotational accuracy while compact and space-saving design, and easy installation, and are therefore widely used in the Industrial robots, CNC machine tools, medical equipment, precision measuring instruments and aerospace.
| Part Number | CRB12025UUC2 |
| Bearing Type | Sealed Standard Crossed Roller Bearings Full complement |
| Mounting holes | No |
| Type | CRB..UU |
| Seal Type | UU = Two sides sealed |
| Seal Material | Special synthetic rubber |
| Bore Type | Cylindrical |
| Rolling Element Type | cylindrical rollers |
| Oil holes | No |
| Manufacturer Part Code | CRB 12025 UU C2 |
| Load | radial, thrust and moment |
| Interchangeable | IKO CRB12025UUC2 |
| Units | Metric |
| Rows NO. | One |
| Rolling Element Material | GCr15 |
| Inner/Outer Ring Material | 50Mn,42CrMo |
| Lubrication | grease |
| Accuracy class | P0 (ISO Class NORMAL / ABEC-1) |
| Guidance of cylindrical roller | Full complement |
| Temperature - T(min) [°C] | -20 |
| Temperature - T(max) [°C] | 120 |
| Shaft diameter [inch] | 4.724 |
| d φ Inside [inch] | 4.724 |
| D Φ Outside [inch] | 7.087 |
| B Width [inch] | 0.984 |
| r min Chamfer [inch] | 0.059 |
| da Mounting dimensions [inch] | 5.197 |
| Da Mounting dimensions [inch] | 6.457 |
| nB Reference speed (grease) [r/min] | 267 |
| Cr Radial Dynamic [lbf] | 13465 |
| C0r Radial Static [lbf] | 21445 |
| Internal Clearance | C2 |
| Radial internal clearances - C2 | min: 15 µm , max: 35 µm |
| m Bearing Weight [kg] | 2.62 |
| Similar Model | CRB 12025 UU C2 P6 CRB 12025 UU C2 P5 CRB 12025 UU C2 P4 CRB 12025 UU C2 P2 |
The CRB12025UUC2 Crossed roller bearings consist of inner and outer rings, cylindrical rollers, spacers, and seals. The rollers are arranged at 90° intervals within a V-shaped raceway, allowing for multi-directional load bearing even in a single row.
Crossed roller bearings can simultaneously withstand radial loads, bidirectional axial loads, and overturning moments. They possess extremely high rigidity and rotational accuracy, and their compact structure saves installation space, simplifying machine tool design.
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