CRBS 508 V U T1 bearings ( 50 mm x 66 mm x 8 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 | CRBS 508 V U T1 |
| Bearing Type | Sealed Slim Type Crossed Roller Bearings Full complement |
| Mounting holes | No |
| Type | CRBS..VUU |
| Seal Type | U = One side sealed |
| Seal Material | Special synthetic rubber |
| Bore Type | Cylindrical |
| Rolling Element Type | cylindrical rollers |
| Oil holes | No |
| Manufacturer Part Code | CRBS508VUT1 |
| Load | radial, thrust and moment |
| Interchangeable | IKO CRBS 508 V U T1 |
| 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] | 1.969 |
| d φ Inside [inch] | 1.969 |
| D Φ Outside [inch] | 2.598 |
| B Width [inch] | 0.315 |
| r min Chamfer [inch] | 0.016 |
| da Mounting dimensions [inch] | 2.126 |
| Da Mounting dimensions [inch] | 2.402 |
| nB Reference speed (grease) [r/min] | 690 |
| Cr Radial Dynamic [lbf] | 1557 |
| C0r Radial Static [lbf] | 2203 |
| Internal Clearance | T1 |
| Radial internal clearances - T1 | min: -8 µm , max: 0 µm |
| m Bearing Weight [kg] | 0.084 |
The CRBS 508 V U T1 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.















